Pub/Sub quotas and limits | Pub/Sub Documentation

<!doctype html> <html lang="en" dir="ltr"> <head> <meta name="google-signin-client-id" content="721724668570-nbkv1cfusk7kk4eni4pjvepaus73b13t.apps.googleusercontent.com"> <meta name="google-signin-scope" content="profile email https://www.googleapis.com/auth/developerprofiles https://www.googleapis.com/auth/developerprofiles.award https://www.googleapis.com/auth/cloud-platform https://www.googleapis.com/auth/webhistory"> <meta property="og:site_name" content="Google Cloud"> <meta property="og:type" content="website"><meta name="theme-color" content="#039be5"><meta charset="utf-8"> <meta content="IE=Edge" http-equiv="X-UA-Compatible"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="manifest" href="/_pwa/cloud/manifest.json" crossorigin="use-credentials"> <link rel="preconnect" href="//www.gstatic.com" crossorigin> <link rel="preconnect" href="//fonts.gstatic.com" crossorigin> <link rel="preconnect" href="//fonts.googleapis.com" crossorigin> <link rel="preconnect" href="//apis.google.com" crossorigin> <link rel="preconnect" href="//www.google-analytics.com" crossorigin><link rel="stylesheet" href="//fonts.googleapis.com/css?family=Google+Sans:400,500,700|Google+Sans+Text:400,400italic,500,500italic,700,700italic|Roboto:400,400italic,500,500italic,700,700italic|Roboto+Mono:400,500,700&display=swap"> <link rel="stylesheet" href="//fonts.googleapis.com/css2?family=Material+Icons&family=Material+Symbols+Outlined&display=block"><link rel="stylesheet" href="https://www.gstatic.com/devrel-devsite/prod/v38a693baeb774512feb42f10aac8f755d8791ed41119b5be7a531f8e16f8279f/cloud/css/app.css"> <link rel="shortcut icon" href="https://www.gstatic.com/devrel-devsite/prod/v38a693baeb774512feb42f10aac8f755d8791ed41119b5be7a531f8e16f8279f/cloud/images/favicons/onecloud/favicon.ico"> <link rel="apple-touch-icon" href="https://www.gstatic.com/devrel-devsite/prod/v38a693baeb774512feb42f10aac8f755d8791ed41119b5be7a531f8e16f8279f/cloud/images/favicons/onecloud/super_cloud.png"><link rel="canonical" href="https://cloud.google.com/pubsub/quotas"><link rel="search" type="application/opensearchdescription+xml" title="Google Cloud" href="https://cloud.google.com/s/opensearch.xml"> <link rel="alternate" hreflang="en" href="https://cloud.google.com/pubsub/quotas" /><link rel="alternate" hreflang="x-default" href="https://cloud.google.com/pubsub/quotas" /><link rel="alternate" hreflang="zh-Hans" href="https://cloud.google.com/pubsub/quotas?hl=zh-cn" /><link rel="alternate" hreflang="fr" href="https://cloud.google.com/pubsub/quotas?hl=fr" /><link rel="alternate" hreflang="de" href="https://cloud.google.com/pubsub/quotas?hl=de" /><link rel="alternate" hreflang="id" href="https://cloud.google.com/pubsub/quotas?hl=id" /><link rel="alternate" hreflang="it" href="https://cloud.google.com/pubsub/quotas?hl=it" /><link rel="alternate" hreflang="ja" href="https://cloud.google.com/pubsub/quotas?hl=ja" /><link rel="alternate" hreflang="ko" href="https://cloud.google.com/pubsub/quotas?hl=ko" /><link rel="alternate" hreflang="pt-BR" href="https://cloud.google.com/pubsub/quotas?hl=pt-br" /><link rel="alternate" hreflang="es-419" href="https://cloud.google.com/pubsub/quotas?hl=es-419" /><title>Pub/Sub quotas and limits  |  Pub/Sub Documentation  |  Google Cloud</title> <meta property="og:title" content="Pub/Sub quotas and limits  |  Pub/Sub Documentation  |  Google Cloud"><meta property="og:url" content="https://cloud.google.com/pubsub/quotas"><meta property="og:image" content="https://cloud.google.com/_static/cloud/images/social-icon-google-cloud-1200-630.png"> <meta property="og:image:width" content="1200"> <meta property="og:image:height" content="630"><meta property="og:locale" content="en"><meta name="twitter:card" content="summary_large_image"><script type="application/ld+json"> { "@context": "https://schema.org", "@type": "Article", "headline": "Pub/Sub quotas and limits" } </script><script type="application/ld+json"> { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [{ "@type": "ListItem", "position": 1, "name": "Pub/Sub", "item": "https://cloud.google.com/pubsub" },{ "@type": "ListItem", "position": 2, "name": "Documentation", "item": "https://cloud.google.com/pubsub/docs" },{ "@type": "ListItem", "position": 3, "name": "Pub/Sub quotas and limits", "item": "https://cloud.google.com/pubsub/quotas" }] } </script> <link rel="stylesheet" href="/extras.css"></head> <body class="" template="page" theme="cloud-theme" type="article" layout="docs" free-trial display-toc pending> <devsite-progress type="indeterminate" id="app-progress"></devsite-progress> <a href="#main-content" class="skip-link button"> Skip to main content </a> <section class="devsite-wrapper"> <devsite-cookie-notification-bar></devsite-cookie-notification-bar><cloudx-track userCountry="SG"></cloudx-track> <cloudx-utils-init></cloudx-utils-init> <devsite-header keep-tabs-visible> <div class="devsite-header--inner nocontent"> <div class="devsite-top-logo-row-wrapper-wrapper"> <div class="devsite-top-logo-row-wrapper"> <div class="devsite-top-logo-row"> <button type="button" id="devsite-hamburger-menu" class="devsite-header-icon-button button-flat material-icons gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Navigation menu button" visually-hidden aria-label="Open menu"> </button> <div class="devsite-product-name-wrapper"> <a href="/" class="devsite-site-logo-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Site logo" track-type="globalNav" track-name="googleCloud" track-metadata-position="nav" track-metadata-eventDetail="nav"> <picture> <img src="https://www.gstatic.com/devrel-devsite/prod/v38a693baeb774512feb42f10aac8f755d8791ed41119b5be7a531f8e16f8279f/cloud/images/cloud-logo.svg" class="devsite-site-logo" alt="Google Cloud"> </picture> </a> <span class="devsite-product-name"> <ul class="devsite-breadcrumb-list" > <li class="devsite-breadcrumb-item devsite-has-google-wordmark"> </li> </ul> </span> </div> <div class="devsite-top-logo-row-middle"> <div class="devsite-header-upper-tabs"> <cloudx-tabs-nav class="upper-tabs"> <nav class="devsite-tabs-wrapper" aria-label="Upper tabs"> <tab class="devsite-active"> <a href="https://cloud.google.com/docs" class="devsite-tabs-content gc-analytics-event " track-metadata-eventdetail="https://cloud.google.com/docs" track-type="nav" track-metadata-position="nav - docs-home" track-metadata-module="primary nav" aria-label="Documentation, selected" data-category="Site-Wide Custom Events" data-label="Tab: Documentation" track-name="docs-home" track-link-column-type="single-column" > Documentation </a> </tab> <tab class="devsite-dropdown devsite-clickable "> <a href="https://cloud.google.com/docs/tech-area-overviews" class="devsite-tabs-content gc-analytics-event " track-metadata-eventdetail="https://cloud.google.com/docs/tech-area-overviews" track-type="nav" track-metadata-position="nav - technology-areas" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Technology areas" track-name="technology-areas" track-link-column-type="single-column" > Technology areas </a> <button aria-haspopup="menu" aria-expanded="false" aria-label="Dropdown menu for Technology areas" track-type="nav" track-metadata-eventdetail="https://cloud.google.com/docs/tech-area-overviews" track-metadata-position="nav - technology-areas" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Technology areas" track-name="technology-areas" track-link-column-type="single-column" class="devsite-tabs-dropdown-toggle devsite-icon devsite-icon-arrow-drop-down"></button> <div class="devsite-tabs-dropdown" role="menu" aria-label="submenu" hidden> <button class="devsite-tabs-close-button material-icons button-flat gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Close dropdown menu" aria-label="Close dropdown menu" track-type="nav" track-name="close" track-metadata-eventdetail="#" track-metadata-position="nav - technology-areas" track-metadata-module="tertiary nav">close</button> <div class="devsite-tabs-dropdown-content"> <div class="devsite-tabs-dropdown-column "> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-item"> <a href="https://cloud.google.com/docs/ai-ml" track-type="nav" track-metadata-eventdetail="https://cloud.google.com/docs/ai-ml" track-metadata-position="nav - technology-areas" track-metadata-module="tertiary nav" tooltip > <div class="devsite-nav-item-title"> AI and ML </div> </a> </li> <li class="devsite-nav-item"> <a href="https://cloud.google.com/docs/application-development" track-type="nav" track-metadata-eventdetail="https://cloud.google.com/docs/application-development" track-metadata-position="nav - technology-areas" track-metadata-module="tertiary nav" tooltip > <div class="devsite-nav-item-title"> Application development </div> </a> </li> <li class="devsite-nav-item"> <a href="https://cloud.google.com/docs/application-hosting" track-type="nav" track-metadata-eventdetail="https://cloud.google.com/docs/application-hosting" track-metadata-position="nav - technology-areas" track-metadata-module="tertiary nav" tooltip > <div class="devsite-nav-item-title"> Application hosting </div> </a> </li> <li class="devsite-nav-item"> <a href="https://cloud.google.com/docs/compute-area" track-type="nav" track-metadata-eventdetail="https://cloud.google.com/docs/compute-area" track-metadata-position="nav - technology-areas" track-metadata-module="tertiary nav" tooltip > <div class="devsite-nav-item-title"> Compute </div> </a> </li> <li class="devsite-nav-item"> <a href="https://cloud.google.com/docs/data" track-type="nav" track-metadata-eventdetail="https://cloud.google.com/docs/data" track-metadata-position="nav - technology-areas" track-metadata-module="tertiary nav" tooltip > <div class="devsite-nav-item-title"> Data analytics and pipelines </div> </a> </li> <li class="devsite-nav-item"> <a href="https://cloud.google.com/docs/databases" track-type="nav" track-metadata-eventdetail="https://cloud.google.com/docs/databases" track-metadata-position="nav - technology-areas" track-metadata-module="tertiary nav" tooltip > <div class="devsite-nav-item-title"> Databases </div> </a> </li> <li class="devsite-nav-item"> <a href="https://cloud.google.com/docs/dhm-cloud" track-type="nav" track-metadata-eventdetail="https://cloud.google.com/docs/dhm-cloud" track-metadata-position="nav - technology-areas" track-metadata-module="tertiary nav" tooltip > <div class="devsite-nav-item-title"> Distributed, hybrid, and multicloud </div> </a> </li> <li class="devsite-nav-item"> <a href="https://cloud.google.com/docs/generative-ai" track-type="nav" track-metadata-eventdetail="https://cloud.google.com/docs/generative-ai" track-metadata-position="nav - technology-areas" track-metadata-module="tertiary nav" tooltip > <div class="devsite-nav-item-title"> Generative AI </div> </a> </li> <li class="devsite-nav-item"> <a href="https://cloud.google.com/docs/industry" track-type="nav" track-metadata-eventdetail="https://cloud.google.com/docs/industry" track-metadata-position="nav - technology-areas" track-metadata-module="tertiary nav" tooltip > <div class="devsite-nav-item-title"> Industry solutions </div> </a> </li> <li class="devsite-nav-item"> <a href="https://cloud.google.com/docs/networking" track-type="nav" track-metadata-eventdetail="https://cloud.google.com/docs/networking" track-metadata-position="nav - technology-areas" track-metadata-module="tertiary nav" tooltip > <div class="devsite-nav-item-title"> Networking </div> </a> </li> <li class="devsite-nav-item"> <a href="https://cloud.google.com/docs/observability" track-type="nav" track-metadata-eventdetail="https://cloud.google.com/docs/observability" track-metadata-position="nav - technology-areas" track-metadata-module="tertiary nav" tooltip > <div class="devsite-nav-item-title"> Observability and monitoring </div> </a> </li> <li class="devsite-nav-item"> <a href="https://cloud.google.com/docs/security" track-type="nav" track-metadata-eventdetail="https://cloud.google.com/docs/security" track-metadata-position="nav - technology-areas" track-metadata-module="tertiary nav" tooltip > <div class="devsite-nav-item-title"> Security </div> </a> </li> <li class="devsite-nav-item"> <a href="https://cloud.google.com/docs/storage" track-type="nav" track-metadata-eventdetail="https://cloud.google.com/docs/storage" track-metadata-position="nav - technology-areas" track-metadata-module="tertiary nav" tooltip > <div class="devsite-nav-item-title"> Storage </div> </a> </li> </ul> </div> </div> </div> </tab> <tab class="devsite-dropdown devsite-clickable "> <a href="https://cloud.google.com/docs/cross-product-overviews" class="devsite-tabs-content gc-analytics-event " track-metadata-eventdetail="https://cloud.google.com/docs/cross-product-overviews" track-type="nav" track-metadata-position="nav - crossproduct" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Cross-product tools" track-name="crossproduct" track-link-column-type="single-column" > Cross-product tools </a> <button aria-haspopup="menu" aria-expanded="false" aria-label="Dropdown menu for Cross-product tools" track-type="nav" track-metadata-eventdetail="https://cloud.google.com/docs/cross-product-overviews" track-metadata-position="nav - crossproduct" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Cross-product tools" track-name="crossproduct" track-link-column-type="single-column" class="devsite-tabs-dropdown-toggle devsite-icon devsite-icon-arrow-drop-down"></button> <div class="devsite-tabs-dropdown" role="menu" aria-label="submenu" hidden> <button class="devsite-tabs-close-button material-icons button-flat gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Close dropdown menu" aria-label="Close dropdown menu" track-type="nav" track-name="close" track-metadata-eventdetail="#" track-metadata-position="nav - crossproduct" track-metadata-module="tertiary nav">close</button> <div class="devsite-tabs-dropdown-content"> <div class="devsite-tabs-dropdown-column "> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-item"> <a href="https://cloud.google.com/docs/access-resources" track-type="nav" track-metadata-eventdetail="https://cloud.google.com/docs/access-resources" track-metadata-position="nav - crossproduct" track-metadata-module="tertiary nav" tooltip > <div class="devsite-nav-item-title"> Access and resources management </div> </a> </li> <li class="devsite-nav-item"> <a href="https://cloud.google.com/docs/costs-usage" track-type="nav" track-metadata-eventdetail="https://cloud.google.com/docs/costs-usage" track-metadata-position="nav - crossproduct" track-metadata-module="tertiary nav" tooltip > <div class="devsite-nav-item-title"> Costs and usage management </div> </a> </li> <li class="devsite-nav-item"> <a href="https://cloud.google.com/docs/devtools" track-type="nav" track-metadata-eventdetail="https://cloud.google.com/docs/devtools" track-metadata-position="nav - crossproduct" track-metadata-module="tertiary nav" tooltip > <div class="devsite-nav-item-title"> Google Cloud SDK, languages, frameworks, and tools </div> </a> </li> <li class="devsite-nav-item"> <a href="https://cloud.google.com/docs/iac" track-type="nav" track-metadata-eventdetail="https://cloud.google.com/docs/iac" track-metadata-position="nav - crossproduct" track-metadata-module="tertiary nav" tooltip > <div class="devsite-nav-item-title"> Infrastructure as code </div> </a> </li> <li class="devsite-nav-item"> <a href="https://cloud.google.com/docs/migration" track-type="nav" track-metadata-eventdetail="https://cloud.google.com/docs/migration" track-metadata-position="nav - crossproduct" track-metadata-module="tertiary nav" tooltip > <div class="devsite-nav-item-title"> Migration </div> </a> </li> </ul> </div> </div> </div> </tab> <tab class="devsite-dropdown devsite-clickable "> <a href="https://cloud.google.com/" class="devsite-tabs-content gc-analytics-event " track-metadata-eventdetail="https://cloud.google.com/" track-type="nav" track-metadata-position="nav - related-sites" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Related sites" track-name="related-sites" track-link-column-type="single-column" > Related sites </a> <button aria-haspopup="menu" aria-expanded="false" aria-label="Dropdown menu for Related sites" track-type="nav" track-metadata-eventdetail="https://cloud.google.com/" track-metadata-position="nav - related-sites" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Related sites" track-name="related-sites" track-link-column-type="single-column" class="devsite-tabs-dropdown-toggle devsite-icon devsite-icon-arrow-drop-down"></button> <div class="devsite-tabs-dropdown" role="menu" aria-label="submenu" hidden> <button class="devsite-tabs-close-button material-icons button-flat gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Close dropdown menu" aria-label="Close dropdown menu" track-type="nav" track-name="close" track-metadata-eventdetail="#" track-metadata-position="nav - related-sites" track-metadata-module="tertiary nav">close</button> <div class="devsite-tabs-dropdown-content"> <div class="devsite-tabs-dropdown-column "> <ul class="devsite-tabs-dropdown-section "> <li class="devsite-nav-item"> <a href="https://cloud.google.com/" track-type="nav" track-metadata-eventdetail="https://cloud.google.com/" track-metadata-position="nav - related-sites" track-metadata-module="tertiary nav" tooltip > <div class="devsite-nav-item-title"> Google Cloud Home </div> </a> </li> <li class="devsite-nav-item"> <a href="https://cloud.google.com/free" track-type="nav" track-metadata-eventdetail="https://cloud.google.com/free" track-metadata-position="nav - related-sites" track-metadata-module="tertiary nav" tooltip > <div class="devsite-nav-item-title"> Free Trial and Free Tier </div> </a> </li> <li class="devsite-nav-item"> <a href="https://cloud.google.com/architecture" track-type="nav" track-metadata-eventdetail="https://cloud.google.com/architecture" track-metadata-position="nav - related-sites" track-metadata-module="tertiary nav" tooltip > <div class="devsite-nav-item-title"> Architecture Center </div> </a> </li> <li class="devsite-nav-item"> <a href="https://cloud.google.com/blog" track-type="nav" track-metadata-eventdetail="https://cloud.google.com/blog" track-metadata-position="nav - related-sites" track-metadata-module="tertiary nav" tooltip > <div class="devsite-nav-item-title"> Blog </div> </a> </li> <li class="devsite-nav-item"> <a href="https://cloud.google.com/contact" track-type="nav" track-metadata-eventdetail="https://cloud.google.com/contact" track-metadata-position="nav - related-sites" track-metadata-module="tertiary nav" tooltip > <div class="devsite-nav-item-title"> Contact Sales </div> </a> </li> <li class="devsite-nav-item"> <a href="https://cloud.google.com/developers" track-type="nav" track-metadata-eventdetail="https://cloud.google.com/developers" track-metadata-position="nav - related-sites" track-metadata-module="tertiary nav" tooltip > <div class="devsite-nav-item-title"> Google Cloud Developer Center </div> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/" track-type="nav" track-metadata-eventdetail="https://developers.google.com/" track-metadata-position="nav - related-sites" track-metadata-module="tertiary nav" tooltip > <div class="devsite-nav-item-title"> Google Developer Center </div> </a> </li> <li class="devsite-nav-item"> <a href="https://console.cloud.google.com/marketplace" track-type="nav" track-metadata-eventdetail="https://console.cloud.google.com/marketplace" track-metadata-position="nav - related-sites" track-metadata-module="tertiary nav" tooltip > <div class="devsite-nav-item-title"> Google Cloud Marketplace </div> </a> </li> <li class="devsite-nav-item"> <a href="https://cloud.google.com/marketplace/docs" track-type="nav" track-metadata-eventdetail="https://cloud.google.com/marketplace/docs" track-metadata-position="nav - related-sites" track-metadata-module="tertiary nav" tooltip > <div class="devsite-nav-item-title"> Google Cloud Marketplace Documentation </div> </a> </li> <li class="devsite-nav-item"> <a href="https://www.cloudskillsboost.google/paths" track-type="nav" track-metadata-eventdetail="https://www.cloudskillsboost.google/paths" track-metadata-position="nav - related-sites" track-metadata-module="tertiary nav" tooltip > <div class="devsite-nav-item-title"> Google Cloud Skills Boost </div> </a> </li> <li class="devsite-nav-item"> <a href="https://cloud.google.com/solutions" track-type="nav" track-metadata-eventdetail="https://cloud.google.com/solutions" track-metadata-position="nav - related-sites" track-metadata-module="tertiary nav" tooltip > <div class="devsite-nav-item-title"> Google Cloud Solution Center </div> </a> </li> <li class="devsite-nav-item"> <a href="https://cloud.google.com/support-hub" track-type="nav" track-metadata-eventdetail="https://cloud.google.com/support-hub" track-metadata-position="nav - related-sites" track-metadata-module="tertiary nav" tooltip > <div class="devsite-nav-item-title"> Google Cloud Support </div> </a> </li> <li class="devsite-nav-item"> <a href="https://www.youtube.com/@googlecloudtech" track-type="nav" track-metadata-eventdetail="https://www.youtube.com/@googlecloudtech" track-metadata-position="nav - related-sites" track-metadata-module="tertiary nav" tooltip > <div class="devsite-nav-item-title"> Google Cloud Tech Youtube Channel </div> </a> </li> </ul> </div> </div> </div> </tab> </nav> </cloudx-tabs-nav> </div> <devsite-search enable-signin enable-search enable-suggestions project-name="Pub/Sub Documentation" tenant-name="Google Cloud" project-scope="/pubsub/docs" url-scoped="https://cloud.google.com/s/results/pubsub/docs" > <form class="devsite-search-form" action="https://cloud.google.com/s/results" method="GET"> <div class="devsite-search-container"> <button type="button" search-open class="devsite-search-button devsite-header-icon-button button-flat material-icons" aria-label="Open search"></button> <div class="devsite-searchbox"> <input aria-activedescendant="" aria-autocomplete="list" aria-label="Search" aria-expanded="false" aria-haspopup="listbox" autocomplete="off" class="devsite-search-field devsite-search-query" name="q" placeholder="Search" role="combobox" type="text" value="" > <div class="devsite-search-image material-icons" aria-hidden="true"> </div> <div class="devsite-search-shortcut-icon-container" aria-hidden="true"> <kbd class="devsite-search-shortcut-icon">/</kbd> </div> </div> </div> </form> <button type="button" search-close class="devsite-search-button devsite-header-icon-button button-flat material-icons" aria-label="Close search"></button> </devsite-search> </div> <devsite-language-selector> <ul role="presentation"> <li role="presentation"> <a role="menuitem" lang="en" >English</a> </li> <li role="presentation"> <a role="menuitem" lang="de" >Deutsch</a> </li> <li role="presentation"> <a role="menuitem" lang="es_419" >Español – América Latina</a> </li> <li role="presentation"> <a role="menuitem" lang="fr" >Français</a> </li> <li role="presentation"> <a role="menuitem" lang="id" >Indonesia</a> </li> <li role="presentation"> <a role="menuitem" lang="it" >Italiano</a> </li> <li role="presentation"> <a role="menuitem" lang="pt_br" >Português – Brasil</a> </li> <li role="presentation"> <a role="menuitem" lang="zh_cn" >中文 – 简体</a> </li> <li role="presentation"> <a role="menuitem" lang="ja" >日本語</a> </li> <li role="presentation"> <a role="menuitem" lang="ko" >한국어</a> </li> </ul> </devsite-language-selector> <devsite-user enable-profiles fp-auth id="devsite-user"> <span class="button devsite-top-button" aria-hidden="true" visually-hidden>Sign in</span> </devsite-user> </div> </div> </div> <div class="devsite-collapsible-section "> <div class="devsite-header-background"> <div class="devsite-product-id-row" hidden> <div class="devsite-product-description-row"> </div> </div> <div class="devsite-doc-set-nav-row"> <ul class="devsite-breadcrumb-list" > <li class="devsite-breadcrumb-item "> <a href="https://cloud.google.com/pubsub" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Lower Header" data-value="1" track-type="globalNav" track-name="breadcrumb" track-metadata-position="1" track-metadata-eventdetail="Pub/Sub" > Pub/Sub </a> </li> </ul> <cloudx-tabs-nav class="lower-tabs"> <nav class="devsite-tabs-wrapper" aria-label="Lower tabs"> <tab > <a href="https://cloud.google.com/pubsub/docs" class="devsite-tabs-content gc-analytics-event " track-metadata-eventdetail="https://cloud.google.com/pubsub/docs" track-type="nav" track-metadata-position="nav - overview" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Overview" track-name="overview" > Overview </a> </tab> <tab > <a href="https://cloud.google.com/pubsub/docs/overview" class="devsite-tabs-content gc-analytics-event " track-metadata-eventdetail="https://cloud.google.com/pubsub/docs/overview" track-type="nav" track-metadata-position="nav - guides" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Guides" track-name="guides" > Guides </a> </tab> <tab > <a href="https://cloud.google.com/pubsub/docs/apis" class="devsite-tabs-content gc-analytics-event " track-metadata-eventdetail="https://cloud.google.com/pubsub/docs/apis" track-type="nav" track-metadata-position="nav - reference" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Reference" track-name="reference" > Reference </a> </tab> <tab > <a href="https://cloud.google.com/pubsub/docs/samples" class="devsite-tabs-content gc-analytics-event " track-metadata-eventdetail="https://cloud.google.com/pubsub/docs/samples" track-type="nav" track-metadata-position="nav - samples" track-metadata-module="primary nav" data-category="Site-Wide Custom Events" data-label="Tab: Samples" track-name="samples" > Samples </a> </tab> <tab class="devsite-active"> <a href="https://cloud.google.com/pubsub/docs/media" class="devsite-tabs-content gc-analytics-event " track-metadata-eventdetail="https://cloud.google.com/pubsub/docs/media" track-type="nav" track-metadata-position="nav - resources" track-metadata-module="primary nav" aria-label="Resources, selected" data-category="Site-Wide Custom Events" data-label="Tab: Resources" track-name="resources" > Resources </a> </tab> </nav> </cloudx-tabs-nav> <div class="devsite-product-button-row"> <a href="https://cloud.google.com/contact" class="cta-button-secondary button " track-name="sales" track-metadata-eventDetail="nav" track-metadata-position="nav" data-overflow="devsite-tabs-wrapper" track-type="contact" data-overflow-wrapper="tab" data-overflow-container="left" >Contact Us</a> <a href="//console.cloud.google.com/freetrial" class="cloud-free-trial-button cta-button-primary button-primary button cloud-button cloud-button--primary " data-overflow-container="right" referrerpolicy="no-referrer-when-downgrade" data-overflow="devsite-top-logo-row" track-name="gcpCta" track-metadata-position="nav" data-overflow-class="devsite-header-link devsite-top-button button cloud-free-trial-button cloud-free-trial-enabled cloud-button cloud-button--primary" track-type="freeTrial" track-metadata-eventDetail="nav" >Start free</a> </div> </div> </div> </div> </div> </devsite-header> <devsite-book-nav scrollbars > <div class="devsite-book-nav-filter" > <span class="filter-list-icon material-icons" aria-hidden="true"></span> <input type="text" placeholder="Filter" aria-label="Type to filter" role="searchbox"> <span class="filter-clear-button hidden" data-title="Clear filter" aria-label="Clear filter" role="button" tabindex="0"></span> </div> <nav class="devsite-book-nav devsite-nav nocontent" aria-label="Side menu"> <div class="devsite-mobile-header"> <button type="button" id="devsite-close-nav" class="devsite-header-icon-button button-flat material-icons gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Close navigation" aria-label="Close navigation"> </button> <div class="devsite-product-name-wrapper"> <a href="/" class="devsite-site-logo-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Site logo" track-type="globalNav" track-name="googleCloud" track-metadata-position="nav" track-metadata-eventDetail="nav"> <picture> <img src="https://www.gstatic.com/devrel-devsite/prod/v38a693baeb774512feb42f10aac8f755d8791ed41119b5be7a531f8e16f8279f/cloud/images/cloud-logo.svg" class="devsite-site-logo" alt="Google Cloud"> </picture> </a> <span class="devsite-product-name"> <ul class="devsite-breadcrumb-list" > <li class="devsite-breadcrumb-item devsite-has-google-wordmark"> </li> </ul> </span> </div> </div> <div class="devsite-book-nav-wrapper"> <div class="devsite-mobile-nav-top"> <ul class="devsite-nav-list"> <li class="devsite-nav-item"> <a href="/docs" class="devsite-nav-title gc-analytics-event devsite-nav-active" data-category="Site-Wide Custom Events" data-label="Tab: Documentation" track-name="docs-home" track-link-column-type="single-column" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Documentation" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Documentation </span> </a> <ul class="devsite-nav-responsive-tabs"> <li class="devsite-nav-item"> <a href="/pubsub/docs" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Overview" track-name="overview" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Overview" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Overview </span> </a> </li> <li class="devsite-nav-item"> <a href="/pubsub/docs/overview" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Guides" track-name="guides" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Guides" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Guides </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/pubsub/docs/apis" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Reference" track-name="reference" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Reference" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Reference </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/pubsub/docs/samples" class="devsite-nav-title gc-analytics-event devsite-nav-has-children " data-category="Site-Wide Custom Events" data-label="Tab: Samples" track-name="samples" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Samples" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Samples </span> <span class="devsite-nav-icon material-icons" data-icon="forward" > </span> </a> </li> <li class="devsite-nav-item"> <a href="/pubsub/docs/media" class="devsite-nav-title gc-analytics-event devsite-nav-has-children devsite-nav-active" data-category="Site-Wide Custom Events" data-label="Tab: Resources" track-name="resources" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Resources" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip menu="_book"> Resources </span> <span class="devsite-nav-icon material-icons" data-icon="forward" menu="_book"> </span> </a> </li> </ul> </li> <li class="devsite-nav-item"> <a href="/docs/tech-area-overviews" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Technology areas" track-name="technology-areas" track-link-column-type="single-column" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Technology areas" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Technology areas </span> </a> <ul class="devsite-nav-responsive-tabs devsite-nav-has-menu "> <li class="devsite-nav-item"> <span class="devsite-nav-title" tooltip data-category="Site-Wide Custom Events" data-label="Tab: Technology areas" track-name="technology-areas" track-link-column-type="single-column" > <span class="devsite-nav-text" tooltip menu="Technology areas"> More </span> <span class="devsite-nav-icon material-icons" data-icon="forward" menu="Technology areas"> </span> </span> </li> </ul> </li> <li class="devsite-nav-item"> <a href="/docs/cross-product-overviews" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Cross-product tools" track-name="crossproduct" track-link-column-type="single-column" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Cross-product tools" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Cross-product tools </span> </a> <ul class="devsite-nav-responsive-tabs devsite-nav-has-menu "> <li class="devsite-nav-item"> <span class="devsite-nav-title" tooltip data-category="Site-Wide Custom Events" data-label="Tab: Cross-product tools" track-name="crossproduct" track-link-column-type="single-column" > <span class="devsite-nav-text" tooltip menu="Cross-product tools"> More </span> <span class="devsite-nav-icon material-icons" data-icon="forward" menu="Cross-product tools"> </span> </span> </li> </ul> </li> <li class="devsite-nav-item"> <a href="/" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Tab: Related sites" track-name="related-sites" track-link-column-type="single-column" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Related sites" track-type="globalNav" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Related sites </span> </a> <ul class="devsite-nav-responsive-tabs devsite-nav-has-menu "> <li class="devsite-nav-item"> <span class="devsite-nav-title" tooltip data-category="Site-Wide Custom Events" data-label="Tab: Related sites" track-name="related-sites" track-link-column-type="single-column" > <span class="devsite-nav-text" tooltip menu="Related sites"> More </span> <span class="devsite-nav-icon material-icons" data-icon="forward" menu="Related sites"> </span> </span> </li> </ul> </li> <li class="devsite-nav-item"> <a href="//console.cloud.google.com/" class="devsite-nav-title gc-analytics-event " referrerpolicy="no-referrer-when-downgrade" track-metadata-position="nav" track-name="console" track-type="globalNav" track-metadata-eventDetail="nav" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Console" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Console </span> </a> </li> <li class="devsite-nav-item"> <a href="/contact" class="cta-button-secondary button" track-name="sales" track-metadata-eventDetail="nav" track-metadata-position="nav" data-overflow="devsite-tabs-wrapper" track-type="contact" data-overflow-wrapper="tab" data-overflow-container="left" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Contact Us" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Contact Us </span> </a> </li> <li class="devsite-nav-item"> <a href="//console.cloud.google.com/freetrial" class="cloud-free-trial-button cta-button-primary button-primary button cloud-button cloud-button--primary" data-overflow-container="right" referrerpolicy="no-referrer-when-downgrade" data-overflow="devsite-top-logo-row" track-name="gcpCta" track-metadata-position="nav" data-overflow-class="devsite-header-link devsite-top-button button cloud-free-trial-button cloud-free-trial-enabled cloud-button cloud-button--primary" track-type="freeTrial" track-metadata-eventDetail="nav" data-category="Site-Wide Custom Events" data-label="Responsive Tab: Start free" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Start free </span> </a> </li> </ul> </div> <div class="devsite-mobile-nav-bottom"> <ul class="devsite-nav-list" menu="_book"> <li class="devsite-nav-item"><a href="/pubsub/docs/media" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /pubsub/docs/media" track-type="bookNav" track-name="click" track-metadata-eventdetail="/pubsub/docs/media" ><span class="devsite-nav-text" tooltip>Articles, videos, and podcasts</span></a></li> <li class="devsite-nav-item"><a href="/pubsub/pricing" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /pubsub/pricing" track-type="bookNav" track-name="click" track-metadata-eventdetail="/pubsub/pricing" ><span class="devsite-nav-text" tooltip>Pricing</span></a></li> <li class="devsite-nav-item"><a href="/pubsub/quotas" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /pubsub/quotas" track-type="bookNav" track-name="click" track-metadata-eventdetail="/pubsub/quotas" ><span class="devsite-nav-text" tooltip>Quotas and limits</span></a></li> <li class="devsite-nav-item"><a href="/pubsub/docs/release-notes" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /pubsub/docs/release-notes" track-type="bookNav" track-name="click" track-metadata-eventdetail="/pubsub/docs/release-notes" ><span class="devsite-nav-text" tooltip>Release notes</span></a></li> <li class="devsite-nav-item"><a href="/pubsub/sla" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /pubsub/sla" track-type="bookNav" track-name="click" track-metadata-eventdetail="/pubsub/sla" ><span class="devsite-nav-text" tooltip>Service level agreement</span></a></li> <li class="devsite-nav-item"><a href="/pubsub/docs/getting-support" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /pubsub/docs/getting-support" track-type="bookNav" track-name="click" track-metadata-eventdetail="/pubsub/docs/getting-support" ><span class="devsite-nav-text" tooltip>Getting support</span></a></li> <li class="devsite-nav-item"><a href="/pubsub/docs/billing-questions" class="devsite-nav-title gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Book nav link, pathname: /pubsub/docs/billing-questions" track-type="bookNav" track-name="click" track-metadata-eventdetail="/pubsub/docs/billing-questions" ><span class="devsite-nav-text" tooltip>Billing questions</span></a></li> </ul> <ul class="devsite-nav-list" menu="Technology areas" aria-label="Side menu" hidden> <li class="devsite-nav-item"> <a href="/docs/ai-ml" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: AI and ML" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > AI and ML </span> </a> </li> <li class="devsite-nav-item"> <a href="/docs/application-development" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Application development" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Application development </span> </a> </li> <li class="devsite-nav-item"> <a href="/docs/application-hosting" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Application hosting" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Application hosting </span> </a> </li> <li class="devsite-nav-item"> <a href="/docs/compute-area" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Compute" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Compute </span> </a> </li> <li class="devsite-nav-item"> <a href="/docs/data" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Data analytics and pipelines" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Data analytics and pipelines </span> </a> </li> <li class="devsite-nav-item"> <a href="/docs/databases" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Databases" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Databases </span> </a> </li> <li class="devsite-nav-item"> <a href="/docs/dhm-cloud" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Distributed, hybrid, and multicloud" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Distributed, hybrid, and multicloud </span> </a> </li> <li class="devsite-nav-item"> <a href="/docs/generative-ai" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Generative AI" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Generative AI </span> </a> </li> <li class="devsite-nav-item"> <a href="/docs/industry" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Industry solutions" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Industry solutions </span> </a> </li> <li class="devsite-nav-item"> <a href="/docs/networking" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Networking" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Networking </span> </a> </li> <li class="devsite-nav-item"> <a href="/docs/observability" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Observability and monitoring" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Observability and monitoring </span> </a> </li> <li class="devsite-nav-item"> <a href="/docs/security" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Security" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Security </span> </a> </li> <li class="devsite-nav-item"> <a href="/docs/storage" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Storage" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Storage </span> </a> </li> </ul> <ul class="devsite-nav-list" menu="Cross-product tools" aria-label="Side menu" hidden> <li class="devsite-nav-item"> <a href="/docs/access-resources" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Access and resources management" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Access and resources management </span> </a> </li> <li class="devsite-nav-item"> <a href="/docs/costs-usage" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Costs and usage management" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Costs and usage management </span> </a> </li> <li class="devsite-nav-item"> <a href="/docs/devtools" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Google Cloud SDK, languages, frameworks, and tools" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Google Cloud SDK, languages, frameworks, and tools </span> </a> </li> <li class="devsite-nav-item"> <a href="/docs/iac" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Infrastructure as code" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Infrastructure as code </span> </a> </li> <li class="devsite-nav-item"> <a href="/docs/migration" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Migration" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Migration </span> </a> </li> </ul> <ul class="devsite-nav-list" menu="Related sites" aria-label="Side menu" hidden> <li class="devsite-nav-item"> <a href="/" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Google Cloud Home" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Google Cloud Home </span> </a> </li> <li class="devsite-nav-item"> <a href="/free" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Free Trial and Free Tier" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Free Trial and Free Tier </span> </a> </li> <li class="devsite-nav-item"> <a href="/architecture" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Architecture Center" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Architecture Center </span> </a> </li> <li class="devsite-nav-item"> <a href="https://cloud.google.com/blog" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Blog" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Blog </span> </a> </li> <li class="devsite-nav-item"> <a href="/contact" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Contact Sales" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Contact Sales </span> </a> </li> <li class="devsite-nav-item"> <a href="/developers" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Google Cloud Developer Center" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Google Cloud Developer Center </span> </a> </li> <li class="devsite-nav-item"> <a href="https://developers.google.com/" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Google Developer Center" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Google Developer Center </span> </a> </li> <li class="devsite-nav-item"> <a href="https://console.cloud.google.com/marketplace" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Google Cloud Marketplace" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Google Cloud Marketplace </span> </a> </li> <li class="devsite-nav-item"> <a href="/marketplace/docs" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Google Cloud Marketplace Documentation" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Google Cloud Marketplace Documentation </span> </a> </li> <li class="devsite-nav-item"> <a href="https://www.cloudskillsboost.google/paths" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Google Cloud Skills Boost" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Google Cloud Skills Boost </span> </a> </li> <li class="devsite-nav-item"> <a href="/solutions" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Google Cloud Solution Center" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Google Cloud Solution Center </span> </a> </li> <li class="devsite-nav-item"> <a href="/support-hub" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Google Cloud Support" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Google Cloud Support </span> </a> </li> <li class="devsite-nav-item"> <a href="https://www.youtube.com/@googlecloudtech" class="devsite-nav-title gc-analytics-event " data-category="Site-Wide Custom Events" data-label="Responsive Tab: Google Cloud Tech Youtube Channel" track-type="navMenu" track-metadata-eventDetail="globalMenu" track-metadata-position="nav"> <span class="devsite-nav-text" tooltip > Google Cloud Tech Youtube Channel </span> </a> </li> </ul> </div> </div> </nav> </devsite-book-nav> <section id="gc-wrapper"> <main role="main" id="main-content" class="devsite-main-content" has-book-nav has-sidebar > <div class="devsite-sidebar"> <div class="devsite-sidebar-content"> <devsite-toc class="devsite-nav" role="navigation" aria-label="On this page" depth="2" scrollbars ></devsite-toc> <devsite-recommendations-sidebar class="nocontent devsite-nav"> </devsite-recommendations-sidebar> </div> </div> <devsite-content> <article class="devsite-article"> <div class="devsite-article-meta nocontent" role="navigation"> <ul class="devsite-breadcrumb-list" aria-label="Breadcrumb"> <li class="devsite-breadcrumb-item "> <a href="https://cloud.google.com/" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Breadcrumbs" data-value="1" track-type="globalNav" track-name="breadcrumb" track-metadata-position="1" track-metadata-eventdetail="Google Cloud" > Home </a> </li> <li class="devsite-breadcrumb-item "> <div class="devsite-breadcrumb-guillemet material-icons" aria-hidden="true"></div> <a href="https://cloud.google.com/pubsub" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Breadcrumbs" data-value="2" track-type="globalNav" track-name="breadcrumb" track-metadata-position="2" track-metadata-eventdetail="Pub/Sub" > Pub/Sub </a> </li> <li class="devsite-breadcrumb-item "> <div class="devsite-breadcrumb-guillemet material-icons" aria-hidden="true"></div> <a href="https://cloud.google.com/pubsub/docs" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Breadcrumbs" data-value="3" track-type="globalNav" track-name="breadcrumb" track-metadata-position="3" track-metadata-eventdetail="Pub/Sub Documentation" > Documentation </a> </li> <li class="devsite-breadcrumb-item "> <div class="devsite-breadcrumb-guillemet material-icons" aria-hidden="true"></div> <a href="https://cloud.google.com/pubsub/docs/media" class="devsite-breadcrumb-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Breadcrumbs" data-value="4" track-type="globalNav" track-name="breadcrumb" track-metadata-position="4" track-metadata-eventdetail="" > Resources </a> </li> </ul> <devsite-thumb-rating position="header"> </devsite-thumb-rating> </div> <devsite-feedback position="header" project-name="Pub/Sub Documentation" product-id="96707" bucket="documentation" context="" version="t-devsite-webserver-20250211-r00-rc00.466928320959134316" data-label="Send Feedback Button" track-type="feedback" track-name="sendFeedbackLink" track-metadata-position="header" class="nocontent" project-feedback-url="https://issuetracker.google.com/issues/new?component=187173&template=0" project-icon="https://www.gstatic.com/devrel-devsite/prod/v38a693baeb774512feb42f10aac8f755d8791ed41119b5be7a531f8e16f8279f/cloud/images/favicons/onecloud/super_cloud.png" > <button> Send feedback </button> </devsite-feedback> <h1 class="devsite-page-title" tabindex="-1"> Pub/Sub quotas and limits </h1> <devsite-feature-tooltip ack-key="AckCollectionsBookmarkTooltipDismiss" analytics-category="Site-Wide Custom Events" analytics-action-show="Callout Profile displayed" analytics-action-close="Callout Profile dismissed" analytics-label="Create Collection Callout" class="devsite-page-bookmark-tooltip nocontent" dismiss-button="true" id="devsite-collections-dropdown" dismiss-button-text="Dismiss" close-button-text="Got it"> <devsite-bookmark></devsite-bookmark> <span slot="popout-heading"> Stay organized with collections </span> <span slot="popout-contents"> Save and categorize content based on your preferences. </span> </devsite-feature-tooltip> <div class="devsite-page-title-meta"><devsite-view-release-notes></devsite-view-release-notes></div> <devsite-toc class="devsite-nav" depth="2" devsite-toc-embedded > </devsite-toc> <div class="devsite-article-body clearfix "> <p>Google Cloud uses quotas to restrict how much of a particular shared Google Cloud resource that you can use. Each quota represents a specific countable resource, such as API calls to a particular service, the number of bytes sent to a particular service, or the number of streaming connections used concurrently by your project.</p> <p>Many services also have limits that are unrelated to the quota system. These are fixed constraints, such as maximum message sizes or the number of Pub/Sub resources you can create in a project, which cannot be increased or decreased.</p> <aside class="key-point"><strong>Key Point:</strong><span> This document provides information about quotas and resource limits for Pub/Sub. You can request increases to quotas, but limits cannot be adjusted. For more information, see <a href="/docs/quota">Working with quotas</a>.</span></aside> <h2 id="viewing_quota_usage_and_managing_quota_limits" data-text="View and manage quotas" tabindex="-1">View and manage quotas</h2> <p>For a given project, you can use the <a href="https://console.cloud.google.com/iam-admin/quotas?project=_&service=pubsub.googleapis.com">IAM & admin quotas dashboard</a> to view current quota limits and usage. You can also use this dashboard to do the following:</p> <ul> <li>Reduce your quota limits</li> <li>Initiate a process to apply for higher quota limits</li> </ul> <p>For more information about monitoring and alerting on your quota usage, see <a href="/pubsub/docs/monitoring#quota">Monitoring</a>.</p> <h2 id="quota_usage_attribution" data-text="Quota usage attribution" tabindex="-1">Quota usage attribution</h2> <p>For push subscriber throughput, quota usage is charged against the project that contains the push subscription. This is the project that appears in the name of the subscription.</p> <p>For all other quotas, usage is charged against the project associated with the credentials specified in the request. The quota usage is not charged against the project that contains the requested resource.</p> <p>For example: If a service account in project A sends a publish request to publish to a topic in project B, the quota is charged to project A. In some cases, you might want quota usage to be charged against another project. You can use the <code translate="no" dir="ltr">X-Goog-User-Project</code> system parameter to change the project for quota attribution. For more information about <code translate="no" dir="ltr">X-Goog-User-Project</code>, see <a href="/apis/docs/system-parameters#definitions">System parameters</a>.</p> <p>You can use gcloud CLI to set the project for quota attribution for a specific request. The gcloud CLI sends the <code translate="no" dir="ltr">X-Goog-User-Project</code> request header.</p> <p>You must have the <code translate="no" dir="ltr">roles/serviceusage.serviceUsageConsumer</code> role or a custom role with the <code translate="no" dir="ltr">serviceusage.services.use</code> permission on the project that you are going to use for quota attribution.</p> <p>The following example shows how to get a list of subscriptions in the project <var translate="no">RESOURCE_PROJECT</var> while charging the <em>Administrator operations</em> quota against the project <var translate="no">QUOTA_PROJECT</var>. Run the following command in your Google Cloud CLI terminal:</p> <div></div><devsite-code><pre class="devsite-click-to-copy" translate="no" dir="ltr" is-upgraded syntax="Bash"><code translate="no" dir="ltr">gcloud<span class="devsite-syntax-w"> </span>pubsub<span class="devsite-syntax-w"> </span>subscriptions<span class="devsite-syntax-w"> </span>list<span class="devsite-syntax-w"> </span>--project<span class="devsite-syntax-o">=</span><var translate="no"> RESOURCE_PROJECT</var><span class="devsite-syntax-w"> </span>--billing-project<span class="devsite-syntax-o">=</span><var translate="no"> QUOTA_PROJECT</var> </code></pre></devsite-code> <p>Replace <code translate="no" dir="ltr"><var translate="no">QUOTA_PROJECT</var></code> with the ID of the Google Cloud project against which you want to charge quota.</p> <p>Note that in Pub/Sub, the billed project is always the one that contains the resource. You can change the project only for quota attribution.</p> <h2 id="quotas" data-text="Pub/Sub quotas" tabindex="-1">Pub/Sub quotas</h2> <p>The quotas listed in the following table can be viewed and edited on a per-project basis in the <a href="https://console.cloud.google.com/apis/api/pubsub.googleapis.com/quotas?project=_">APIs and services quotas dashboard</a>.</p> <p>Regional quotas are divided into 3 types: <ul> <li>Large regions: <code translate="no" dir="ltr">europe-west1</code>, <code translate="no" dir="ltr">europe-west4</code>, <code translate="no" dir="ltr">us-central1</code>, <code translate="no" dir="ltr">us-east1</code>, <code translate="no" dir="ltr">us-east4</code>, <code translate="no" dir="ltr">us-west1</code>, <code translate="no" dir="ltr">us-west2</code></li> <li>Medium regions: <code translate="no" dir="ltr">asia-east1</code>, <code translate="no" dir="ltr">asia-northeast1</code>, <code translate="no" dir="ltr">asia-southeast1</code>, <code translate="no" dir="ltr">europe-west2</code>, <code translate="no" dir="ltr">europe-west3</code></li> <li>Small regions: all other regions</li> </ul></p> <p>Exactly-once delivery quotas are region specific. Check the details for each region in the following table.</p> <aside class="note"><strong>Note: </strong>For all throughput quotas, usage is measured in <a href="#throughput_quota_units">1 kB units</a>.</aside> <table style="width:100%"> <tr> <th>Quota</th> <th>Default quota limit</th> <th>Description</th> </tr> <tr> <td>Publisher throughput per region</td> <td> <ul> <li>240,000,000 kB per minute (4 GB/s) in large regions</li> <li>48,000,000 kB per minute (800 MB/s) in medium regions</li> <li>12,000,000 kB per minute (200 MB/s) in small regions</li> </ul> </td> <td> <p><code translate="no" dir="ltr">pubsub.googleapis.com/regionalpublisher</code></p> <p>Quota usage is based on the size of the published <code translate="no" dir="ltr">PubsubMessage</code>s:</p> <ul> <li><a href="/pubsub/docs/reference/rest/v1/PubsubMessage">PubsubMessage</a> (REST)</li> <li><a href="/pubsub/docs/reference/rpc/google.pubsub.v1#google.pubsub.v1.PubsubMessage">PubsubMessage</a> (RPC)</li> </ul> <p>Note that multiple messages can be included in a single publish request, and there is no additional quota charge per message.</p> </td> </tr> <tr> <td>Pull subscriber throughput per region</td> <td> <ul> <li>240,000,000 kB per minute (4 GB/s) in large regions</li> <li>48,000,000 kB per minute (800 MB/s) in medium regions</li> <li>24,000,000 kB per minute (400 MB/s) in small regions</li> </ul> </td> <td> <p><code translate="no" dir="ltr">pubsub.googleapis.com/regionalsubscriber</code></p> <p>Quota usage is based on the size of the returned <code translate="no" dir="ltr">PubsubMessage</code>s:</p> <ul> <li><a href="/pubsub/docs/reference/rest/v1/PubsubMessage">PubsubMessage</a> (REST)</li> <li><a href="/pubsub/docs/reference/rpc/google.pubsub.v1#google.pubsub.v1.PubsubMessage">PubsubMessage</a> (RPC)</li> </ul> </td> </tr> <tr> <td>Acknowledger throughput per region</td> <td> <ul> <li>240,000,000 kB per minute (4 GB/s) in large regions</li> <li>48,000,000 kB per minute (800 MB/s) in medium regions</li> <li>24,000,000 kB per minute (400 MB/s) in small regions</li> </ul> </td> <td> <p><code translate="no" dir="ltr">pubsub.googleapis.com/regionalacknowledger</code></p> <p>Quota usage is based on the size of <code translate="no" dir="ltr">Acknowledge</code> and <code translate="no" dir="ltr">ModifyAckDeadline</code> requests:</p> <ul> <li><a href="/pubsub/docs/reference/rpc/google.pubsub.v1#acknowledgerequest">AcknowledgeRequest</a> (RPC)</li> <li><a href="/pubsub/docs/reference/rpc/google.pubsub.v1#modifyackdeadlinerequest">ModifyAckDeadlineRequest</a> (RPC)</li> </ul> </td> </tr> <tr> <td>Push subscriptions throughput per region</td> <td> <ul> <li>26,400,000 kB per minute (440 MB/s) in large regions</li> <li>8,400,000 kB per minute (140 MB/s) in medium regions</li> <li>2,400,000 kB per minute (40 MB/s) in small regions</li> </ul> </td> <td> <p><code translate="no" dir="ltr">pubsub.googleapis.com/regionalpushsubscriber</code></p> <p>For <a href="/pubsub/docs/push">push delivery requests</a> made to the push endpoint, quota usage is based on the size of the <code translate="no" dir="ltr">PubsubMessage</code>s sent to the push endpoint.</p> </td> </tr> <tr> <td><a href="/pubsub/docs/subscription-overview#push_pull">BigQuery subscriptions</a> throughput per region</td> <td> <ul> <li>240,000,000 kB per minute (4 GB/s) in large regions</li> <li>48,000,000 kB per minute (800 MB/s) in medium regions</li> <li>12,000,000 kB per minute (200 MB/s) in small regions</li> </ul> </td> <td> <p><code translate="no" dir="ltr">pubsub.googleapis.com/regionalpushbigquerysubscriber</code></p> <p>For requests made to BigQuery, quota usage is based on the size of the <code translate="no" dir="ltr">PubsubMessage</code>s sent to BigQuery.</p> </td> </tr> <tr> <td><a href="/pubsub/docs/subscription-overview#push_pull">Cloud Storage subscriptions</a> throughput per region</td> <td> <ul> <li>240,000,000 kB per minute (4 GB/s) in large regions</li> <li>48,000,000 kB per minute (800 MB/s) in medium regions</li> <li>12,000,000 kB per minute (200 MB/s) in small regions</li> </ul> </td> <td> <p><code translate="no" dir="ltr">pubsub.googleapis.com/regionalpushcloudstoragesubscriber</code></p> <p>For requests made to Cloud Storage, quota usage is based on the size of the <code translate="no" dir="ltr">PubsubMessage</code>s sent to Cloud Storage.</p> </td> </tr> <tr> <td>StreamingPull subscriber throughput per region</td> <td> <ul> <li>240,000,000 kB per minute (4 GB/s) in large regions</li> <li>48,000,000 kB per minute (800 MB/s) in medium regions</li> <li>24,000,000 kB per minute (400 MB/s) in small regions</li> </ul> </td> <td> <p><code translate="no" dir="ltr">pubsub.googleapis.com/regionalstreamingpullsubscriber</code></p> <p>Quota usage is based on the size of the <code translate="no" dir="ltr">PubsubMessage</code>s streamed to the subscriber:</p> <ul> <li><a href="/pubsub/docs/reference/rest/v1/PubsubMessage">PubsubMessage</a> (REST)</li> <li><a href="/pubsub/docs/reference/rpc/google.pubsub.v1#google.pubsub.v1.PubsubMessage">PubsubMessage</a> (RPC)</li> </ul> <p>Note that Client Libraries use <a href="/pubsub/docs/pull#streamingpull">StreamingPull</a> operations where possible.</p> </td> </tr> <tr> <td>Number of open StreamingPull connections per region</td> <td> <ul> <li>72,000 open connections at a time in large regions</li> <li>48,000 open connections at a time in medium regions</li> <li>24,000 open connections at a time in small regions</li> </ul> </td> <td> <p><code translate="no" dir="ltr">pubsub.googleapis.com/regionalstreamingpullconnections</code></p> <p>The number of open StreamingPull connections at any given time. See <a href="/pubsub/docs/pull#streamingpull">StreamingPull</a>.</p> <aside class="note"> <strong>Warning:</strong> A high rate of failed requests to open StreamingPull connections might exhaust this quota. </aside> </td> </tr> <tr> <td>Administrator operations</td> <td>6,000 per minute (100 ops/s)</td> <td> <p><code translate="no" dir="ltr">pubsub.googleapis.com/administrator</code></p> <p>Each administrator operation, such as <a href="/pubsub/docs/reference/rpc/google.pubsub.v1#google.pubsub.v1.GetTopicRequest">GetTopicRequest</a>, charges one unit against this quota.</p> <p><code translate="no" dir="ltr">Get*</code>, <code translate="no" dir="ltr">List*</code>, <code translate="no" dir="ltr">Create*</code>, <code translate="no" dir="ltr">Delete*</code>, <code translate="no" dir="ltr">Update*</code>, <code translate="no" dir="ltr">ModifyPushConfig</code>, <code translate="no" dir="ltr">SetIamPolicy</code>, <code translate="no" dir="ltr">GetIamPolicy</code>, <code translate="no" dir="ltr">TestIamPermissions</code>, <code translate="no" dir="ltr">ValidateSchema</code>, <code translate="no" dir="ltr">ValidateMessage</code>,<code translate="no" dir="ltr">CommitSchema</code>,<code translate="no" dir="ltr">RollbackSchema</code>, <code translate="no" dir="ltr">DeleteSchemaRevision</code>, <code translate="no" dir="ltr">ListSchemaRevisions</code>, and <code translate="no" dir="ltr">DetachSubscription</code> are administrator operations.</p> <aside class="note"> <strong>Note:</strong> Under almost all circumstances, it is not necessary to increase the quota for administrator operations. Requests are not typically granted. For more information, see <a href="/pubsub/docs/troubleshooting#using_excessive_administrative_operations">Using excessive administrator operations</a>.</aside> </td> </tr> <tr> <td>Number of messages consumed from subscriptions with <a href="/pubsub/docs/exactly-once-delivery?">exactly-once delivery</a> enabled per region</td> <td> <ul> <li>1,000,000 messages per minute in us-central1</li> <li>700,000 messages per minute in us-east1</li> <li>300,000 messages per minute in us-west1</li> <li>180,000 messages per minute in other regions</li> </ul> </td> <td> <p><code translate="no" dir="ltr">pubsub.googleapis.com/exactlyoncedeliveredmessagecount</code></p> <p>Quota usage is based on the number of <code translate="no" dir="ltr">PubsubMessage</code>s consumed by the subscriber:</p> <ul> <li><a href="/pubsub/docs/reference/rest/v1/PubsubMessage">PubsubMessage</a> (REST)</li> <li><a href="/pubsub/docs/reference/rpc/google.pubsub.v1#google.pubsub.v1.PubsubMessage">PubsubMessage</a> (RPC)</li> </ul> </td> </tr> <tr> <td>Number of messages acknowledged or whose deadline is extended when using subscriptions with <a href="/pubsub/docs/exactly-once-delivery?">exactly-once delivery</a> enabled per region</td> <td> <ul> <li>10,000,000 messages per minute in us-central1</li> <li>7,000,000 messages per minute in us-east1</li> <li>3,000,000 messages per minute in us-west1</li> <li>1,800,000 messages per minute in other regions</li> </ul> </td> <td> <p><code translate="no" dir="ltr">pubsub.googleapis.com/exactlyonceackcount</code></p> <p>Quota usage is based on the number of acknowledgment IDs in <code translate="no" dir="ltr">Acknowledge</code> and <code translate="no" dir="ltr">ModifyAckDeadline</code> requests:</p> <ul> <li><a href="/pubsub/docs/reference/rpc/google.pubsub.v1#acknowledgerequest">AcknowledgeRequest</a> (RPC)</li> <li><a href="/pubsub/docs/reference/rpc/google.pubsub.v1#modifyackdeadlinerequest">ModifyAckDeadlineRequest</a> (RPC)</li> </ul> </td> </tr> </table> <h2 id="throughput_quota_units" data-text="Throughput quota units" tabindex="-1">Throughput quota units</h2> <p>Throughput quota usage is measured in 1kB units. 1 kB is 1000 bytes. For example, in a <code translate="no" dir="ltr">PublishRequest</code> with 105 messages of 50 bytes each, the user data size is <code translate="no" dir="ltr">105 * 50 bytes = 5250 bytes</code>, so the quota usage is <code translate="no" dir="ltr">max(1kB, ceil(5250 bytes/1000)) = 6kB</code>.</p> <h2 id="resource_limits" data-text="Resource limits" tabindex="-1">Resource limits</h2> <aside class="note"><strong>Note: </strong>It is not possible to request increases to the following limits.</aside> <table style="width:100%"> <tr> <th>Resource</th> <th>Limits</th> </tr> <tr> <td>Project</td> <td> 10,000 topics<br> 10,000 attached or detached subscriptions<br> 5,000 snapshots<br> 10,000 schemas </td> </tr> <tr> <td>Topic</td> <td> 10,000 attached subscriptions<br> 5,000 attached snapshots<br> If <a href="/pubsub/docs/replay-overview#topic_message_retention">topic message retention</a> is configured, messages published to a topic can be retained in persistent storage for up to 31 days from the time of publication. </td> </tr> <tr> <td>Subscription</td> <td> By default, <a href="/pubsub/docs/subscription-properties#message-retention-duration">retains unacknowledged messages</a> in persistent storage for 7 days from the time of publication. There is no limit on the <strong>number</strong> of retained messages.<br> If subscribers don't use a subscription, the subscription expires. The default expiration period is 31 days. </td> </tr> <tr> <td>Schema</td> <td>Schema size (the <code translate="no" dir="ltr">definition</code> field): 300KB<br> Revisions per schema: 20</td> </tr> <tr> <td>Publish request</td> <td> 10MB (total size)<br> 1,000 messages </td> </tr> <tr> <td>Message</td> <td> Message size (the <code translate="no" dir="ltr">data</code> field): 10MB<br> Attributes per message: 100<br> Attribute key size: 256 bytes<br> Attribute value size: 1024 bytes </td> </tr> <tr> <td>StreamingPull streams</td> <td>10 MBps per open stream</td> </tr> <tr> <td>Unary Pull response</td> <td> Maximum number of messages in Pull response: 1000 <br> Maximum size of Pull response: 10 MB </td> </tr> <tr> <td>Pull/StreamingPull messages</td> <td> The service might impose limits on the total number of outstanding StreamingPull messages per connection. If you run into such limits, increase the rate at which you acknowledge messages and the number of connections you use. </td> <tr> <td>Acknowledge and ModifyAckDeadline requests</td> <td> 512 KB (total size)<br> </td> </tr> </tr> <tr> <td>Ordering keys</td> <td> If messages have <a href="/pubsub/docs/publisher#using_ordering_keys">ordering keys</a>, the maximum publisher throughput is 1 MBps for each ordering key. </td> </tr> <tr><td>Cloud Storage bucket objects</td> <td>When using Cloud Storage import topics, the limit for the number of objects in a bucket is 50 million.</td></tr> </table> <h2 id="high-volume-operations" data-text="Use a service account for higher quotas" tabindex="-1">Use a service account for higher quotas</h2> <p>If you use the Google Cloud CLI tool with a normal user account (that is, a non-service account), Pub/Sub operations are limited to a rate suitable for manual operations. Rates in excess of this limit results in the <a href="/pubsub/docs/error-codes#resource-exhausted">RESOURCE_EXHAUSTED</a> error. The solution is to make sure that you are using service account credentials. If you want to use credentials from the gcloud CLI for automation, <a href="/sdk/gcloud/reference/auth/activate-service-account">activate a service account</a> for your Pub/Sub operations.</p> <h2 id="endpoints" data-text="Use locational endpoints to route requests" tabindex="-1">Use locational endpoints to route requests</h2> <p>If you have additional quota in particular regions, you can route requests to these regions using <a href="/pubsub/docs/reference/service_apis_overview#service_endpoints">locational Pub/Sub endpoints</a>. When you publish messages to a global endpoint, the Pub/Sub service might route traffic to a region that does not have sufficient quota.</p> <h2 id="quota_mismatches" data-text="Quota mismatches" tabindex="-1">Quota mismatches</h2> <p>Quota mismatches can happen when published or received messages are smaller than 1000 bytes. For example:</p> <ul> <li><p>If you publish 10 500-byte messages in separate requests, your publisher quota usage will be 10,000 bytes. This is because messages that are smaller than 1000 bytes are automatically rounded up to the next 1000-byte increment.</p></li> <li><p>If you receive those 10 messages in a single pull response, your subscriber quota usage might be only 5 kB, since the actual size of each message is combined to determine the overall quota.</p></li> <li><p>The inverse is also true. The subscriber quota usage might be greater than the publisher quota usage if you publish multiple messages in a single publish request or receive the messages in separate Pull requests.</p></li> </ul> <devsite-hats-survey class="nocontent" hats-id="Nd7nTix2o0eU5NUYprb0ThtUc5jf" listnr-id="83405"></devsite-hats-survey> </div> <devsite-thumb-rating position="footer"> </devsite-thumb-rating> <devsite-feedback position="footer" project-name="Pub/Sub Documentation" product-id="96707" bucket="documentation" context="" version="t-devsite-webserver-20250211-r00-rc00.466928320959134316" data-label="Send Feedback Button" track-type="feedback" track-name="sendFeedbackLink" track-metadata-position="footer" class="nocontent" project-feedback-url="https://issuetracker.google.com/issues/new?component=187173&template=0" project-icon="https://www.gstatic.com/devrel-devsite/prod/v38a693baeb774512feb42f10aac8f755d8791ed41119b5be7a531f8e16f8279f/cloud/images/favicons/onecloud/super_cloud.png" > <button> Send feedback </button> </devsite-feedback> <div class="devsite-floating-action-buttons"> </div> </article> <devsite-content-footer class="nocontent"> <p>Except as otherwise noted, the content of this page is licensed under the <a href="https://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution 4.0 License</a>, and code samples are licensed under the <a href="https://www.apache.org/licenses/LICENSE-2.0">Apache 2.0 License</a>. For details, see the <a href="https://developers.google.com/site-policies">Google Developers Site Policies</a>. Java is a registered trademark of Oracle and/or its affiliates.</p> <p>Last updated 2025-02-14 UTC.</p> </devsite-content-footer> <devsite-notification > </devsite-notification> <div class="devsite-content-data"> <template class="devsite-thumb-rating-feedback"> <devsite-feedback position="thumb-rating" project-name="Pub/Sub Documentation" product-id="96707" bucket="documentation" context="" version="t-devsite-webserver-20250211-r00-rc00.466928320959134316" data-label="Send Feedback Button" track-type="feedback" track-name="sendFeedbackLink" track-metadata-position="thumb-rating" class="nocontent" project-feedback-url="https://issuetracker.google.com/issues/new?component=187173&template=0" project-icon="https://www.gstatic.com/devrel-devsite/prod/v38a693baeb774512feb42f10aac8f755d8791ed41119b5be7a531f8e16f8279f/cloud/images/favicons/onecloud/super_cloud.png" > <button> Need to tell us more? </button> </devsite-feedback> </template> <template class="devsite-content-data-template"> [[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-02-14 UTC."],[],[]] </template> </div> </devsite-content> </main> <devsite-footer-promos class="devsite-footer"> </devsite-footer-promos> <devsite-footer-linkboxes class="devsite-footer"> <nav class="devsite-footer-linkboxes nocontent" aria-label="Footer links"> <ul class="devsite-footer-linkboxes-list"> <li class="devsite-footer-linkbox "> <h3 class="devsite-footer-linkbox-heading no-link">Why Google</h3> <ul class="devsite-footer-linkbox-list"> <li class="devsite-footer-linkbox-item"> <a href="/why-google-cloud/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 1)" track-name="choosing google cloud"track-metadata-child_headline="why google"track-metadata-module="footer"track-metadata-eventDetail="cloud.google.com/why-google-cloud/"track-type="footer link"track-metadata-position="footer"> Choosing Google Cloud </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/trust-center/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 2)" track-metadata-eventDetail="cloud.google.com/security/"track-metadata-module="footer"track-type="footer link"track-metadata-position="footer"track-metadata-child_headline="why google"track-name="trust and security"> Trust and security </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/solutions/modern-infrastructure/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 3)" track-type="footer link"track-name="modern infrastructure cloud"track-metadata-child_headline="why google"track-metadata-eventDetail="cloud.google.com/solutions/modern-infrastructure/"track-metadata-module="footer"track-metadata-position="footer"> Modern Infrastructure Cloud </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/multicloud/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 4)" track-metadata-eventDetail="cloud.google.com/multicloud/"track-name="multicloud"track-metadata-child_headline="why google"track-metadata-module="footer"track-type="footer link"track-metadata-position="footer"> Multicloud </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/infrastructure/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 5)" track-metadata-child_headline="why google"track-type="footer link"track-name="global infrastructure"track-metadata-eventDetail="cloud.google.com/infrastructure/"track-metadata-module="footer"track-metadata-position="footer"> Global infrastructure </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/customers/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 6)" track-type="footer link"track-name="customers and case studies"track-metadata-child_headline="why google"track-metadata-module="footer"track-metadata-position="footer"track-metadata-eventDetail="cloud.google.com/customers/"> Customers and case studies </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/analyst-reports/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 7)" track-metadata-eventDetail="cloud.google.com/analyst-reports/"track-metadata-child_headline="why google"track-name="analyst reports"track-metadata-module="footer"track-type="footer link"track-metadata-position="footer"> Analyst reports </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/whitepapers/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 8)" track-metadata-module="footer"track-type="footer link"track-metadata-eventDetail="cloud.google.com/whitepapers/"track-metadata-position="footer"track-metadata-child_headline="why google"track-name="whitepapers"> Whitepapers </a> </li> <li class="devsite-footer-linkbox-item"> <a href="//cloud.google.com/blog/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 9)" track-type="footer link"track-metadata-module="footer"track-metadata-eventDetail="cloud.google.com/blog/"track-metadata-position="footer"track-metadata-child_headline="engage"track-name="blog"> Blog </a> </li> </ul> </li> <li class="devsite-footer-linkbox "> <h3 class="devsite-footer-linkbox-heading no-link">Products and pricing</h3> <ul class="devsite-footer-linkbox-list"> <li class="devsite-footer-linkbox-item"> <a href="/pricing/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 1)" track-name="google cloud pricing"track-metadata-module="footer"track-type="footer link"track-metadata-position="footer"track-metadata-eventDetail="cloud.google.com/pricing/"track-metadata-child_headline="products and pricing"> Google Cloud pricing </a> </li> <li class="devsite-footer-linkbox-item"> <a href="//workspace.google.com/pricing.html" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 2)" track-metadata-module="footer"track-metadata-position="footer"track-metadata-child_headline="products and pricing"track-name="google workspace pricing"track-metadata-eventDetail="workspace.google.com/pricing.html"track-type="footer link"target="_blank"> Google Workspace pricing </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/products/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 3)" track-metadata-module="footer"track-name="see all products"track-metadata-position="footer"track-type="footer link"track-metadata-eventDetail="cloud.google.com/products/"track-metadata-child_headline="products and pricing"> See all products </a> </li> </ul> </li> <li class="devsite-footer-linkbox "> <h3 class="devsite-footer-linkbox-heading no-link">Solutions</h3> <ul class="devsite-footer-linkbox-list"> <li class="devsite-footer-linkbox-item"> <a href="/solutions/infrastructure-modernization/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 1)" track-type="footer link"track-name="infrastructure modernization"track-metadata-child_headline="solutions"track-metadata-position="footer"track-metadata-eventDetail="cloud.google.com/solutions/infrastructure-modernization/"track-metadata-module="footer"> Infrastructure modernization </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/solutions/databases/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 2)" track-metadata-position="footer"track-name="databases"track-metadata-child_headline="solutions"track-metadata-eventDetail="cloud.google.com/solutions/databases"track-metadata-module="footer"track-type="footer link"> Databases </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/solutions/application-modernization/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 3)" track-metadata-module="footer"track-type="footer link"track-metadata-child_headline="solutions"track-name="application development"track-metadata-position="footer"track-metadata-eventDetail="cloud.google.com/solutions/application-modernization/"> Application modernization </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/solutions/smart-analytics/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 4)" track-metadata-child_headline="solutions"track-name="smart analytics"track-metadata-module="footer"track-type="footer link"track-metadata-eventDetail="cloud.google.com/solutions/smart-analytics/"track-metadata-position="footer"> Smart analytics </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/solutions/ai/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 5)" track-metadata-child_headline="solutions"track-name="artificial intelligence"track-metadata-module="footer"track-type="footer link"track-metadata-eventDetail="cloud.google.com/solutions/ai/"track-metadata-position="footer"> Artificial Intelligence </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/solutions/security/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 6)" track-metadata-eventDetail="cloud.google.com/solutions/security/"track-type="footer link"track-metadata-module="footer"track-metadata-position="footer"track-metadata-child_headline="solutions"track-name="security"> Security </a> </li> <li class="devsite-footer-linkbox-item"> <a href="https://workspace.google.com/enterprise/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 7)" track-metadata-child_headline="solutions"track-metadata-eventDetail="workspace.google.com/enterprise/"target="_blank"track-type="footer link"track-name="productivity and work transformation"track-metadata-module="footer"track-metadata-position="footer"> Productivity & work transformation </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/solutions/#industry-solutions" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 8)" track-metadata-module="footer"track-metadata-position="footer"track-type="footer link"track-metadata-eventDetail="cloud.google.com/solutions/#industry-solutions"track-metadata-child_headline="solutions"track-name="industry solutions"> Industry solutions </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/solutions/devops/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 9)" track-metadata-module="footer"track-type="footer link"track-metadata-position="footer"track-metadata-eventDetail="cloud.google.com/solutions/devops/"track-metadata-child_headline="solutions"track-name="devops solutions"> DevOps solutions </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/solutions/#section-14" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 10)" track-metadata-child_headline="solutions"track-name="small business solutions"track-metadata-module="footer"track-type="footer link"track-metadata-position="footer"track-metadata-eventDetail="cloud.google.com/solutions/#section-14"> Small business solutions </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/solutions/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 11)" track-type="footer link"track-metadata-child_headline="solutions"track-metadata-eventDetail="cloud.google.com/solutions/"track-metadata-position="footer"track-name="see all solutions"track-metadata-module="footer"> See all solutions </a> </li> </ul> </li> <li class="devsite-footer-linkbox "> <h3 class="devsite-footer-linkbox-heading no-link">Resources</h3> <ul class="devsite-footer-linkbox-list"> <li class="devsite-footer-linkbox-item"> <a href="/affiliate-program/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 1)" track-metadata-eventDetail="cloud.google.com/affiliate-program/"track-metadata-module="footer"track-metadata-position="footer"track-metadata-child_headline="resources"track-name="google cloud affiliate program"track-type="footer link"> Google Cloud Affiliate Program </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/docs/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 2)" track-metadata-position="footer"track-metadata-eventDetail="cloud.google.com/docs/"track-metadata-child_headline="resources"track-name="google cloud documentation"track-type="footer link"track-metadata-module="footer"> Google Cloud documentation </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/docs/get-started/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 3)" track-metadata-eventDetail="cloud.google.com/docs/get-started/"track-type="footer link"track-metadata-module="footer"track-name="google cloud quickstarts"track-metadata-child_headline="resources"track-metadata-position="footer"> Google Cloud quickstarts </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/marketplace/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 4)" track-name="google cloud marketplace"track-metadata-module="footer"track-metadata-position="footer"track-type="footer link"track-metadata-eventDetail="cloud.google.com/marketplace/"track-metadata-child_headline="resources"> Google Cloud Marketplace </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/discover/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 5)" track-type="footer link"track-metadata-module="footer"track-metadata-eventDetail="learn/"track-metadata-child_headline="resources"track-metadata-position="footer"track-name="learn about cloud computing"> Learn about cloud computing </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/support-hub/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 6)" track-metadata-child_headline="resources"track-name="support"track-metadata-module="footer"track-metadata-position="footer"track-type="footer link"track-metadata-eventDetail="cloud.google.com/support-hub/"> Support </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/docs/samples" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 7)" track-metadata-eventDetail="cloud.google.com/docs/samples"track-metadata-module="footer"track-type="footer link"track-metadata-child_headline="resources"track-name="code samples"track-metadata-position="footer"> Code samples </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/architecture/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 8)" track-metadata-eventDetail="cloud.google.com/architecture/"track-metadata-module="footer"track-type="footer link"track-metadata-position="footer"track-name="cloud architecture center"track-metadata-child_headline="resources"> Cloud Architecture Center </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/learn/training/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 9)" track-metadata-child_headline="resources"track-name="training"track-type="footer link"track-metadata-module="footer"track-metadata-eventDetail="cloud.google.com/training/"track-metadata-position="footer"> Training </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/learn/certification/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 10)" track-metadata-module="footer"track-metadata-child_headline="resources"track-name="certifications"track-metadata-position="footer"track-metadata-eventDetail="cloud.google.com/certification"track-type="footer link"> Certifications </a> </li> <li class="devsite-footer-linkbox-item"> <a href="//developers.google.com" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 11)" track-metadata-position="footer"track-metadata-child_headline="resources"track-name="google developers"target="_blank"track-metadata-eventDetail="developers.google.com"track-type="footer link"track-metadata-module="footer"> Google for Developers </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/startup/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 12)" track-type="footer link"track-metadata-eventDetail="cloud.google.com/startup/"track-metadata-module="footer"track-metadata-position="footer"track-name="google cloud for startups"track-metadata-child_headline="resources"> Google Cloud for Startups </a> </li> <li class="devsite-footer-linkbox-item"> <a href="//status.cloud.google.com" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 13)" track-metadata-child_headline="resources"track-name="system status"track-metadata-module="footer"track-type="footer link"track-metadata-position="footer"target="_blank"track-metadata-eventDetail="status.cloud.google.com"> System status </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/release-notes" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 14)" track-metadata-eventDetail="cloud.google.com/release-notes/"track-metadata-module="footer"track-type="footer link"track-name="release notes"track-metadata-child_headline="resources"track-metadata-position="footer"> Release Notes </a> </li> </ul> </li> <li class="devsite-footer-linkbox "> <h3 class="devsite-footer-linkbox-heading no-link">Engage</h3> <ul class="devsite-footer-linkbox-list"> <li class="devsite-footer-linkbox-item"> <a href="/contact/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 1)" track-metadata-position="footer"track-name="contact sales"track-metadata-child_headline="engage"track-metadata-eventDetail="cloud.google.com/contact/"track-type="footer link"track-metadata-module="footer"> Contact sales </a> </li> <li class="devsite-footer-linkbox-item"> <a href="//cloud.google.com/find-a-partner" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 2)" target="_blank"track-metadata-eventDetail="cloud.google.com/find-a-partner"track-metadata-module="footer"track-type="footer link"track-metadata-position="footer"track-name="find a partner"track-metadata-child_headline="engage"> Find a Partner </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/partners/become-a-partner/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 3)" track-metadata-module="footer"track-type="footer link"track-metadata-position="footer"track-metadata-eventDetail="cloud.google.com/partners/become-a-partner/"track-name="become a partner"track-metadata-child_headline="engage"> Become a Partner </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/events/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 4)" track-metadata-child_headline="engage"track-type="footer link"track-name="events"track-metadata-eventDetail="cloud.withgoogle.com/events"track-metadata-module="footer"track-metadata-position="footer"> Events </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/podcasts/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 5)" track-metadata-module="footer"rel="noopener"track-name="podcasts"track-metadata-position="footer"track-metadata-child_headline="engage"target="_blank"track-metadata-eventDetail="cloud.google.com/podcasts/"track-type="footer link"> Podcasts </a> </li> <li class="devsite-footer-linkbox-item"> <a href="/developers/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 6)" track-metadata-child_headline="engage"track-name="developer center"track-type="footer link"track-metadata-module="footer"track-metadata-eventDetail="cloud.google.com/developers/"track-metadata-position="footer"> Developer Center </a> </li> <li class="devsite-footer-linkbox-item"> <a href="https://www.googlecloudpresscorner.com/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 7)" track-type="footer link"track-metadata-module="footer"rel="noopener"track-metadata-position="footer"track-metadata-child_headline="engage"track-metadata-eventDetail="www.googlecloudpresscorner.com"track-name="press corner"target="_blank"> Press Corner </a> </li> <li class="devsite-footer-linkbox-item"> <a href="//www.youtube.com/googlecloud" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 8)" track-name="google cloud on youtube"track-metadata-position="footer"track-type="footer link"track-metadata-eventDetail="www.youtube.com/googlecloud"track-metadata-child_headline="engage"rel="noopener"track-metadata-module="footer"target="_blank"> Google Cloud on YouTube </a> </li> <li class="devsite-footer-linkbox-item"> <a href="//www.youtube.com/googlecloudplatform" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 9)" target="_blank"rel="noopener"track-name="google cloud tech on youtube"track-metadata-module="footer"track-metadata-eventDetail="www.youtube.com/googlecloudplatform"track-metadata-child_headline="engage"track-metadata-position="footer"track-type="footer link"> Google Cloud Tech on YouTube </a> </li> <li class="devsite-footer-linkbox-item"> <a href="//x.com/googlecloud" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 10)" rel="noopener"track-metadata-module="footer"target="_blank"track-name="follow on x"track-metadata-position="footer"track-type="footer link"track-metadata-eventDetail="x.com/googlecloud"track-metadata-child_headline="engage"> Follow on X </a> </li> <li class="devsite-footer-linkbox-item"> <a href="//userresearch.google.com/?reserved=1&utm_source=website&Q_Language=en&utm_medium=own_srch&utm_campaign=CloudWebFooter&utm_term=0&utm_content=0&productTag=clou&campaignDate=jul19&pType=devel&referral_code=jk212693" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 11)" track-metadata-child_headline="engage"target="_blank"track-metadata-module="footer"track-type="footer link"track-metadata-eventDetail="userresearch.google.com/?reserved=1&utm_source=website&Q_Language=en&utm_medium=own_srch&utm_campaign=CloudWebFooter&utm_term=0&utm_content=0&productTag=clou&campaignDate=jul19&pType=devel&referral_code=jk212693"track-name="join user research"track-metadata-position="footer"> Join User Research </a> </li> <li class="devsite-footer-linkbox-item"> <a href="//careers.google.com/cloud" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 12)" track-metadata-position="footer"target="_blank"track-name="we are hiring join google cloud"track-metadata-module="footer"track-metadata-child_headline="engage"track-type="footer link"track-metadata-eventDetail="careers.google.com/cloud"> We're hiring. Join Google Cloud! </a> </li> <li class="devsite-footer-linkbox-item"> <a href="https://www.googlecloudcommunity.com/" class="devsite-footer-linkbox-link gc-analytics-event" data-category="Site-Wide Custom Events" data-label="Footer Link (index 13)" track-type="footer link"track-metadata-eventDetail="www.googlecloudcommunity.com"track-name="google cloud community"track-metadata-position="footer"track-metadata-child_headline="engage"target="_blank"rel="noopener"track-metadata-module="footer"> Google Cloud Community </a> </li> </ul> </li> </ul> </nav> </devsite-footer-linkboxes> <devsite-footer-utility class="devsite-footer"> <div class="devsite-footer-utility nocontent"> <nav class="devsite-footer-utility-links" aria-label="Utility links"> <ul class="devsite-footer-utility-list"> <li class="devsite-footer-utility-item "> <a class="devsite-footer-utility-link gc-analytics-event" href="//about.google/" data-category="Site-Wide Custom Events" data-label="Footer About Google link" track-name="about google" track-metadata-position="footer" target="_blank" track-type="footer link" track-metadata-eventDetail="//about.google/" track-metadata-module="utility footer" > About Google </a> </li> <li class="devsite-footer-utility-item devsite-footer-privacy-link"> <a class="devsite-footer-utility-link gc-analytics-event" href="//policies.google.com/privacy" data-category="Site-Wide Custom Events" data-label="Footer Privacy link" track-metadata-position="footer" track-type="footer link" track-name="privacy" target="_blank" track-metadata-eventDetail="//policies.google.com/privacy" track-metadata-module="utility footer" > Privacy </a> </li> <li class="devsite-footer-utility-item "> <a class="devsite-footer-utility-link gc-analytics-event" href="//www.google.com/intl/en/policies/terms/regional.html" data-category="Site-Wide Custom Events" data-label="Footer Site terms link" track-metadata-eventDetail="//www.google.com/intl/en/policies/terms/regional.html" track-type="footer link" track-name="site terms" track-metadata-module="utility footer" target="_blank" track-metadata-position="footer" > Site terms </a> </li> <li class="devsite-footer-utility-item "> <a class="devsite-footer-utility-link gc-analytics-event" href="/product-terms/" data-category="Site-Wide Custom Events" data-label="Footer Google Cloud terms link" track-metadata-module="utility footer" track-metadata-position="footer" track-metadata-eventDetail="/product-terms/" track-type="footer link" track-name="google cloud terms" > Google Cloud terms </a> </li> <li class="devsite-footer-utility-item glue-cookie-notification-bar-control"> <a class="devsite-footer-utility-link gc-analytics-event" href="#" data-category="Site-Wide Custom Events" data-label="Footer Manage cookies link" track-name="Manage cookies" track-metadata-module="utility footer" track-type="footer link" track-metadata-position="footer" aria-hidden="true" track-metadata-eventDetail="#" > Manage cookies </a> </li> <li class="devsite-footer-utility-item devsite-footer-carbon-button"> <a class="devsite-footer-utility-link gc-analytics-event" href="/sustainability" data-category="Site-Wide Custom Events" data-label="Footer Our third decade of climate action: join us link" track-metadata-module="utility footer" track-type="footer link" track-metadata-position="footer" track-metadata-eventDetail="/sustainability/" track-name="Our third decade of climate action: join us" > Our third decade of climate action: join us </a> </li> <li class="devsite-footer-utility-item devsite-footer-utility-button"> <span class="devsite-footer-utility-description">Sign up for the Google Cloud newsletter</span> <a class="devsite-footer-utility-link gc-analytics-event" href="/newsletter/" data-category="Site-Wide Custom Events" data-label="Footer Subscribe link" track-metadata-position="footer" track-metadata-eventDetail="/newsletter/" track-name="subscribe" track-metadata-module="utility footer" track-type="footer link" > Subscribe </a> </li> </ul> <devsite-language-selector> <ul role="presentation"> <li role="presentation"> <a role="menuitem" lang="en" >English</a> </li> <li role="presentation"> <a role="menuitem" lang="de" >Deutsch</a> </li> <li role="presentation"> <a role="menuitem" lang="es_419" >Español – América Latina</a> </li> <li role="presentation"> <a role="menuitem" lang="fr" >Français</a> </li> <li role="presentation"> <a role="menuitem" lang="id" >Indonesia</a> </li> <li role="presentation"> <a role="menuitem" lang="it" >Italiano</a> </li> <li role="presentation"> <a role="menuitem" lang="pt_br" >Português – Brasil</a> </li> <li role="presentation"> <a role="menuitem" lang="zh_cn" >中文 – 简体</a> </li> <li role="presentation"> <a role="menuitem" lang="ja" >日本語</a> </li> <li role="presentation"> <a role="menuitem" lang="ko" >한국어</a> </li> </ul> </devsite-language-selector> </nav> </div> </devsite-footer-utility> <devsite-panel></devsite-panel> </section></section> <devsite-sitemask></devsite-sitemask> <devsite-snackbar></devsite-snackbar> <devsite-tooltip ></devsite-tooltip> <devsite-heading-link></devsite-heading-link> <devsite-analytics> <script type="application/json" analytics>[]</script> <script type="application/json" tag-management>{"at": "True", "ga4": [], "ga4p": [], "gtm": [{"id": "GTM-5CVQBG", "purpose": 1}], "parameters": {"internalUser": "False", "language": {"machineTranslated": "False", "requested": "en", "served": "en"}, "pageType": "article", "projectName": "Pub/Sub Documentation", "signedIn": "False", "tenant": "cloud", "recommendations": {"sourcePage": "", "sourceType": 0, "sourceRank": 0, "sourceIdenticalDescriptions": 0, "sourceTitleWords": 0, "sourceDescriptionWords": 0, "experiment": ""}, "experiment": {"ids": ""}}}</script> </devsite-analytics> <devsite-badger></devsite-badger> <cloudx-user></cloudx-user> <cloudx-free-trial-eligible-store freeTrialEligible='true'></cloudx-free-trial-eligible-store> <cloudx-pricing-socket></cloudx-pricing-socket> <cloudx-experiments type="TestAACodivertedExperiment" path="/virtual/TestAACodivertedExperiment/configureExperiment" location="SG" variant="variant2" ></cloudx-experiments> <cloudx-experiment-ids userCountry="SG" devsiteExperimentIdList="[39300012, 39300021, 39300118, 39300196, 39300241, 39300319, 39300320, 39300326, 39300345, 39300354, 39300364, 39300373, 39300412, 39300421, 39300436, 39300471, 39300488, 39300496, 39300498, 39300569]"> </cloudx-experiment-ids> <script nonce="hIeQ2ukSpz+UrR1826EwonPLXEw/1L"> (function(d,e,v,s,i,t,E){d['GoogleDevelopersObject']=i; t=e.createElement(v);t.async=1;t.src=s;E=e.getElementsByTagName(v)[0]; E.parentNode.insertBefore(t,E);})(window, document, 'script', 'https://www.gstatic.com/devrel-devsite/prod/v38a693baeb774512feb42f10aac8f755d8791ed41119b5be7a531f8e16f8279f/cloud/js/app_loader.js', '[2,"en",null,"/js/devsite_app_module.js","https://www.gstatic.com/devrel-devsite/prod/v38a693baeb774512feb42f10aac8f755d8791ed41119b5be7a531f8e16f8279f","https://www.gstatic.com/devrel-devsite/prod/v38a693baeb774512feb42f10aac8f755d8791ed41119b5be7a531f8e16f8279f/cloud","https://cloud-dot-devsite-v2-prod.appspot.com",null,null,["/_pwa/cloud/manifest.json","https://www.gstatic.com/devrel-devsite/prod/v38a693baeb774512feb42f10aac8f755d8791ed41119b5be7a531f8e16f8279f/images/video-placeholder.svg","https://www.gstatic.com/devrel-devsite/prod/v38a693baeb774512feb42f10aac8f755d8791ed41119b5be7a531f8e16f8279f/cloud/images/favicons/onecloud/favicon.ico","https://www.gstatic.com/devrel-devsite/prod/v38a693baeb774512feb42f10aac8f755d8791ed41119b5be7a531f8e16f8279f/cloud/images/cloud-logo.svg","https://fonts.googleapis.com/css?family=Google+Sans:400,500,700|Google+Sans+Text:400,400italic,500,500italic,700,700italic|Roboto:400,400italic,500,500italic,700,700italic|Roboto+Mono:400,500,700&display=swap"],1,null,[1,6,8,12,14,17,21,25,50,52,63,70,75,76,80,87,91,92,93,97,98,100,101,102,103,104,105,107,108,109,110,112,113,117,118,120,122,124,125,126,127,129,130,131,132,133,134,135,136,138,140,141,147,148,149,151,152,156,157,158,159,161,163,164,168,169,170,179,180,182,183,186,191,193,196],"AIzaSyAP-jjEJBzmIyKR4F-3XITp8yM9T1gEEI8","AIzaSyB6xiKGDR5O3Ak2okS4rLkauxGUG7XP0hg","cloud.google.com","AIzaSyAQk0fBONSGUqCNznf6Krs82Ap1-NV6J4o","AIzaSyCCxcqdrZ_7QMeLCRY20bh_SXdAYqy70KY",null,null,null,["Search__enable_page_map","Profiles__enable_recognition_badges","Cloud__enable_cloud_facet_chat","Analytics__enable_clearcut_logging","Cloud__enable_cloudx_ping","EngEduTelemetry__enable_engedu_telemetry","MiscFeatureFlags__enable_firebase_utm","Experiments__reqs_query_experiments","Cloud__enable_cloudx_experiment_ids","MiscFeatureFlags__developers_footer_dark_image","Search__enable_ai_eligibility_checks","Search__scope_to_project_tenant","MiscFeatureFlags__emergency_css","Profiles__enable_join_program_group_endpoint","MiscFeatureFlags__enable_project_variables","CloudShell__cloud_code_overflow_menu","Profiles__require_profile_eligibility_for_signin","Profiles__enable_developer_profiles_callout","DevPro__enable_developer_subscriptions","Search__enable_ai_search_summaries","Cloud__enable_cloud_dlp_service","Cloud__enable_legacy_calculator_redirect","MiscFeatureFlags__enable_explain_this_code","TpcFeatures__enable_mirror_tenant_redirects","Cloud__enable_cloud_shell_fte_user_flow","Profiles__enable_page_saving","Search__enable_dynamic_content_confidential_banner","Cloud__enable_cloud_shell","Profiles__enable_release_notes_notifications","Profiles__enable_completequiz_endpoint","Profiles__enable_public_developer_profiles","Profiles__enable_completecodelab_endpoint","MiscFeatureFlags__enable_variable_operator","Cloud__enable_free_trial_server_call","Profiles__enable_profile_collections","Cloud__enable_llm_concierge_chat","BookNav__enable_tenant_cache_key","Profiles__enable_dashboard_curated_recommendations","Concierge__enable_concierge_restricted","DevPro__enable_cloud_innovators_plus","TpcFeatures__enable_unmirrored_page_left_nav","Profiles__enable_awarding_url","Concierge__enable_pushui","MiscFeatureFlags__developers_footer_image","Profiles__enable_stripe_subscription_management","MiscFeatureFlags__enable_view_transitions","Search__enable_suggestions_from_borg","Profiles__enable_complete_playlist_endpoint","Search__enable_ai_search_summaries_restricted","CloudShell__cloud_shell_button"],null,null,"AIzaSyBLEMok-5suZ67qRPzx0qUtbnLmyT_kCVE","https://developerscontentserving-pa.clients6.google.com","AIzaSyCM4QpTRSqP5qI4Dvjt4OAScIN8sOUlO-k","https://developerscontentsearch-pa.clients6.google.com",1,4,1,"https://developerprofiles-pa.clients6.google.com",[2,"cloud","Google Cloud","cloud.google.com",null,"cloud-dot-devsite-v2-prod.appspot.com",null,null,[1,1,null,null,null,null,null,null,null,null,null,[1],null,null,null,null,null,1,[1],[null,null,null,[1,20],"/terms/recommendations"],[1],null,[1],[1,null,1],[1,1,null,null,1,null,["/vertex-ai/"]]],null,[22,null,null,null,null,null,"/images/cloud-logo.svg","/images/favicons/onecloud/apple-icon.png",null,null,null,null,1,1,1,[6,5],[],null,null,[[],[],[],[],[],[],[],[]],null,1,null,null,null,null,[]],[],null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,[6,1,14,15,22,23,29,37],null,[[null,null,null,null,null,null,[1,[["docType","Choose a content type",[["ApiReference",null,null,null,null,null,null,null,null,"API reference"],["Sample",null,null,null,null,null,null,null,null,"Code sample"],["ReferenceArchitecture",null,null,null,null,null,null,null,null,"Reference architecture"],["Tutorial",null,null,null,null,null,null,null,null,"Tutorial"]]],["category","Choose a topic",[["AiAndMachineLearning",null,null,null,null,null,null,null,null,"Artificial intelligence and machine learning (AI/ML)"],["ApplicationDevelopment",null,null,null,null,null,null,null,null,"Application development"],["BigDataAndAnalytics",null,null,null,null,null,null,null,null,"Big data and analytics"],["Compute",null,null,null,null,null,null,null,null,"Compute"],["Containers",null,null,null,null,null,null,null,null,"Containers"],["Databases",null,null,null,null,null,null,null,null,"Databases"],["HybridCloud",null,null,null,null,null,null,null,null,"Hybrid and multicloud"],["LoggingAndMonitoring",null,null,null,null,null,null,null,null,"Logging and monitoring"],["Migrations",null,null,null,null,null,null,null,null,"Migrations"],["Networking",null,null,null,null,null,null,null,null,"Networking"],["SecurityAndCompliance",null,null,null,null,null,null,null,null,"Security and compliance"],["Serverless",null,null,null,null,null,null,null,null,"Serverless"],["Storage",null,null,null,null,null,null,null,null,"Storage"]]]]]],[1],null,1],[[null,null,null,null,null,["GTM-5CVQBG"],null,null,null,null,null,[["GTM-5CVQBG",2]],1],null,null,null,null,null,1],"mwETRvWii0eU5NUYprb0Y9z5GVbc",4,null,null,null,null,null,null,null,null,null,null,null,null,null,"cloud.devsite.google"],null,"pk_live_5170syrHvgGVmSx9sBrnWtA5luvk9BwnVcvIi7HizpwauFG96WedXsuXh790rtij9AmGllqPtMLfhe2RSwD6Pn38V00uBCydV4m",1]') </script> <devsite-a11y-announce></devsite-a11y-announce> </body> </html>

CINXE.COM

Pub/Sub quotas and limits | Pub/Sub Documentation | Google Cloud