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| author | erikjohnston <erikjohnston@users.noreply.github.com> | 2024-01-09 13:45:26 +0000 |
|---|---|---|
| committer | erikjohnston <erikjohnston@users.noreply.github.com> | 2024-01-09 13:45:26 +0000 |
| commit | 207b0663db41c91937b1f143e0e9ecd717c37a9e (patch) | |
| tree | 4a5259c990ce31e215732d4bf4031eff789cdf90 /v1.99/workers.html | |
| parent | deploy: 798a507ee01a7eeb57416ceb7db701a6f6e33d3b (diff) | |
| download | synapse-207b0663db41c91937b1f143e0e9ecd717c37a9e.tar.xz | |
deploy: 7109274c651736093c18f1fbd91b2142c218eb95
Diffstat (limited to '')
| -rw-r--r-- | v1.99/workers.html | 934 |
1 files changed, 934 insertions, 0 deletions
diff --git a/v1.99/workers.html b/v1.99/workers.html new file mode 100644 index 0000000000..392247367b --- /dev/null +++ b/v1.99/workers.html @@ -0,0 +1,934 @@ +<!DOCTYPE HTML> +<html lang="en" class="sidebar-visible no-js light"> + <head> + <!-- Book generated using mdBook --> + <meta charset="UTF-8"> + <title>Workers - 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" class="active">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">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" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" 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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/workers.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="scaling-synapse-via-workers"><a class="header" href="#scaling-synapse-via-workers">Scaling synapse via workers</a></h1> +<p>For small instances it is recommended to run Synapse in the default monolith mode. +For larger instances where performance is a concern it can be helpful to split +out functionality into multiple separate python processes. These processes are +called 'workers', and are (eventually) intended to scale horizontally +independently.</p> +<p>Synapse's worker support is under active development and subject to change as +we attempt to rapidly scale ever larger Synapse instances. However we are +documenting it here to help admins needing a highly scalable Synapse instance +similar to the one running <code>matrix.org</code>.</p> +<p>All processes continue to share the same database instance, and as such, +workers only work with PostgreSQL-based Synapse deployments. SQLite should only +be used for demo purposes and any admin considering workers should already be +running PostgreSQL.</p> +<p>See also <a href="https://matrix.org/blog/2020/11/03/how-we-fixed-synapses-scalability">Matrix.org blog post</a> +for a higher level overview.</p> +<h2 id="main-processworker-communication"><a class="header" href="#main-processworker-communication">Main process/worker communication</a></h2> +<p>The processes communicate with each other via a Synapse-specific protocol called +'replication' (analogous to MySQL- or Postgres-style database replication) which +feeds streams of newly written data between processes so they can be kept in +sync with the database state.</p> +<p>When configured to do so, Synapse uses a +<a href="https://redis.io/docs/manual/pubsub/">Redis pub/sub channel</a> to send the replication +stream between all configured Synapse processes. Additionally, processes may +make HTTP requests to each other, primarily for operations which need to wait +for a reply ─ such as sending an event.</p> +<p>All the workers and the main process connect to Redis, which relays replication +commands between processes.</p> +<p>If Redis support is enabled Synapse will use it as a shared cache, as well as a +pub/sub mechanism.</p> +<p>See the <a href="#architectural-diagram">Architectural diagram</a> section at the end for +a visualisation of what this looks like.</p> +<h2 id="setting-up-workers"><a class="header" href="#setting-up-workers">Setting up workers</a></h2> +<p>A Redis server is required to manage the communication between the processes. +The Redis server should be installed following the normal procedure for your +distribution (e.g. <code>apt install redis-server</code> on Debian). It is safe to use an +existing Redis deployment if you have one.</p> +<p>Once installed, check that Redis is running and accessible from the host running +Synapse, for example by executing <code>echo PING | nc -q1 localhost 6379</code> and seeing +a response of <code>+PONG</code>.</p> +<p>The appropriate dependencies must also be installed for Synapse. If using a +virtualenv, these can be installed with:</p> +<pre><code class="language-sh">pip install "matrix-synapse[redis]" +</code></pre> +<p>Note that these dependencies are included when synapse is installed with <code>pip install matrix-synapse[all]</code>. They are also included in the debian packages from +<code>packages.matrix.org</code> and in the docker images at +https://hub.docker.com/r/ectorim/synapse/.</p> +<p>To make effective use of the workers, you will need to configure an HTTP +reverse-proxy such as nginx or haproxy, which will direct incoming requests to +the correct worker, or to the main synapse instance. See +<a href="reverse_proxy.html">the reverse proxy documentation</a> for information on setting up a reverse +proxy.</p> +<p>When using workers, each worker process has its own configuration file which +contains settings specific to that worker, such as the HTTP listener that it +provides (if any), logging configuration, etc.</p> +<p>Normally, the worker processes are configured to read from a shared +configuration file as well as the worker-specific configuration files. This +makes it easier to keep common configuration settings synchronised across all +the processes.</p> +<p>The main process is somewhat special in this respect: it does not normally +need its own configuration file and can take all of its configuration from the +shared configuration file.</p> +<h3 id="shared-configuration"><a class="header" href="#shared-configuration">Shared configuration</a></h3> +<p>Normally, only a few changes are needed to make an existing configuration +file suitable for use with workers:</p> +<ul> +<li>First, you need to enable an +<a href="usage/configuration/config_documentation.html#listeners">"HTTP replication listener"</a> +for the main process</li> +<li>Secondly, you need to enable +<a href="usage/configuration/config_documentation.html#redis">redis-based replication</a></li> +<li>You will need to add an <a href="usage/configuration/config_documentation.html#instance_map"><code>instance_map</code></a> +with the <code>main</code> process defined, as well as the relevant connection information from +it's HTTP <code>replication</code> listener (defined in step 1 above). +<ul> +<li>Note that the <code>host</code> defined is the address the worker needs to look for the <code>main</code> +process at, not necessarily the same address that is bound to.</li> +<li>If you are using Unix sockets for the <code>replication</code> resource, make sure to +use a <code>path</code> to the socket file instead of a <code>port</code>.</li> +</ul> +</li> +<li>Optionally, a <a href="usage/configuration/config_documentation.html#worker_replication_secret">shared secret</a> +can be used to authenticate HTTP traffic between workers. For example:</li> +</ul> +<pre><code class="language-yaml"># extend the existing `listeners` section. This defines the ports that the +# main process will listen on. +listeners: + # The HTTP replication port + - port: 9093 + bind_address: '127.0.0.1' + type: http + resources: + - names: [replication] + +# Add a random shared secret to authenticate traffic. +worker_replication_secret: "" + +redis: + enabled: true + +instance_map: + main: + host: 'localhost' + port: 9093 +</code></pre> +<p>See the <a href="usage/configuration/config_documentation.html">configuration manual</a> +for the full documentation of each option.</p> +<p>Under <strong>no circumstances</strong> should the replication listener be exposed to the +public internet; replication traffic is:</p> +<ul> +<li>always unencrypted</li> +<li>unauthenticated, unless <a href="usage/configuration/config_documentation.html#worker_replication_secret"><code>worker_replication_secret</code></a> +is configured</li> +</ul> +<h3 id="worker-configuration"><a class="header" href="#worker-configuration">Worker configuration</a></h3> +<p>In the config file for each worker, you must specify:</p> +<ul> +<li>The type of worker (<a href="usage/configuration/config_documentation.html#worker_app"><code>worker_app</code></a>). +The currently available worker applications are listed <a href="#available-worker-applications">below</a>.</li> +<li>A unique name for the worker (<a href="usage/configuration/config_documentation.html#worker_name"><code>worker_name</code></a>).</li> +<li>If handling HTTP requests, a <a href="usage/configuration/config_documentation.html#worker_listeners"><code>worker_listeners</code></a> option +with an <code>http</code> listener.</li> +<li><strong>Synapse 1.72 and older:</strong> if handling the <code>^/_matrix/client/v3/keys/upload</code> endpoint, the HTTP URI for +the main process (<code>worker_main_http_uri</code>). This config option is no longer required and is ignored when running Synapse 1.73 and newer.</li> +</ul> +<p>For example:</p> +<pre><code class="language-yaml">worker_app: synapse.app.generic_worker +worker_name: generic_worker1 + +worker_listeners: + - type: http + port: 8083 + x_forwarded: true + resources: + - names: [client, federation] + +worker_log_config: /etc/matrix-synapse/generic-worker-log.yaml +</code></pre> +<p>...is a full configuration for a generic worker instance, which will expose a +plain HTTP endpoint on port 8083 separately serving various endpoints, e.g. +<code>/sync</code>, which are listed below.</p> +<p>Obviously you should configure your reverse-proxy to route the relevant +endpoints to the worker (<code>localhost:8083</code> in the above example).</p> +<h3 id="running-synapse-with-workers"><a class="header" href="#running-synapse-with-workers">Running Synapse with workers</a></h3> +<p>Finally, you need to start your worker processes. This can be done with either +<code>synctl</code> or your distribution's preferred service manager such as <code>systemd</code>. We +recommend the use of <code>systemd</code> where available: for information on setting up +<code>systemd</code> to start synapse workers, see +<a href="systemd-with-workers/">Systemd with Workers</a>. To use <code>synctl</code>, see +<a href="synctl_workers.html">Using synctl with Workers</a>.</p> +<h2 id="start-synapse-with-poetry"><a class="header" href="#start-synapse-with-poetry">Start Synapse with Poetry</a></h2> +<p>The following applies to Synapse installations that have been installed from source using <code>poetry</code>.</p> +<p>You can start the main Synapse process with Poetry by running the following command:</p> +<pre><code class="language-console">poetry run synapse_homeserver --config-file [your homeserver.yaml] +</code></pre> +<p>For worker setups, you can run the following command</p> +<pre><code class="language-console">poetry run synapse_worker --config-file [your homeserver.yaml] --config-file [your worker.yaml] +</code></pre> +<h2 id="available-worker-applications"><a class="header" href="#available-worker-applications">Available worker applications</a></h2> +<h3 id="synapseappgeneric_worker"><a class="header" href="#synapseappgeneric_worker"><code>synapse.app.generic_worker</code></a></h3> +<p>This worker can handle API requests matching the following regular expressions. +These endpoints can be routed to any worker. If a worker is set up to handle a +stream then, for maximum efficiency, additional endpoints should be routed to that +worker: refer to the <a href="#stream-writers">stream writers</a> section below for further +information.</p> +<pre><code># Sync requests +^/_matrix/client/(r0|v3)/sync$ +^/_matrix/client/(api/v1|r0|v3)/events$ +^/_matrix/client/(api/v1|r0|v3)/initialSync$ +^/_matrix/client/(api/v1|r0|v3)/rooms/[^/]+/initialSync$ + +# Federation requests +^/_matrix/federation/v1/event/ +^/_matrix/federation/v1/state/ +^/_matrix/federation/v1/state_ids/ +^/_matrix/federation/v1/backfill/ +^/_matrix/federation/v1/get_missing_events/ +^/_matrix/federation/v1/publicRooms +^/_matrix/federation/v1/query/ +^/_matrix/federation/v1/make_join/ +^/_matrix/federation/v1/make_leave/ +^/_matrix/federation/(v1|v2)/send_join/ +^/_matrix/federation/(v1|v2)/send_leave/ +^/_matrix/federation/(v1|v2)/invite/ +^/_matrix/federation/v1/event_auth/ +^/_matrix/federation/v1/timestamp_to_event/ +^/_matrix/federation/v1/exchange_third_party_invite/ +^/_matrix/federation/v1/user/devices/ +^/_matrix/key/v2/query +^/_matrix/federation/v1/hierarchy/ + +# Inbound federation transaction request +^/_matrix/federation/v1/send/ + +# Client API requests +^/_matrix/client/(api/v1|r0|v3|unstable)/createRoom$ +^/_matrix/client/(api/v1|r0|v3|unstable)/publicRooms$ +^/_matrix/client/(api/v1|r0|v3|unstable)/rooms/.*/joined_members$ +^/_matrix/client/(api/v1|r0|v3|unstable)/rooms/.*/context/.*$ +^/_matrix/client/(api/v1|r0|v3|unstable)/rooms/.*/members$ +^/_matrix/client/(api/v1|r0|v3|unstable)/rooms/.*/state$ +^/_matrix/client/v1/rooms/.*/hierarchy$ +^/_matrix/client/(v1|unstable)/rooms/.*/relations/ +^/_matrix/client/v1/rooms/.*/threads$ +^/_matrix/client/unstable/im.nheko.summary/rooms/.*/summary$ +^/_matrix/client/(r0|v3|unstable)/account/3pid$ +^/_matrix/client/(r0|v3|unstable)/account/whoami$ +^/_matrix/client/(r0|v3|unstable)/devices$ +^/_matrix/client/versions$ +^/_matrix/client/(api/v1|r0|v3|unstable)/voip/turnServer$ +^/_matrix/client/(api/v1|r0|v3|unstable)/rooms/.*/event/ +^/_matrix/client/(api/v1|r0|v3|unstable)/joined_rooms$ +^/_matrix/client/v1/rooms/.*/timestamp_to_event$ +^/_matrix/client/(api/v1|r0|v3|unstable/.*)/rooms/.*/aliases +^/_matrix/client/(api/v1|r0|v3|unstable)/search$ +^/_matrix/client/(r0|v3|unstable)/user/.*/filter(/|$) +^/_matrix/client/(api/v1|r0|v3|unstable)/directory/room/.*$ +^/_matrix/client/(r0|v3|unstable)/capabilities$ +^/_matrix/client/(r0|v3|unstable)/notifications$ + +# Encryption requests +^/_matrix/client/(r0|v3|unstable)/keys/query$ +^/_matrix/client/(r0|v3|unstable)/keys/changes$ +^/_matrix/client/(r0|v3|unstable)/keys/claim$ +^/_matrix/client/(r0|v3|unstable)/room_keys/ +^/_matrix/client/(r0|v3|unstable)/keys/upload/ + +# Registration/login requests +^/_matrix/client/(api/v1|r0|v3|unstable)/login$ +^/_matrix/client/(r0|v3|unstable)/register$ +^/_matrix/client/(r0|v3|unstable)/register/available$ +^/_matrix/client/v1/register/m.login.registration_token/validity$ +^/_matrix/client/(r0|v3|unstable)/password_policy$ + +# Event sending requests +^/_matrix/client/(api/v1|r0|v3|unstable)/rooms/.*/redact +^/_matrix/client/(api/v1|r0|v3|unstable)/rooms/.*/send +^/_matrix/client/(api/v1|r0|v3|unstable)/rooms/.*/state/ +^/_matrix/client/(api/v1|r0|v3|unstable)/rooms/.*/(join|invite|leave|ban|unban|kick)$ +^/_matrix/client/(api/v1|r0|v3|unstable)/join/ +^/_matrix/client/(api/v1|r0|v3|unstable)/knock/ +^/_matrix/client/(api/v1|r0|v3|unstable)/profile/ + +# Account data requests +^/_matrix/client/(r0|v3|unstable)/.*/tags +^/_matrix/client/(r0|v3|unstable)/.*/account_data + +# Receipts requests +^/_matrix/client/(r0|v3|unstable)/rooms/.*/receipt +^/_matrix/client/(r0|v3|unstable)/rooms/.*/read_markers + +# Presence requests +^/_matrix/client/(api/v1|r0|v3|unstable)/presence/ + +# User directory search requests +^/_matrix/client/(r0|v3|unstable)/user_directory/search$ +</code></pre> +<p>Additionally, the following REST endpoints can be handled for GET requests:</p> +<pre><code>^/_matrix/client/(api/v1|r0|v3|unstable)/pushrules/ +</code></pre> +<p>Pagination requests can also be handled, but all requests for a given +room must be routed to the same instance. Additionally, care must be taken to +ensure that the purge history admin API is not used while pagination requests +for the room are in flight:</p> +<pre><code>^/_matrix/client/(api/v1|r0|v3|unstable)/rooms/.*/messages$ +</code></pre> +<p>Additionally, the following endpoints should be included if Synapse is configured +to use SSO (you only need to include the ones for whichever SSO provider you're +using):</p> +<pre><code># for all SSO providers +^/_matrix/client/(api/v1|r0|v3|unstable)/login/sso/redirect +^/_synapse/client/pick_idp$ +^/_synapse/client/pick_username +^/_synapse/client/new_user_consent$ +^/_synapse/client/sso_register$ + +# OpenID Connect requests. +^/_synapse/client/oidc/callback$ + +# SAML requests. +^/_synapse/client/saml2/authn_response$ + +# CAS requests. +^/_matrix/client/(api/v1|r0|v3|unstable)/login/cas/ticket$ +</code></pre> +<p>Ensure that all SSO logins go to a single process. +For multiple workers not handling the SSO endpoints properly, see +<a href="https://github.com/matrix-org/synapse/issues/7530">#7530</a> and +<a href="https://github.com/matrix-org/synapse/issues/9427">#9427</a>.</p> +<p>Note that a <a href="usage/configuration/config_documentation.html#listeners">HTTP listener</a> +with <code>client</code> and <code>federation</code> <code>resources</code> must be configured in the +<a href="usage/configuration/config_documentation.html#worker_listeners"><code>worker_listeners</code></a> +option in the worker config.</p> +<h4 id="load-balancing"><a class="header" href="#load-balancing">Load balancing</a></h4> +<p>It is possible to run multiple instances of this worker app, with incoming requests +being load-balanced between them by the reverse-proxy. However, different endpoints +have different characteristics and so admins +may wish to run multiple groups of workers handling different endpoints so that +load balancing can be done in different ways.</p> +<p>For <code>/sync</code> and <code>/initialSync</code> requests it will be more efficient if all +requests from a particular user are routed to a single instance. This can +be done in reverse proxy by extracting username part from the users access token.</p> +<p>Admins may additionally wish to separate out <code>/sync</code> +requests that have a <code>since</code> query parameter from those that don't (and +<code>/initialSync</code>), as requests that don't are known as "initial sync" that happens +when a user logs in on a new device and can be <em>very</em> resource intensive, so +isolating these requests will stop them from interfering with other users ongoing +syncs.</p> +<p>Example <code>nginx</code> configuration snippet that handles the cases above. This is just an +example and probably requires some changes according to your particular setup:</p> +<pre><code class="language-nginx"># Choose sync worker based on the existence of "since" query parameter +map $arg_since $sync { + default synapse_sync; + '' synapse_initial_sync; +} + +# Extract username from access token passed as URL parameter +map $arg_access_token $accesstoken_from_urlparam { + # Defaults to just passing back the whole accesstoken + default $arg_access_token; + # Try to extract username part from accesstoken URL parameter + "~syt_(?<username>.*?)_.*" $username; +} + +# Extract username from access token passed as authorization header +map $http_authorization $mxid_localpart { + # Defaults to just passing back the whole accesstoken + default $http_authorization; + # Try to extract username part from accesstoken header + "~Bearer syt_(?<username>.*?)_.*" $username; + # if no authorization-header exist, try mapper for URL parameter "access_token" + "" $accesstoken_from_urlparam; +} + +upstream synapse_initial_sync { + # Use the username mapper result for hash key + hash $mxid_localpart consistent; + server 127.0.0.1:8016; + server 127.0.0.1:8036; +} + +upstream synapse_sync { + # Use the username mapper result for hash key + hash $mxid_localpart consistent; + server 127.0.0.1:8013; + server 127.0.0.1:8037; + server 127.0.0.1:8038; + server 127.0.0.1:8039; +} + +# Sync initial/normal +location ~ ^/_matrix/client/(r0|v3)/sync$ { + proxy_pass http://$sync; +} + +# Normal sync +location ~ ^/_matrix/client/(api/v1|r0|v3)/events$ { + proxy_pass http://synapse_sync; +} + +# Initial_sync +location ~ ^/_matrix/client/(api/v1|r0|v3)/initialSync$ { + proxy_pass http://synapse_initial_sync; +} +location ~ ^/_matrix/client/(api/v1|r0|v3)/rooms/[^/]+/initialSync$ { + proxy_pass http://synapse_initial_sync; +} +</code></pre> +<p>Federation and client requests can be balanced via simple round robin.</p> +<p>The inbound federation transaction request <code>^/_matrix/federation/v1/send/</code> +should be balanced by source IP so that transactions from the same remote server +go to the same process.</p> +<p>Registration/login requests can be handled separately purely to help ensure that +unexpected load doesn't affect new logins and sign ups.</p> +<p>Finally, event sending requests can be balanced by the room ID in the URI (or +the full URI, or even just round robin), the room ID is the path component after +<code>/rooms/</code>. If there is a large bridge connected that is sending or may send lots +of events, then a dedicated set of workers can be provisioned to limit the +effects of bursts of events from that bridge on events sent by normal users.</p> +<h4 id="stream-writers"><a class="header" href="#stream-writers">Stream writers</a></h4> +<p>Additionally, the writing of specific streams (such as events) can be moved off +of the main process to a particular worker.</p> +<p>To enable this, the worker must have:</p> +<ul> +<li>An <a href="usage/configuration/config_documentation.html#listeners">HTTP <code>replication</code> listener</a> configured,</li> +<li>Have a <a href="usage/configuration/config_documentation.html#worker_name"><code>worker_name</code></a> +and be listed in the <a href="usage/configuration/config_documentation.html#instance_map"><code>instance_map</code></a> +config.</li> +<li>Have the main process declared on the <a href="usage/configuration/config_documentation.html#instance_map"><code>instance_map</code></a> as well.</li> +</ul> +<p>Note: The same worker can handle multiple streams, but unless otherwise documented, +each stream can only have a single writer.</p> +<p>For example, to move event persistence off to a dedicated worker, the shared +configuration would include:</p> +<pre><code class="language-yaml">instance_map: + main: + host: localhost + port: 8030 + event_persister1: + host: localhost + port: 8034 + +stream_writers: + events: event_persister1 +</code></pre> +<p>An example for a stream writer instance:</p> +<pre><code class="language-yaml">worker_app: synapse.app.generic_worker +worker_name: event_persister1 + +worker_listeners: + - type: http + port: 8034 + resources: + - names: [replication] + + # Enable listener if this stream writer handles endpoints for the `typing` or + # `to_device` streams. Uses a different port to the `replication` listener to + # avoid exposing the `replication` listener publicly. + # + #- type: http + # port: 8035 + # x_forwarded: true + # resources: + # - names: [client] + +worker_log_config: /etc/matrix-synapse/event-persister-log.yaml +</code></pre> +<p>Some of the streams have associated endpoints which, for maximum efficiency, should +be routed to the workers handling that stream. See below for the currently supported +streams and the endpoints associated with them:</p> +<h5 id="the-events-stream"><a class="header" href="#the-events-stream">The <code>events</code> stream</a></h5> +<p>The <code>events</code> stream experimentally supports having multiple writer workers, where load +is sharded between them by room ID. Each writer is called an <em>event persister</em>. They are +responsible for</p> +<ul> +<li>receiving new events,</li> +<li>linking them to those already in the room <a href="development/room-dag-concepts.html">DAG</a>,</li> +<li>persisting them to the DB, and finally</li> +<li>updating the events stream.</li> +</ul> +<p>Because load is sharded in this way, you <em>must</em> restart all worker instances when +adding or removing event persisters.</p> +<p>An <code>event_persister</code> should not be mistaken for an <code>event_creator</code>. +An <code>event_creator</code> listens for requests from clients to create new events and does +so. It will then pass those events over HTTP replication to any configured event +persisters (or the main process if none are configured).</p> +<p>Note that <code>event_creator</code>s and <code>event_persister</code>s are implemented using the same +<a href="#synapseappgeneric_worker"><code>synapse.app.generic_worker</code></a>.</p> +<p>An example <a href="usage/configuration/config_documentation.html#stream_writers"><code>stream_writers</code></a> +configuration with multiple writers:</p> +<pre><code class="language-yaml">stream_writers: + events: + - event_persister1 + - event_persister2 +</code></pre> +<h5 id="the-typing-stream"><a class="header" href="#the-typing-stream">The <code>typing</code> stream</a></h5> +<p>The following endpoints should be routed directly to the worker configured as +the stream writer for the <code>typing</code> stream:</p> +<pre><code>^/_matrix/client/(api/v1|r0|v3|unstable)/rooms/.*/typing +</code></pre> +<h5 id="the-to_device-stream"><a class="header" href="#the-to_device-stream">The <code>to_device</code> stream</a></h5> +<p>The following endpoints should be routed directly to the worker configured as +the stream writer for the <code>to_device</code> stream:</p> +<pre><code>^/_matrix/client/(r0|v3|unstable)/sendToDevice/ +</code></pre> +<h5 id="the-account_data-stream"><a class="header" href="#the-account_data-stream">The <code>account_data</code> stream</a></h5> +<p>The following endpoints should be routed directly to the worker configured as +the stream writer for the <code>account_data</code> stream:</p> +<pre><code>^/_matrix/client/(r0|v3|unstable)/.*/tags +^/_matrix/client/(r0|v3|unstable)/.*/account_data +</code></pre> +<h5 id="the-receipts-stream"><a class="header" href="#the-receipts-stream">The <code>receipts</code> stream</a></h5> +<p>The following endpoints should be routed directly to the worker configured as +the stream writer for the <code>receipts</code> stream:</p> +<pre><code>^/_matrix/client/(r0|v3|unstable)/rooms/.*/receipt +^/_matrix/client/(r0|v3|unstable)/rooms/.*/read_markers +</code></pre> +<h5 id="the-presence-stream"><a class="header" href="#the-presence-stream">The <code>presence</code> stream</a></h5> +<p>The following endpoints should be routed directly to the worker configured as +the stream writer for the <code>presence</code> stream:</p> +<pre><code>^/_matrix/client/(api/v1|r0|v3|unstable)/presence/ +</code></pre> +<h4 id="restrict-outbound-federation-traffic-to-a-specific-set-of-workers"><a class="header" href="#restrict-outbound-federation-traffic-to-a-specific-set-of-workers">Restrict outbound federation traffic to a specific set of workers</a></h4> +<p>The +<a href="usage/configuration/config_documentation.html#outbound_federation_restricted_to"><code>outbound_federation_restricted_to</code></a> +configuration is useful to make sure outbound federation traffic only goes through a +specified subset of workers. This allows you to set more strict access controls (like a +firewall) for all workers and only allow the <code>federation_sender</code>'s to contact the +outside world.</p> +<pre><code class="language-yaml">instance_map: + main: + host: localhost + port: 8030 + federation_sender1: + host: localhost + port: 8034 + +outbound_federation_restricted_to: + - federation_sender1 + +worker_replication_secret: "secret_secret" +</code></pre> +<h4 id="background-tasks"><a class="header" href="#background-tasks">Background tasks</a></h4> +<p>There is also support for moving background tasks to a separate +worker. Background tasks are run periodically or started via replication. Exactly +which tasks are configured to run depends on your Synapse configuration (e.g. if +stats is enabled). This worker doesn't handle any REST endpoints itself.</p> +<p>To enable this, the worker must have a unique +<a href="usage/configuration/config_documentation.html#worker_name"><code>worker_name</code></a> +and can be configured to run background tasks. For example, to move background tasks +to a dedicated worker, the shared configuration would include:</p> +<pre><code class="language-yaml">run_background_tasks_on: background_worker +</code></pre> +<p>You might also wish to investigate the +<a href="#updating-the-user-directory"><code>update_user_directory_from_worker</code></a> and +<a href="#synapseappmedia_repository"><code>media_instance_running_background_jobs</code></a> settings.</p> +<p>An example for a dedicated background worker instance:</p> +<pre><code class="language-yaml">worker_app: synapse.app.generic_worker +worker_name: background_worker + +worker_log_config: /etc/matrix-synapse/background-worker-log.yaml +</code></pre> +<h4 id="updating-the-user-directory"><a class="header" href="#updating-the-user-directory">Updating the User Directory</a></h4> +<p>You can designate one generic worker to update the user directory.</p> +<p>Specify its name in the <a href="usage/configuration/config_documentation.html#update_user_directory_from_worker">shared configuration</a> +as follows:</p> +<pre><code class="language-yaml">update_user_directory_from_worker: worker_name +</code></pre> +<p>This work cannot be load-balanced; please ensure the main process is restarted +after setting this option in the shared configuration!</p> +<p>User directory updates allow REST endpoints matching the following regular +expressions to work:</p> +<pre><code>^/_matrix/client/(r0|v3|unstable)/user_directory/search$ +</code></pre> +<p>The above endpoints can be routed to any worker, though you may choose to route +it to the chosen user directory worker.</p> +<p>This style of configuration supersedes the legacy <code>synapse.app.user_dir</code> +worker application type.</p> +<h4 id="notifying-application-services"><a class="header" href="#notifying-application-services">Notifying Application Services</a></h4> +<p>You can designate one generic worker to send output traffic to Application Services. +Doesn't handle any REST endpoints itself, but you should specify its name in the +<a href="usage/configuration/config_documentation.html#notify_appservices_from_worker">shared configuration</a> +as follows:</p> +<pre><code class="language-yaml">notify_appservices_from_worker: worker_name +</code></pre> +<p>This work cannot be load-balanced; please ensure the main process is restarted +after setting this option in the shared configuration!</p> +<p>This style of configuration supersedes the legacy <code>synapse.app.appservice</code> +worker application type.</p> +<h4 id="push-notifications"><a class="header" href="#push-notifications">Push Notifications</a></h4> +<p>You can designate generic worker to sending push notifications to +a <a href="https://spec.matrix.org/v1.5/push-gateway-api/">push gateway</a> such as +<a href="https://github.com/vector-im/sygnal">sygnal</a> and email.</p> +<p>This will stop the main process sending push notifications.</p> +<p>The workers responsible for sending push notifications can be defined using the +<a href="usage/configuration/config_documentation.html#pusher_instances"><code>pusher_instances</code></a> +option. For example:</p> +<pre><code class="language-yaml">pusher_instances: + - pusher_worker1 + - pusher_worker2 +</code></pre> +<p>Multiple workers can be added to this map, in which case the work is balanced +across them. Ensure the main process and all pusher workers are restarted after changing +this option.</p> +<p>These workers don't need to accept incoming HTTP requests to send push notifications, +so no additional reverse proxy configuration is required for pusher workers.</p> +<p>This style of configuration supersedes the legacy <code>synapse.app.pusher</code> +worker application type.</p> +<h3 id="synapseapppusher"><a class="header" href="#synapseapppusher"><code>synapse.app.pusher</code></a></h3> +<p>It is likely this option will be deprecated in the future and is not recommended for new +installations. Instead, <a href="#push-notifications">use <code>synapse.app.generic_worker</code> with the <code>pusher_instances</code></a>.</p> +<p>Handles sending push notifications to sygnal and email. Doesn't handle any +REST endpoints itself, but you should set +<a href="usage/configuration/config_documentation.html#start_pushers"><code>start_pushers: false</code></a> in the +shared configuration file to stop the main synapse sending push notifications.</p> +<p>To run multiple instances at once the +<a href="usage/configuration/config_documentation.html#pusher_instances"><code>pusher_instances</code></a> +option should list all pusher instances by their +<a href="usage/configuration/config_documentation.html#worker_name"><code>worker_name</code></a>, e.g.:</p> +<pre><code class="language-yaml">start_pushers: false +pusher_instances: + - pusher_worker1 + - pusher_worker2 +</code></pre> +<p>An example for a pusher instance:</p> +<pre><code class="language-yaml">worker_app: synapse.app.pusher +worker_name: pusher_worker1 + +worker_log_config: /etc/matrix-synapse/pusher-worker-log.yaml +</code></pre> +<h3 id="synapseappappservice"><a class="header" href="#synapseappappservice"><code>synapse.app.appservice</code></a></h3> +<p><strong>Deprecated as of Synapse v1.59.</strong> <a href="#notifying-application-services">Use <code>synapse.app.generic_worker</code> with the +<code>notify_appservices_from_worker</code> option instead.</a></p> +<p>Handles sending output traffic to Application Services. Doesn't handle any +REST endpoints itself, but you should set <code>notify_appservices: False</code> in the +shared configuration file to stop the main synapse sending appservice notifications.</p> +<p>Note this worker cannot be load-balanced: only one instance should be active.</p> +<h3 id="synapseappfederation_sender"><a class="header" href="#synapseappfederation_sender"><code>synapse.app.federation_sender</code></a></h3> +<p>It is likely this option will be deprecated in the future and not recommended for +new installations. Instead, <a href="usage/configuration/config_documentation.html#federation_sender_instances">use <code>synapse.app.generic_worker</code> with the <code>federation_sender_instances</code></a>.</p> +<p>Handles sending federation traffic to other servers. Doesn't handle any +REST endpoints itself, but you should set +<a href="usage/configuration/config_documentation.html#send_federation"><code>send_federation: false</code></a> +in the shared configuration file to stop the main synapse sending this traffic.</p> +<p>If running multiple federation senders then you must list each +instance in the +<a href="usage/configuration/config_documentation.html#federation_sender_instances"><code>federation_sender_instances</code></a> +option by their +<a href="usage/configuration/config_documentation.html#worker_name"><code>worker_name</code></a>. +All instances must be stopped and started when adding or removing instances. +For example:</p> +<pre><code class="language-yaml">send_federation: false +federation_sender_instances: + - federation_sender1 + - federation_sender2 +</code></pre> +<p>An example for a federation sender instance:</p> +<pre><code class="language-yaml">worker_app: synapse.app.federation_sender +worker_name: federation_sender1 + +worker_log_config: /etc/matrix-synapse/federation-sender-log.yaml +</code></pre> +<h3 id="synapseappmedia_repository"><a class="header" href="#synapseappmedia_repository"><code>synapse.app.media_repository</code></a></h3> +<p>Handles the media repository. It can handle all endpoints starting with:</p> +<pre><code>/_matrix/media/ +</code></pre> +<p>... and the following regular expressions matching media-specific administration APIs:</p> +<pre><code>^/_synapse/admin/v1/purge_media_cache$ +^/_synapse/admin/v1/room/.*/media.*$ +^/_synapse/admin/v1/user/.*/media.*$ +^/_synapse/admin/v1/media/.*$ +^/_synapse/admin/v1/quarantine_media/.*$ +^/_synapse/admin/v1/users/.*/media$ +</code></pre> +<p>You should also set +<a href="usage/configuration/config_documentation.html#enable_media_repo"><code>enable_media_repo: False</code></a> +in the shared configuration +file to stop the main synapse running background jobs related to managing the +media repository. Note that doing so will prevent the main process from being +able to handle the above endpoints.</p> +<p>In the <code>media_repository</code> worker configuration file, configure the +<a href="usage/configuration/config_documentation.html#listeners">HTTP listener</a> to +expose the <code>media</code> resource. For example:</p> +<pre><code class="language-yaml">worker_app: synapse.app.media_repository +worker_name: media_worker + +worker_listeners: + - type: http + port: 8085 + x_forwarded: true + resources: + - names: [media] + +worker_log_config: /etc/matrix-synapse/media-worker-log.yaml +</code></pre> +<p>Note that if running multiple media repositories they must be on the same server +and you must specify a single instance to run the background tasks in the +<a href="usage/configuration/config_documentation.html#media_instance_running_background_jobs">shared configuration</a>, +e.g.:</p> +<pre><code class="language-yaml">media_instance_running_background_jobs: "media-repository-1" +</code></pre> +<p>Note that if a reverse proxy is used , then <code>/_matrix/media/</code> must be routed for both inbound client and federation requests (if they are handled separately).</p> +<h3 id="synapseappuser_dir"><a class="header" href="#synapseappuser_dir"><code>synapse.app.user_dir</code></a></h3> +<p><strong>Deprecated as of Synapse v1.59.</strong> <a href="#updating-the-user-directory">Use <code>synapse.app.generic_worker</code> with the +<code>update_user_directory_from_worker</code> option instead.</a></p> +<p>Handles searches in the user directory. It can handle REST endpoints matching +the following regular expressions:</p> +<pre><code>^/_matrix/client/(r0|v3|unstable)/user_directory/search$ +</code></pre> +<p>When using this worker you must also set <code>update_user_directory: false</code> in the +shared configuration file to stop the main synapse running background +jobs related to updating the user directory.</p> +<p>Above endpoint is not <em>required</em> to be routed to this worker. By default, +<code>update_user_directory</code> is set to <code>true</code>, which means the main process +will handle updates. All workers configured with <code>client</code> can handle the above +endpoint as long as either this worker or the main process are configured to +handle it, and are online.</p> +<p>If <code>update_user_directory</code> is set to <code>false</code>, and this worker is not running, +the above endpoint may give outdated results.</p> +<h3 id="historical-apps"><a class="header" href="#historical-apps">Historical apps</a></h3> +<p>The following used to be separate worker application types, but are now +equivalent to <code>synapse.app.generic_worker</code>:</p> +<ul> +<li><code>synapse.app.client_reader</code></li> +<li><code>synapse.app.event_creator</code></li> +<li><code>synapse.app.federation_reader</code></li> +<li><code>synapse.app.federation_sender</code></li> +<li><code>synapse.app.frontend_proxy</code></li> +<li><code>synapse.app.pusher</code></li> +<li><code>synapse.app.synchrotron</code></li> +</ul> +<h2 id="migration-from-old-config"><a class="header" href="#migration-from-old-config">Migration from old config</a></h2> +<p>A main change that has occurred is the merging of worker apps into +<code>synapse.app.generic_worker</code>. This change is backwards compatible and so no +changes to the config are required.</p> +<p>To migrate apps to use <code>synapse.app.generic_worker</code> simply update the +<code>worker_app</code> option in the worker configs, and where worker are started (e.g. +in systemd service files, but not required for synctl).</p> +<h2 id="architectural-diagram"><a class="header" href="#architectural-diagram">Architectural diagram</a></h2> +<p>The following shows an example setup using Redis and a reverse proxy:</p> +<pre><code> Clients & Federation + | + v + +-----------+ + | | + | Reverse | + | Proxy | + | | + +-----------+ + | | | + | | | HTTP requests + +-------------------+ | +-----------+ + | +---+ | + | | | + v v v ++--------------+ +--------------+ +--------------+ +--------------+ +| Main | | Generic | | Generic | | Event | +| Process | | Worker 1 | | Worker 2 | | Persister | ++--------------+ +--------------+ +--------------+ +--------------+ + ^ ^ | ^ | | ^ | | ^ ^ + | | | | | | | | | | | + | | | | | HTTP | | | | | | + | +----------+<--|---|---------+<--|---|---------+ | | + | | +-------------|-->+-------------+ | + | | | | + | | | | + v v v v +====================================================================== + Redis pub/sub channel +</code></pre> + + </main> + + <nav class="nav-wrapper" aria-label="Page navigation"> + <!-- Mobile navigation buttons --> + <a rel="prev" href="modules/porting_legacy_module.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="synctl_workers.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="modules/porting_legacy_module.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="synctl_workers.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> |