| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448 |
- <!DOCTYPE HTML>
- <html lang="en" class="sidebar-visible no-js light">
- <head>
- <!-- Book generated using mdBook -->
- <meta charset="UTF-8">
- <title>Monitoring - Synapse</title>
- <!-- Custom HTML head -->
- <meta content="text/html; charset=utf-8" http-equiv="Content-Type">
- <meta name="description" content="">
- <meta name="viewport" content="width=device-width, initial-scale=1">
- <meta name="theme-color" content="#ffffff" />
- <link rel="icon" href="favicon.svg">
- <link rel="shortcut icon" href="favicon.png">
- <link rel="stylesheet" href="css/variables.css">
- <link rel="stylesheet" href="css/general.css">
- <link rel="stylesheet" href="css/chrome.css">
- <link rel="stylesheet" href="css/print.css" media="print">
- <!-- Fonts -->
- <link rel="stylesheet" href="FontAwesome/css/font-awesome.css">
- <link rel="stylesheet" href="fonts/fonts.css">
- <!-- Highlight.js Stylesheets -->
- <link rel="stylesheet" href="highlight.css">
- <link rel="stylesheet" href="tomorrow-night.css">
- <link rel="stylesheet" href="ayu-highlight.css">
- <!-- Custom theme stylesheets -->
- <link rel="stylesheet" href="docs/website_files/table-of-contents.css">
- <link rel="stylesheet" href="docs/website_files/remove-nav-buttons.css">
- <link rel="stylesheet" href="docs/website_files/indent-section-headers.css">
- <link rel="stylesheet" href="docs/website_files/version-picker.css">
- </head>
- <body>
- <!-- Provide site root to javascript -->
- <script type="text/javascript">
- var path_to_root = "";
- var default_theme = window.matchMedia("(prefers-color-scheme: dark)").matches ? "navy" : "light";
- </script>
- <!-- Work around some values being stored in localStorage wrapped in quotes -->
- <script type="text/javascript">
- try {
- var theme = localStorage.getItem('mdbook-theme');
- var sidebar = localStorage.getItem('mdbook-sidebar');
- if (theme.startsWith('"') && theme.endsWith('"')) {
- localStorage.setItem('mdbook-theme', theme.slice(1, theme.length - 1));
- }
- if (sidebar.startsWith('"') && sidebar.endsWith('"')) {
- localStorage.setItem('mdbook-sidebar', sidebar.slice(1, sidebar.length - 1));
- }
- } catch (e) { }
- </script>
- <!-- Set the theme before any content is loaded, prevents flash -->
- <script type="text/javascript">
- var theme;
- try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
- if (theme === null || theme === undefined) { theme = default_theme; }
- var html = document.querySelector('html');
- html.classList.remove('no-js')
- html.classList.remove('light')
- html.classList.add(theme);
- html.classList.add('js');
- </script>
- <!-- Hide / unhide sidebar before it is displayed -->
- <script type="text/javascript">
- var html = document.querySelector('html');
- var sidebar = 'hidden';
- if (document.body.clientWidth >= 1080) {
- try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
- sidebar = sidebar || 'visible';
- }
- html.classList.remove('sidebar-visible');
- html.classList.add("sidebar-" + sidebar);
- </script>
- <nav id="sidebar" class="sidebar" aria-label="Table of contents">
- <div class="sidebar-scrollbox">
- <ol class="chapter"><li class="chapter-item expanded affix "><li class="part-title">Introduction</li><li class="chapter-item expanded "><a href="welcome_and_overview.html">Welcome and Overview</a></li><li class="chapter-item expanded affix "><li class="part-title">Setup</li><li class="chapter-item expanded "><a href="setup/installation.html">Installation</a></li><li class="chapter-item expanded "><a href="postgres.html">Using Postgres</a></li><li class="chapter-item expanded "><a href="reverse_proxy.html">Configuring a Reverse Proxy</a></li><li class="chapter-item expanded "><a href="setup/forward_proxy.html">Configuring a Forward/Outbound Proxy</a></li><li class="chapter-item expanded "><a href="turn-howto.html">Configuring a Turn Server</a></li><li class="chapter-item expanded "><a href="delegate.html">Delegation</a></li><li class="chapter-item expanded affix "><li class="part-title">Upgrading</li><li class="chapter-item expanded "><a href="upgrade.html">Upgrading between Synapse Versions</a></li><li class="chapter-item expanded affix "><li class="part-title">Usage</li><li class="chapter-item expanded "><a href="federate.html">Federation</a></li><li class="chapter-item expanded "><a href="usage/configuration/index.html">Configuration</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="usage/configuration/config_documentation.html">Configuration Manual</a></li><li class="chapter-item expanded "><a href="usage/configuration/homeserver_sample_config.html">Homeserver Sample Config File</a></li><li class="chapter-item expanded "><a href="usage/configuration/logging_sample_config.html">Logging Sample Config File</a></li><li class="chapter-item expanded "><a href="structured_logging.html">Structured Logging</a></li><li class="chapter-item expanded "><a href="templates.html">Templates</a></li><li class="chapter-item expanded "><a href="usage/configuration/user_authentication/index.html">User Authentication</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="usage/configuration/user_authentication/single_sign_on/index.html">Single-Sign On</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="openid.html">OpenID Connect</a></li><li class="chapter-item expanded "><a href="usage/configuration/user_authentication/single_sign_on/saml.html">SAML</a></li><li class="chapter-item expanded "><a href="usage/configuration/user_authentication/single_sign_on/cas.html">CAS</a></li><li class="chapter-item expanded "><a href="sso_mapping_providers.html">SSO Mapping Providers</a></li></ol></li><li class="chapter-item expanded "><a href="password_auth_providers.html">Password Auth Providers</a></li><li class="chapter-item expanded "><a href="jwt.html">JSON Web Tokens</a></li><li class="chapter-item expanded "><a href="usage/configuration/user_authentication/refresh_tokens.html">Refresh Tokens</a></li></ol></li><li class="chapter-item expanded "><a href="CAPTCHA_SETUP.html">Registration Captcha</a></li><li class="chapter-item expanded "><a href="application_services.html">Application Services</a></li><li class="chapter-item expanded "><a href="server_notices.html">Server Notices</a></li><li class="chapter-item expanded "><a href="consent_tracking.html">Consent Tracking</a></li><li class="chapter-item expanded "><a href="user_directory.html">User Directory</a></li><li class="chapter-item expanded "><a href="message_retention_policies.html">Message Retention Policies</a></li><li class="chapter-item expanded "><a href="modules/index.html">Pluggable Modules</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="modules/writing_a_module.html">Writing a module</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="modules/spam_checker_callbacks.html">Spam checker callbacks</a></li><li class="chapter-item expanded "><a href="modules/third_party_rules_callbacks.html">Third-party rules callbacks</a></li><li class="chapter-item expanded "><a href="modules/presence_router_callbacks.html">Presence router callbacks</a></li><li class="chapter-item expanded "><a href="modules/account_validity_callbacks.html">Account validity callbacks</a></li><li class="chapter-item expanded "><a href="modules/password_auth_provider_callbacks.html">Password auth provider callbacks</a></li><li class="chapter-item expanded "><a href="modules/background_update_controller_callbacks.html">Background update controller callbacks</a></li><li class="chapter-item expanded "><a href="modules/account_data_callbacks.html">Account data callbacks</a></li><li class="chapter-item expanded "><a href="modules/porting_legacy_module.html">Porting a legacy module to the new interface</a></li></ol></li></ol></li><li class="chapter-item expanded "><a href="workers.html">Workers</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="synctl_workers.html">Using synctl with Workers</a></li><li class="chapter-item expanded "><a href="systemd-with-workers/index.html">Systemd</a></li></ol></li></ol></li><li class="chapter-item expanded "><a href="usage/administration/index.html">Administration</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="usage/administration/admin_api/index.html">Admin API</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="admin_api/account_validity.html">Account Validity</a></li><li class="chapter-item expanded "><a href="usage/administration/admin_api/background_updates.html">Background Updates</a></li><li class="chapter-item expanded "><a href="admin_api/event_reports.html">Event Reports</a></li><li class="chapter-item expanded "><a href="admin_api/media_admin_api.html">Media</a></li><li class="chapter-item expanded "><a href="admin_api/purge_history_api.html">Purge History</a></li><li class="chapter-item expanded "><a href="admin_api/register_api.html">Register Users</a></li><li class="chapter-item expanded "><a href="usage/administration/admin_api/registration_tokens.html">Registration Tokens</a></li><li class="chapter-item expanded "><a href="admin_api/room_membership.html">Manipulate Room Membership</a></li><li class="chapter-item expanded "><a href="admin_api/rooms.html">Rooms</a></li><li class="chapter-item expanded "><a href="admin_api/server_notices.html">Server Notices</a></li><li class="chapter-item expanded "><a href="admin_api/statistics.html">Statistics</a></li><li class="chapter-item expanded "><a href="admin_api/user_admin_api.html">Users</a></li><li class="chapter-item expanded "><a href="admin_api/version_api.html">Server Version</a></li><li class="chapter-item expanded "><a href="usage/administration/admin_api/federation.html">Federation</a></li></ol></li><li class="chapter-item expanded "><a href="manhole.html">Manhole</a></li><li class="chapter-item expanded "><a href="metrics-howto.html" class="active">Monitoring</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="usage/administration/monitoring/reporting_homeserver_usage_statistics.html">Reporting Homeserver Usage Statistics</a></li></ol></li><li class="chapter-item expanded "><a href="usage/administration/monthly_active_users.html">Monthly Active Users</a></li><li class="chapter-item expanded "><a href="usage/administration/understanding_synapse_through_grafana_graphs.html">Understanding Synapse Through Grafana Graphs</a></li><li class="chapter-item expanded "><a href="usage/administration/useful_sql_for_admins.html">Useful SQL for Admins</a></li><li class="chapter-item expanded "><a href="usage/administration/database_maintenance_tools.html">Database Maintenance Tools</a></li><li class="chapter-item expanded "><a href="usage/administration/state_groups.html">State Groups</a></li><li class="chapter-item expanded "><a href="usage/administration/request_log.html">Request log format</a></li><li class="chapter-item expanded "><a href="usage/administration/admin_faq.html">Admin FAQ</a></li><li class="chapter-item expanded "><div>Scripts</div></li></ol></li><li class="chapter-item expanded "><li class="part-title">Development</li><li class="chapter-item expanded "><a href="development/contributing_guide.html">Contributing Guide</a></li><li class="chapter-item expanded "><a href="code_style.html">Code Style</a></li><li class="chapter-item expanded "><a href="development/reviews.html">Reviewing Code</a></li><li class="chapter-item expanded "><a href="development/releases.html">Release Cycle</a></li><li class="chapter-item expanded "><a href="development/git.html">Git Usage</a></li><li class="chapter-item expanded "><div>Testing</div></li><li><ol class="section"><li class="chapter-item expanded "><a href="development/demo.html">Demo scripts</a></li></ol></li><li class="chapter-item expanded "><a href="opentracing.html">OpenTracing</a></li><li class="chapter-item expanded "><a href="development/database_schema.html">Database Schemas</a></li><li class="chapter-item expanded "><a href="development/experimental_features.html">Experimental features</a></li><li class="chapter-item expanded "><a href="development/dependencies.html">Dependency management</a></li><li class="chapter-item expanded "><div>Synapse Architecture</div></li><li><ol class="section"><li class="chapter-item expanded "><a href="development/synapse_architecture/cancellation.html">Cancellation</a></li><li class="chapter-item expanded "><a href="log_contexts.html">Log Contexts</a></li><li class="chapter-item expanded "><a href="replication.html">Replication</a></li><li class="chapter-item expanded "><a href="tcp_replication.html">TCP Replication</a></li></ol></li><li class="chapter-item expanded "><a href="development/internal_documentation/index.html">Internal Documentation</a></li><li><ol class="section"><li class="chapter-item expanded "><div>Single Sign-On</div></li><li><ol class="section"><li class="chapter-item expanded "><a href="development/saml.html">SAML</a></li><li class="chapter-item expanded "><a href="development/cas.html">CAS</a></li></ol></li><li class="chapter-item expanded "><a href="development/room-dag-concepts.html">Room DAG concepts</a></li><li class="chapter-item expanded "><div>State Resolution</div></li><li><ol class="section"><li class="chapter-item expanded "><a href="auth_chain_difference_algorithm.html">The Auth Chain Difference Algorithm</a></li></ol></li><li class="chapter-item expanded "><a href="media_repository.html">Media Repository</a></li><li class="chapter-item expanded "><a href="room_and_user_statistics.html">Room and User Statistics</a></li></ol></li><li class="chapter-item expanded "><div>Scripts</div></li><li class="chapter-item expanded affix "><li class="part-title">Other</li><li class="chapter-item expanded "><a href="deprecation_policy.html">Dependency Deprecation Policy</a></li><li class="chapter-item expanded "><a href="other/running_synapse_on_single_board_computers.html">Running Synapse on a Single-Board Computer</a></li></ol>
- </div>
- <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div>
- </nav>
- <div id="page-wrapper" class="page-wrapper">
- <div class="page">
- <div id="menu-bar-hover-placeholder"></div>
- <div id="menu-bar" class="menu-bar sticky bordered">
- <div class="left-buttons">
- <button id="sidebar-toggle" class="icon-button" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
- <i class="fa fa-bars"></i>
- </button>
- <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
- <i class="fa fa-paint-brush"></i>
- </button>
- <ul id="theme-list" class="theme-popup" aria-label="Themes" role="menu">
- <li role="none"><button role="menuitem" class="theme" id="light">Light (default)</button></li>
- <li role="none"><button role="menuitem" class="theme" id="rust">Rust</button></li>
- <li role="none"><button role="menuitem" class="theme" id="coal">Coal</button></li>
- <li role="none"><button role="menuitem" class="theme" id="navy">Navy</button></li>
- <li role="none"><button role="menuitem" class="theme" id="ayu">Ayu</button></li>
- </ul>
- <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
- <i class="fa fa-search"></i>
- </button>
- <div class="version-picker">
- <div class="dropdown">
- <div class="select">
- <span></span>
- <i class="fa fa-chevron-down"></i>
- </div>
- <input type="hidden" name="version">
- <ul class="dropdown-menu">
- <!-- Versions will be added dynamically in version-picker.js -->
- </ul>
- </div>
- </div>
- </div>
- <h1 class="menu-title">Synapse</h1>
- <div class="right-buttons">
- <a href="print.html" title="Print this book" aria-label="Print this book">
- <i id="print-button" class="fa fa-print"></i>
- </a>
- <a href="https://github.com/matrix-org/synapse" title="Git repository" aria-label="Git repository">
- <i id="git-repository-button" class="fa fa-github"></i>
- </a>
- <a href="https://github.com/matrix-org/synapse/edit/develop/docs/metrics-howto.md" title="Suggest an edit" aria-label="Suggest an edit">
- <i id="git-edit-button" class="fa fa-edit"></i>
- </a>
- </div>
- </div>
- <div id="search-wrapper" class="hidden">
- <form id="searchbar-outer" class="searchbar-outer">
- <input type="search" id="searchbar" name="searchbar" placeholder="Search this book ..." aria-controls="searchresults-outer" aria-describedby="searchresults-header">
- </form>
- <div id="searchresults-outer" class="searchresults-outer hidden">
- <div id="searchresults-header" class="searchresults-header"></div>
- <ul id="searchresults">
- </ul>
- </div>
- </div>
- <!-- Apply ARIA attributes after the sidebar and the sidebar toggle button are added to the DOM -->
- <script type="text/javascript">
- document.getElementById('sidebar-toggle').setAttribute('aria-expanded', sidebar === 'visible');
- document.getElementById('sidebar').setAttribute('aria-hidden', sidebar !== 'visible');
- Array.from(document.querySelectorAll('#sidebar a')).forEach(function(link) {
- link.setAttribute('tabIndex', sidebar === 'visible' ? 0 : -1);
- });
- </script>
- <div id="content" class="content">
- <main>
- <!-- Page table of contents -->
- <div class="sidetoc">
- <nav class="pagetoc"></nav>
- </div>
- <h1 id="how-to-monitor-synapse-metrics-using-prometheus"><a class="header" href="#how-to-monitor-synapse-metrics-using-prometheus">How to monitor Synapse metrics using Prometheus</a></h1>
- <ol>
- <li>
- <p>Install Prometheus:</p>
- <p>Follow instructions at
- <a href="http://prometheus.io/docs/introduction/install/">http://prometheus.io/docs/introduction/install/</a></p>
- </li>
- <li>
- <p>Enable Synapse metrics:</p>
- <p>In <code>homeserver.yaml</code>, make sure <code>enable_metrics</code> is
- set to <code>True</code>.</p>
- </li>
- <li>
- <p>Enable the <code>/_synapse/metrics</code> Synapse endpoint that Prometheus uses to
- collect data:</p>
- <p>There are two methods of enabling the metrics endpoint in Synapse.</p>
- <p>The first serves the metrics as a part of the usual web server and
- can be enabled by adding the "metrics" resource to the existing
- listener as such:</p>
- <pre><code class="language-yaml"> resources:
- - names:
- - client
- - metrics
- </code></pre>
- <p>This provides a simple way of adding metrics to your Synapse
- installation, and serves under <code>/_synapse/metrics</code>. If you do not
- wish your metrics be publicly exposed, you will need to either
- filter it out at your load balancer, or use the second method.</p>
- <p>The second method runs the metrics server on a different port, in a
- different thread to Synapse. This can make it more resilient to
- heavy load meaning metrics cannot be retrieved, and can be exposed
- to just internal networks easier. The served metrics are available
- over HTTP only, and will be available at <code>/_synapse/metrics</code>.</p>
- <p>Add a new listener to homeserver.yaml:</p>
- <pre><code class="language-yaml"> listeners:
- - type: metrics
- port: 9000
- bind_addresses:
- - '0.0.0.0'
- </code></pre>
- </li>
- <li>
- <p>Restart Synapse.</p>
- </li>
- <li>
- <p>Add a Prometheus target for Synapse.</p>
- <p>It needs to set the <code>metrics_path</code> to a non-default value (under
- <code>scrape_configs</code>):</p>
- <pre><code class="language-yaml"> - job_name: "synapse"
- scrape_interval: 15s
- metrics_path: "/_synapse/metrics"
- static_configs:
- - targets: ["my.server.here:port"]
- </code></pre>
- <p>where <code>my.server.here</code> is the IP address of Synapse, and <code>port</code> is
- the listener port configured with the <code>metrics</code> resource.</p>
- <p>If your prometheus is older than 1.5.2, you will need to replace
- <code>static_configs</code> in the above with <code>target_groups</code>.</p>
- </li>
- <li>
- <p>Restart Prometheus.</p>
- </li>
- <li>
- <p>Consider using the <a href="https://github.com/matrix-org/synapse/tree/master/contrib/grafana/">grafana dashboard</a>
- and required <a href="https://github.com/matrix-org/synapse/tree/master/contrib/prometheus/">recording rules</a> </p>
- </li>
- </ol>
- <h2 id="monitoring-workers"><a class="header" href="#monitoring-workers">Monitoring workers</a></h2>
- <p>To monitor a Synapse installation using <a href="workers.html">workers</a>,
- every worker needs to be monitored independently, in addition to
- the main homeserver process. This is because workers don't send
- their metrics to the main homeserver process, but expose them
- directly (if they are configured to do so).</p>
- <p>To allow collecting metrics from a worker, you need to add a
- <code>metrics</code> listener to its configuration, by adding the following
- under <code>worker_listeners</code>:</p>
- <pre><code class="language-yaml"> - type: metrics
- bind_address: ''
- port: 9101
- </code></pre>
- <p>The <code>bind_address</code> and <code>port</code> parameters should be set so that
- the resulting listener can be reached by prometheus, and they
- don't clash with an existing worker.
- With this example, the worker's metrics would then be available
- on <code>http://127.0.0.1:9101</code>.</p>
- <p>Example Prometheus target for Synapse with workers:</p>
- <pre><code class="language-yaml"> - job_name: "synapse"
- scrape_interval: 15s
- metrics_path: "/_synapse/metrics"
- static_configs:
- - targets: ["my.server.here:port"]
- labels:
- instance: "my.server"
- job: "master"
- index: 1
- - targets: ["my.workerserver.here:port"]
- labels:
- instance: "my.server"
- job: "generic_worker"
- index: 1
- - targets: ["my.workerserver.here:port"]
- labels:
- instance: "my.server"
- job: "generic_worker"
- index: 2
- - targets: ["my.workerserver.here:port"]
- labels:
- instance: "my.server"
- job: "media_repository"
- index: 1
- </code></pre>
- <p>Labels (<code>instance</code>, <code>job</code>, <code>index</code>) can be defined as anything.
- The labels are used to group graphs in grafana.</p>
- <h2 id="renaming-of-metrics--deprecation-of-old-names-in-12"><a class="header" href="#renaming-of-metrics--deprecation-of-old-names-in-12">Renaming of metrics & deprecation of old names in 1.2</a></h2>
- <p>Synapse 1.2 updates the Prometheus metrics to match the naming
- convention of the upstream <code>prometheus_client</code>. The old names are
- considered deprecated and will be removed in a future version of
- Synapse.</p>
- <table><thead><tr><th>New Name</th><th>Old Name</th></tr></thead><tbody>
- <tr><td>python_gc_objects_collected_total</td><td>python_gc_objects_collected</td></tr>
- <tr><td>python_gc_objects_uncollectable_total</td><td>python_gc_objects_uncollectable</td></tr>
- <tr><td>python_gc_collections_total</td><td>python_gc_collections</td></tr>
- <tr><td>process_cpu_seconds_total</td><td>process_cpu_seconds</td></tr>
- <tr><td>synapse_federation_client_sent_transactions_total</td><td>synapse_federation_client_sent_transactions</td></tr>
- <tr><td>synapse_federation_client_events_processed_total</td><td>synapse_federation_client_events_processed</td></tr>
- <tr><td>synapse_event_processing_loop_count_total</td><td>synapse_event_processing_loop_count</td></tr>
- <tr><td>synapse_event_processing_loop_room_count_total</td><td>synapse_event_processing_loop_room_count</td></tr>
- <tr><td>synapse_util_metrics_block_count_total</td><td>synapse_util_metrics_block_count</td></tr>
- <tr><td>synapse_util_metrics_block_time_seconds_total</td><td>synapse_util_metrics_block_time_seconds</td></tr>
- <tr><td>synapse_util_metrics_block_ru_utime_seconds_total</td><td>synapse_util_metrics_block_ru_utime_seconds</td></tr>
- <tr><td>synapse_util_metrics_block_ru_stime_seconds_total</td><td>synapse_util_metrics_block_ru_stime_seconds</td></tr>
- <tr><td>synapse_util_metrics_block_db_txn_count_total</td><td>synapse_util_metrics_block_db_txn_count</td></tr>
- <tr><td>synapse_util_metrics_block_db_txn_duration_seconds_total</td><td>synapse_util_metrics_block_db_txn_duration_seconds</td></tr>
- <tr><td>synapse_util_metrics_block_db_sched_duration_seconds_total</td><td>synapse_util_metrics_block_db_sched_duration_seconds</td></tr>
- <tr><td>synapse_background_process_start_count_total</td><td>synapse_background_process_start_count</td></tr>
- <tr><td>synapse_background_process_ru_utime_seconds_total</td><td>synapse_background_process_ru_utime_seconds</td></tr>
- <tr><td>synapse_background_process_ru_stime_seconds_total</td><td>synapse_background_process_ru_stime_seconds</td></tr>
- <tr><td>synapse_background_process_db_txn_count_total</td><td>synapse_background_process_db_txn_count</td></tr>
- <tr><td>synapse_background_process_db_txn_duration_seconds_total</td><td>synapse_background_process_db_txn_duration_seconds</td></tr>
- <tr><td>synapse_background_process_db_sched_duration_seconds_total</td><td>synapse_background_process_db_sched_duration_seconds</td></tr>
- <tr><td>synapse_storage_events_persisted_events_total</td><td>synapse_storage_events_persisted_events</td></tr>
- <tr><td>synapse_storage_events_persisted_events_sep_total</td><td>synapse_storage_events_persisted_events_sep</td></tr>
- <tr><td>synapse_storage_events_state_delta_total</td><td>synapse_storage_events_state_delta</td></tr>
- <tr><td>synapse_storage_events_state_delta_single_event_total</td><td>synapse_storage_events_state_delta_single_event</td></tr>
- <tr><td>synapse_storage_events_state_delta_reuse_delta_total</td><td>synapse_storage_events_state_delta_reuse_delta</td></tr>
- <tr><td>synapse_federation_server_received_pdus_total</td><td>synapse_federation_server_received_pdus</td></tr>
- <tr><td>synapse_federation_server_received_edus_total</td><td>synapse_federation_server_received_edus</td></tr>
- <tr><td>synapse_handler_presence_notified_presence_total</td><td>synapse_handler_presence_notified_presence</td></tr>
- <tr><td>synapse_handler_presence_federation_presence_out_total</td><td>synapse_handler_presence_federation_presence_out</td></tr>
- <tr><td>synapse_handler_presence_presence_updates_total</td><td>synapse_handler_presence_presence_updates</td></tr>
- <tr><td>synapse_handler_presence_timers_fired_total</td><td>synapse_handler_presence_timers_fired</td></tr>
- <tr><td>synapse_handler_presence_federation_presence_total</td><td>synapse_handler_presence_federation_presence</td></tr>
- <tr><td>synapse_handler_presence_bump_active_time_total</td><td>synapse_handler_presence_bump_active_time</td></tr>
- <tr><td>synapse_federation_client_sent_edus_total</td><td>synapse_federation_client_sent_edus</td></tr>
- <tr><td>synapse_federation_client_sent_pdu_destinations_count_total</td><td>synapse_federation_client_sent_pdu_destinations:count</td></tr>
- <tr><td>synapse_federation_client_sent_pdu_destinations_total</td><td>synapse_federation_client_sent_pdu_destinations:total</td></tr>
- <tr><td>synapse_handlers_appservice_events_processed_total</td><td>synapse_handlers_appservice_events_processed</td></tr>
- <tr><td>synapse_notifier_notified_events_total</td><td>synapse_notifier_notified_events</td></tr>
- <tr><td>synapse_push_bulk_push_rule_evaluator_push_rules_invalidation_counter_total</td><td>synapse_push_bulk_push_rule_evaluator_push_rules_invalidation_counter</td></tr>
- <tr><td>synapse_push_bulk_push_rule_evaluator_push_rules_state_size_counter_total</td><td>synapse_push_bulk_push_rule_evaluator_push_rules_state_size_counter</td></tr>
- <tr><td>synapse_http_httppusher_http_pushes_processed_total</td><td>synapse_http_httppusher_http_pushes_processed</td></tr>
- <tr><td>synapse_http_httppusher_http_pushes_failed_total</td><td>synapse_http_httppusher_http_pushes_failed</td></tr>
- <tr><td>synapse_http_httppusher_badge_updates_processed_total</td><td>synapse_http_httppusher_badge_updates_processed</td></tr>
- <tr><td>synapse_http_httppusher_badge_updates_failed_total</td><td>synapse_http_httppusher_badge_updates_failed</td></tr>
- </tbody></table>
- <h2 id="removal-of-deprecated-metrics--time-based-counters-becoming-histograms-in-0310"><a class="header" href="#removal-of-deprecated-metrics--time-based-counters-becoming-histograms-in-0310">Removal of deprecated metrics & time based counters becoming histograms in 0.31.0</a></h2>
- <p>The duplicated metrics deprecated in Synapse 0.27.0 have been removed.</p>
- <p>All time duration-based metrics have been changed to be seconds. This
- affects:</p>
- <table><thead><tr><th>msec -> sec metrics</th></tr></thead><tbody>
- <tr><td>python_gc_time</td></tr>
- <tr><td>python_twisted_reactor_tick_time</td></tr>
- <tr><td>synapse_storage_query_time</td></tr>
- <tr><td>synapse_storage_schedule_time</td></tr>
- <tr><td>synapse_storage_transaction_time</td></tr>
- </tbody></table>
- <p>Several metrics have been changed to be histograms, which sort entries
- into buckets and allow better analysis. The following metrics are now
- histograms:</p>
- <table><thead><tr><th>Altered metrics</th></tr></thead><tbody>
- <tr><td>python_gc_time</td></tr>
- <tr><td>python_twisted_reactor_pending_calls</td></tr>
- <tr><td>python_twisted_reactor_tick_time</td></tr>
- <tr><td>synapse_http_server_response_time_seconds</td></tr>
- <tr><td>synapse_storage_query_time</td></tr>
- <tr><td>synapse_storage_schedule_time</td></tr>
- <tr><td>synapse_storage_transaction_time</td></tr>
- </tbody></table>
- <h2 id="block-and-response-metrics-renamed-for-0270"><a class="header" href="#block-and-response-metrics-renamed-for-0270">Block and response metrics renamed for 0.27.0</a></h2>
- <p>Synapse 0.27.0 begins the process of rationalising the duplicate
- <code>*:count</code> metrics reported for the resource tracking for code blocks and
- HTTP requests.</p>
- <p>At the same time, the corresponding <code>*:total</code> metrics are being renamed,
- as the <code>:total</code> suffix no longer makes sense in the absence of a
- corresponding <code>:count</code> metric.</p>
- <p>To enable a graceful migration path, this release just adds new names
- for the metrics being renamed. A future release will remove the old
- ones.</p>
- <p>The following table shows the new metrics, and the old metrics which
- they are replacing.</p>
- <table><thead><tr><th>New name</th><th>Old name</th></tr></thead><tbody>
- <tr><td>synapse_util_metrics_block_count</td><td>synapse_util_metrics_block_timer:count</td></tr>
- <tr><td>synapse_util_metrics_block_count</td><td>synapse_util_metrics_block_ru_utime:count</td></tr>
- <tr><td>synapse_util_metrics_block_count</td><td>synapse_util_metrics_block_ru_stime:count</td></tr>
- <tr><td>synapse_util_metrics_block_count</td><td>synapse_util_metrics_block_db_txn_count:count</td></tr>
- <tr><td>synapse_util_metrics_block_count</td><td>synapse_util_metrics_block_db_txn_duration:count</td></tr>
- <tr><td>synapse_util_metrics_block_time_seconds</td><td>synapse_util_metrics_block_timer:total</td></tr>
- <tr><td>synapse_util_metrics_block_ru_utime_seconds</td><td>synapse_util_metrics_block_ru_utime:total</td></tr>
- <tr><td>synapse_util_metrics_block_ru_stime_seconds</td><td>synapse_util_metrics_block_ru_stime:total</td></tr>
- <tr><td>synapse_util_metrics_block_db_txn_count</td><td>synapse_util_metrics_block_db_txn_count:total</td></tr>
- <tr><td>synapse_util_metrics_block_db_txn_duration_seconds</td><td>synapse_util_metrics_block_db_txn_duration:total</td></tr>
- <tr><td>synapse_http_server_response_count</td><td>synapse_http_server_requests</td></tr>
- <tr><td>synapse_http_server_response_count</td><td>synapse_http_server_response_time:count</td></tr>
- <tr><td>synapse_http_server_response_count</td><td>synapse_http_server_response_ru_utime:count</td></tr>
- <tr><td>synapse_http_server_response_count</td><td>synapse_http_server_response_ru_stime:count</td></tr>
- <tr><td>synapse_http_server_response_count</td><td>synapse_http_server_response_db_txn_count:count</td></tr>
- <tr><td>synapse_http_server_response_count</td><td>synapse_http_server_response_db_txn_duration:count</td></tr>
- <tr><td>synapse_http_server_response_time_seconds</td><td>synapse_http_server_response_time:total</td></tr>
- <tr><td>synapse_http_server_response_ru_utime_seconds</td><td>synapse_http_server_response_ru_utime:total</td></tr>
- <tr><td>synapse_http_server_response_ru_stime_seconds</td><td>synapse_http_server_response_ru_stime:total</td></tr>
- <tr><td>synapse_http_server_response_db_txn_count</td><td>synapse_http_server_response_db_txn_count:total</td></tr>
- <tr><td>synapse_http_server_response_db_txn_duration_seconds</td><td>synapse_http_server_response_db_txn_duration:total</td></tr>
- </tbody></table>
- <h2 id="standard-metric-names"><a class="header" href="#standard-metric-names">Standard Metric Names</a></h2>
- <p>As of synapse version 0.18.2, the format of the process-wide metrics has
- been changed to fit prometheus standard naming conventions. Additionally
- the units have been changed to seconds, from miliseconds.</p>
- <table><thead><tr><th>New name</th><th>Old name</th></tr></thead><tbody>
- <tr><td>process_cpu_user_seconds_total</td><td>process_resource_utime / 1000</td></tr>
- <tr><td>process_cpu_system_seconds_total</td><td>process_resource_stime / 1000</td></tr>
- <tr><td>process_open_fds (no 'type' label)</td><td>process_fds</td></tr>
- </tbody></table>
- <p>The python-specific counts of garbage collector performance have been
- renamed.</p>
- <table><thead><tr><th>New name</th><th>Old name</th></tr></thead><tbody>
- <tr><td>python_gc_time</td><td>reactor_gc_time</td></tr>
- <tr><td>python_gc_unreachable_total</td><td>reactor_gc_unreachable</td></tr>
- <tr><td>python_gc_counts</td><td>reactor_gc_counts</td></tr>
- </tbody></table>
- <p>The twisted-specific reactor metrics have been renamed.</p>
- <table><thead><tr><th>New name</th><th>Old name</th></tr></thead><tbody>
- <tr><td>python_twisted_reactor_pending_calls</td><td>reactor_pending_calls</td></tr>
- <tr><td>python_twisted_reactor_tick_time</td><td>reactor_tick_time</td></tr>
- </tbody></table>
- </main>
- <nav class="nav-wrapper" aria-label="Page navigation">
- <!-- Mobile navigation buttons -->
- <a rel="prev" href="manhole.html" class="mobile-nav-chapters previous" title="Previous chapter" aria-label="Previous chapter" aria-keyshortcuts="Left">
- <i class="fa fa-angle-left"></i>
- </a>
- <a rel="next" href="usage/administration/monitoring/reporting_homeserver_usage_statistics.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
- <i class="fa fa-angle-right"></i>
- </a>
- <div style="clear: both"></div>
- </nav>
- </div>
- </div>
- <nav class="nav-wide-wrapper" aria-label="Page navigation">
- <a rel="prev" href="manhole.html" class="nav-chapters previous" title="Previous chapter" aria-label="Previous chapter" aria-keyshortcuts="Left">
- <i class="fa fa-angle-left"></i>
- </a>
- <a rel="next" href="usage/administration/monitoring/reporting_homeserver_usage_statistics.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
- <i class="fa fa-angle-right"></i>
- </a>
- </nav>
- </div>
- <script type="text/javascript">
- window.playground_copyable = true;
- </script>
- <script src="elasticlunr.min.js" type="text/javascript" charset="utf-8"></script>
- <script src="mark.min.js" type="text/javascript" charset="utf-8"></script>
- <script src="searcher.js" type="text/javascript" charset="utf-8"></script>
- <script src="clipboard.min.js" type="text/javascript" charset="utf-8"></script>
- <script src="highlight.js" type="text/javascript" charset="utf-8"></script>
- <script src="book.js" type="text/javascript" charset="utf-8"></script>
- <!-- Custom JS scripts -->
- <script type="text/javascript" src="docs/website_files/table-of-contents.js"></script>
- <script type="text/javascript" src="docs/website_files/version-picker.js"></script>
- <script type="text/javascript" src="docs/website_files/version.js"></script>
- </body>
- </html>
|
