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| author | reivilibre <reivilibre@users.noreply.github.com> | 2024-01-23 14:28:23 +0000 |
|---|---|---|
| committer | reivilibre <reivilibre@users.noreply.github.com> | 2024-01-23 14:28:23 +0000 |
| commit | 19b3bcd7034792a1b5ce3d9ec8288b4b57079f53 (patch) | |
| tree | 462931016b9ffbc7d9b5439ea8bd8402484c922e /v1.100/metrics-howto.html | |
| parent | deploy: 8459ac9be2e8036f9a9c49d81fd57943b1421502 (diff) | |
| download | synapse-19b3bcd7034792a1b5ce3d9ec8288b4b57079f53.tar.xz | |
deploy: f3664556820efca054c9215e8ff24146cfde2648
Diffstat (limited to 'v1.100/metrics-howto.html')
| -rw-r--r-- | v1.100/metrics-howto.html | 477 |
1 files changed, 477 insertions, 0 deletions
diff --git a/v1.100/metrics-howto.html b/v1.100/metrics-howto.html new file mode 100644 index 0000000000..8a18e621eb --- /dev/null +++ b/v1.100/metrics-howto.html @@ -0,0 +1,477 @@ +<!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><ol class="section"><li class="chapter-item expanded "><a href="setup/turn/coturn.html">coturn TURN server</a></li><li class="chapter-item expanded "><a href="setup/turn/eturnal.html">eturnal TURN server</a></li></ol></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/add_extra_fields_to_client_events_unsigned.html">Add extra fields to client events unsigned section 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/experimental_features.html">Experimental Features</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="development/synapse_architecture/streams.html">Streams</a></li><li class="chapter-item expanded "><a href="tcp_replication.html">TCP Replication</a></li><li class="chapter-item expanded "><a href="development/synapse_architecture/faster_joins.html">Faster remote joins</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" 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(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/element-hq/synapse" title="Git repository" aria-label="Git repository"> + <i id="git-repository-button" class="fa fa-github"></i> + </a> + <a href="https://github.com/element-hq/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 <code>metrics</code> resource to the existing +listener as such as in this example:</p> +<pre><code class="language-yaml">listeners: + - port: 8008 + tls: false + type: http + x_forwarded: true + bind_addresses: ['::1', '127.0.0.1'] + + resources: + # added "metrics" in this line + - names: [client, federation, metrics] + compress: false +</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 as in this example:</p> +<pre><code class="language-yaml">listeners: + - port: 8008 + tls: false + type: http + x_forwarded: true + bind_addresses: ['::1', '127.0.0.1'] + + resources: + - names: [client, federation] + compress: false + + # beginning of the new metrics listener + - port: 9000 + type: metrics + bind_addresses: ['::1', '127.0.0.1'] +</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/element-hq/synapse/tree/master/contrib/grafana/">grafana dashboard</a> +and required <a href="https://github.com/element-hq/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. +<strong>The old names will be disabled by default in Synapse v1.71.0 and removed +altogether in Synapse v1.73.0.</strong></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_caches_cache_hits</td><td>synapse_util_caches_cache:hits</td></tr> +<tr><td>synapse_util_caches_cache_size</td><td>synapse_util_caches_cache:size</td></tr> +<tr><td>synapse_util_caches_cache_evicted_size</td><td>synapse_util_caches_cache:evicted_size</td></tr> +<tr><td>synapse_util_caches_cache</td><td>synapse_util_caches_cache:total</td></tr> +<tr><td>synapse_util_caches_response_cache_size</td><td>synapse_util_caches_response_cache:size</td></tr> +<tr><td>synapse_util_caches_response_cache_hits</td><td>synapse_util_caches_response_cache:hits</td></tr> +<tr><td>synapse_util_caches_response_cache_evicted_size</td><td>synapse_util_caches_response_cache:evicted_size</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> +<tr><td>synapse_admin_mau_current</td><td>synapse_admin_mau:current</td></tr> +<tr><td>synapse_admin_mau_max</td><td>synapse_admin_mau:max</td></tr> +<tr><td>synapse_admin_mau_registered_reserved_users</td><td>synapse_admin_mau:registered_reserved_users</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 milliseconds.</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> |