414 lines
38 KiB
HTML
414 lines
38 KiB
HTML
<!DOCTYPE HTML>
|
|
<html lang="en" class="sidebar-visible no-js light">
|
|
<head>
|
|
<!-- Book generated using mdBook -->
|
|
<meta charset="UTF-8">
|
|
<title>Admin FAQ - 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/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">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" class="active">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" aria-expanded="false" aria-controls="theme-list">
|
|
<i class="fa fa-paint-brush"></i>
|
|
</button>
|
|
<ul id="theme-list" class="theme-popup" aria-label="Themes" role="menu">
|
|
<li role="none"><button role="menuitem" class="theme" id="light">Light (default)</button></li>
|
|
<li role="none"><button role="menuitem" class="theme" id="rust">Rust</button></li>
|
|
<li role="none"><button role="menuitem" class="theme" id="coal">Coal</button></li>
|
|
<li role="none"><button role="menuitem" class="theme" id="navy">Navy</button></li>
|
|
<li role="none"><button role="menuitem" class="theme" id="ayu">Ayu</button></li>
|
|
</ul>
|
|
<button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
|
|
<i class="fa fa-search"></i>
|
|
</button>
|
|
<div class="version-picker">
|
|
<div class="dropdown">
|
|
<div class="select">
|
|
<span></span>
|
|
<i class="fa fa-chevron-down"></i>
|
|
</div>
|
|
<input type="hidden" name="version">
|
|
<ul class="dropdown-menu">
|
|
<!-- Versions will be added dynamically in version-picker.js -->
|
|
</ul>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
<h1 class="menu-title">Synapse</h1>
|
|
|
|
<div class="right-buttons">
|
|
<a href="../../print.html" title="Print this book" aria-label="Print this book">
|
|
<i id="print-button" class="fa fa-print"></i>
|
|
</a>
|
|
<a href="https://github.com/matrix-org/synapse" title="Git repository" aria-label="Git repository">
|
|
<i id="git-repository-button" class="fa fa-github"></i>
|
|
</a>
|
|
<a href="https://github.com/matrix-org/synapse/edit/develop/docs/usage/administration/admin_faq.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>
|
|
|
|
<h2 id="admin-faq"><a class="header" href="#admin-faq">Admin FAQ</a></h2>
|
|
<h2 id="how-do-i-become-a-server-admin"><a class="header" href="#how-do-i-become-a-server-admin">How do I become a server admin?</a></h2>
|
|
<p>If your server already has an admin account you should use the
|
|
<a href="../../admin_api/user_admin_api.html#change-whether-a-user-is-a-server-administrator-or-not">User Admin API</a>
|
|
to promote other accounts to become admins.</p>
|
|
<p>If you don't have any admin accounts yet you won't be able to use the admin API,
|
|
so you'll have to edit the database manually. Manually editing the database is
|
|
generally not recommended so once you have an admin account: use the admin APIs
|
|
to make further changes.</p>
|
|
<pre><code class="language-sql">UPDATE users SET admin = 1 WHERE name = '@foo:bar.com';
|
|
</code></pre>
|
|
<h2 id="what-servers-are-my-server-talking-to"><a class="header" href="#what-servers-are-my-server-talking-to">What servers are my server talking to?</a></h2>
|
|
<p>Run this sql query on your db:</p>
|
|
<pre><code class="language-sql">SELECT * FROM destinations;
|
|
</code></pre>
|
|
<h2 id="what-servers-are-currently-participating-in-this-room"><a class="header" href="#what-servers-are-currently-participating-in-this-room">What servers are currently participating in this room?</a></h2>
|
|
<p>Run this sql query on your db:</p>
|
|
<pre><code class="language-sql">SELECT DISTINCT split_part(state_key, ':', 2)
|
|
FROM current_state_events
|
|
WHERE room_id = '!cURbafjkfsMDVwdRDQ:matrix.org' AND membership = 'join';
|
|
</code></pre>
|
|
<h2 id="what-users-are-registered-on-my-server"><a class="header" href="#what-users-are-registered-on-my-server">What users are registered on my server?</a></h2>
|
|
<pre><code class="language-sql">SELECT NAME from users;
|
|
</code></pre>
|
|
<h2 id="how-can-i-export-user-data"><a class="header" href="#how-can-i-export-user-data">How can I export user data?</a></h2>
|
|
<p>Synapse includes a Python command to export data for a specific user. It takes the homeserver
|
|
configuration file and the full Matrix ID of the user to export:</p>
|
|
<pre><code class="language-console">python -m synapse.app.admin_cmd -c <config_file> export-data <user_id> --output-directory <directory_path>
|
|
</code></pre>
|
|
<p>If you uses <a href="../../development/dependencies.html#managing-dependencies-with-poetry">Poetry</a>
|
|
to run Synapse:</p>
|
|
<pre><code class="language-console">poetry run python -m synapse.app.admin_cmd -c <config_file> export-data <user_id> --output-directory <directory_path>
|
|
</code></pre>
|
|
<p>The directory to store the export data in can be customised with the
|
|
<code>--output-directory</code> parameter; ensure that the provided directory is
|
|
empty. If this parameter is not provided, Synapse defaults to creating
|
|
a temporary directory (which starts with "synapse-exfiltrate") in <code>/tmp</code>,
|
|
<code>/var/tmp</code>, or <code>/usr/tmp</code>, in that order.</p>
|
|
<p>The exported data has the following layout:</p>
|
|
<pre><code>output-directory
|
|
├───rooms
|
|
│ └───<room_id>
|
|
│ ├───events
|
|
│ ├───state
|
|
│ ├───invite_state
|
|
│ └───knock_state
|
|
├───user_data
|
|
│ ├───account_data
|
|
│ │ ├───global
|
|
│ │ └───<room_id>
|
|
│ ├───connections
|
|
│ ├───devices
|
|
│ └───profile
|
|
└───media_ids
|
|
└───<media_id>
|
|
</code></pre>
|
|
<p>The <code>media_ids</code> folder contains only the metadata of the media uploaded by the user.
|
|
It does not contain the media itself.
|
|
Furthermore, only the <code>media_ids</code> that Synapse manages itself are exported.
|
|
If another media repository (e.g. <a href="https://github.com/turt2live/matrix-media-repo">matrix-media-repo</a>)
|
|
is used, the data must be exported separately.</p>
|
|
<p>With the <code>media_ids</code> the media files can be downloaded.
|
|
Media that have been sent in encrypted rooms are only retrieved in encrypted form.
|
|
The following script can help with download the media files:</p>
|
|
<pre><code class="language-bash">#!/usr/bin/env bash
|
|
|
|
# Parameters
|
|
#
|
|
# source_directory: Directory which contains the export with the media_ids.
|
|
# target_directory: Directory into which all files are to be downloaded.
|
|
# repository_url: Address of the media repository resp. media worker.
|
|
# serverName: Name of the server (`server_name` from homeserver.yaml).
|
|
#
|
|
# Example:
|
|
# ./download_media.sh /tmp/export_data/media_ids/ /tmp/export_data/media_files/ http://localhost:8008 matrix.example.com
|
|
|
|
source_directory=$1
|
|
target_directory=$2
|
|
repository_url=$3
|
|
serverName=$4
|
|
|
|
mkdir -p $target_directory
|
|
|
|
for file in $source_directory/*; do
|
|
filename=$(basename ${file})
|
|
url=$repository_url/_matrix/media/v3/download/$serverName/$filename
|
|
echo "Downloading $filename - $url"
|
|
if ! wget -o /dev/null -P $target_directory $url; then
|
|
echo "Could not download $filename"
|
|
fi
|
|
done
|
|
</code></pre>
|
|
<h2 id="manually-resetting-passwords"><a class="header" href="#manually-resetting-passwords">Manually resetting passwords</a></h2>
|
|
<p>Users can reset their password through their client. Alternatively, a server admin
|
|
can reset a user's password using the <a href="../../admin_api/user_admin_api.html#reset-password">admin API</a>.</p>
|
|
<h2 id="i-have-a-problem-with-my-server-can-i-just-delete-my-database-and-start-again"><a class="header" href="#i-have-a-problem-with-my-server-can-i-just-delete-my-database-and-start-again">I have a problem with my server. Can I just delete my database and start again?</a></h2>
|
|
<p>Deleting your database is unlikely to make anything better.</p>
|
|
<p>It's easy to make the mistake of thinking that you can start again from a clean
|
|
slate by dropping your database, but things don't work like that in a federated
|
|
network: lots of other servers have information about your server.</p>
|
|
<p>For example: other servers might think that you are in a room, your server will
|
|
think that you are not, and you'll probably be unable to interact with that room
|
|
in a sensible way ever again.</p>
|
|
<p>In general, there are better solutions to any problem than dropping the database.
|
|
Come and seek help in https://matrix.to/#/#synapse:matrix.org.</p>
|
|
<p>There are two exceptions when it might be sensible to delete your database and start again:</p>
|
|
<ul>
|
|
<li>You have <em>never</em> joined any rooms which are federated with other servers. For
|
|
instance, a local deployment which the outside world can't talk to.</li>
|
|
<li>You are changing the <code>server_name</code> in the homeserver configuration. In effect
|
|
this makes your server a completely new one from the point of view of the network,
|
|
so in this case it makes sense to start with a clean database.
|
|
(In both cases you probably also want to clear out the media_store.)</li>
|
|
</ul>
|
|
<h2 id="ive-stuffed-up-access-to-my-room-how-can-i-delete-it-to-free-up-the-alias"><a class="header" href="#ive-stuffed-up-access-to-my-room-how-can-i-delete-it-to-free-up-the-alias">I've stuffed up access to my room, how can I delete it to free up the alias?</a></h2>
|
|
<p>Using the following curl command:</p>
|
|
<pre><code class="language-console">curl -H 'Authorization: Bearer <access-token>' -X DELETE https://matrix.org/_matrix/client/r0/directory/room/<room-alias>
|
|
</code></pre>
|
|
<p><code><access-token></code> - can be obtained in riot by looking in the riot settings, down the bottom is:
|
|
Access Token:<click to reveal></p>
|
|
<p><code><room-alias></code> - the room alias, eg. #my_room:matrix.org this possibly needs to be URL encoded also, for example %23my_room%3Amatrix.org</p>
|
|
<h2 id="how-can-i-find-the-lines-corresponding-to-a-given-http-request-in-my-homeserver-log"><a class="header" href="#how-can-i-find-the-lines-corresponding-to-a-given-http-request-in-my-homeserver-log">How can I find the lines corresponding to a given HTTP request in my homeserver log?</a></h2>
|
|
<p>Synapse tags each log line according to the HTTP request it is processing. When
|
|
it finishes processing each request, it logs a line containing the words
|
|
<code>Processed request: </code>. For example:</p>
|
|
<pre><code>2019-02-14 22:35:08,196 - synapse.access.http.8008 - 302 - INFO - GET-37 - ::1 - 8008 - {@richvdh:localhost} Processed request: 0.173sec/0.001sec (0.002sec, 0.000sec) (0.027sec/0.026sec/2) 687B 200 "GET /_matrix/client/r0/sync HTTP/1.1" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36" [0 dbevts]"
|
|
</code></pre>
|
|
<p>Here we can see that the request has been tagged with <code>GET-37</code>. (The tag depends
|
|
on the method of the HTTP request, so might start with <code>GET-</code>, <code>PUT-</code>, <code>POST-</code>,
|
|
<code>OPTIONS-</code> or <code>DELETE-</code>.) So to find all lines corresponding to this request, we can do:</p>
|
|
<pre><code class="language-console">grep 'GET-37' homeserver.log
|
|
</code></pre>
|
|
<p>If you want to paste that output into a github issue or matrix room, please
|
|
remember to surround it with triple-backticks (```) to make it legible
|
|
(see <a href="https://help.github.com/en/articles/basic-writing-and-formatting-syntax#quoting-code">quoting code</a>).</p>
|
|
<h2 id="what-do-all-those-fields-in-the-processed-line-mean"><a class="header" href="#what-do-all-those-fields-in-the-processed-line-mean">What do all those fields in the 'Processed' line mean?</a></h2>
|
|
<p>See <a href="request_log.html">Request log format</a>.</p>
|
|
<h2 id="what-are-the-biggest-rooms-on-my-server"><a class="header" href="#what-are-the-biggest-rooms-on-my-server">What are the biggest rooms on my server?</a></h2>
|
|
<pre><code class="language-sql">SELECT s.canonical_alias, g.room_id, count(*) AS num_rows
|
|
FROM
|
|
state_groups_state AS g,
|
|
room_stats_state AS s
|
|
WHERE g.room_id = s.room_id
|
|
GROUP BY s.canonical_alias, g.room_id
|
|
ORDER BY num_rows desc
|
|
LIMIT 10;
|
|
</code></pre>
|
|
<p>You can also use the <a href="../../admin_api/rooms.html#list-room-api">List Room API</a>
|
|
and <code>order_by</code> <code>state_events</code>.</p>
|
|
<h2 id="people-cant-accept-room-invitations-from-me"><a class="header" href="#people-cant-accept-room-invitations-from-me">People can't accept room invitations from me</a></h2>
|
|
<p>The typical failure mode here is that you send an invitation to someone
|
|
to join a room or direct chat, but when they go to accept it, they get an
|
|
error (typically along the lines of "Invalid signature"). They might see
|
|
something like the following in their logs:</p>
|
|
<pre><code>2019-09-11 19:32:04,271 - synapse.federation.transport.server - 288 - WARNING - GET-11752 - authenticate_request failed: 401: Invalid signature for server <server> with key ed25519:a_EqML: Unable to verify signature for <server>
|
|
</code></pre>
|
|
<p>This is normally caused by a misconfiguration in your reverse-proxy. See <a href="../../reverse_proxy.html">the reverse proxy docs</a> and double-check that your settings are correct.</p>
|
|
<h2 id="help-synapse-is-slow-and-eats-all-my-ramcpu"><a class="header" href="#help-synapse-is-slow-and-eats-all-my-ramcpu">Help!! Synapse is slow and eats all my RAM/CPU!</a></h2>
|
|
<p>First, ensure you are running the latest version of Synapse, using Python 3
|
|
with a <a href="../../postgres.html">PostgreSQL database</a>.</p>
|
|
<p>Synapse's architecture is quite RAM hungry currently - we deliberately
|
|
cache a lot of recent room data and metadata in RAM in order to speed up
|
|
common requests. We'll improve this in the future, but for now the easiest
|
|
way to either reduce the RAM usage (at the risk of slowing things down)
|
|
is to set the almost-undocumented <code>SYNAPSE_CACHE_FACTOR</code> environment
|
|
variable. The default is 0.5, which can be decreased to reduce RAM usage
|
|
in memory constrained environments, or increased if performance starts to
|
|
degrade.</p>
|
|
<p>However, degraded performance due to a low cache factor, common on
|
|
machines with slow disks, often leads to explosions in memory use due
|
|
backlogged requests. In this case, reducing the cache factor will make
|
|
things worse. Instead, try increasing it drastically. 2.0 is a good
|
|
starting value.</p>
|
|
<p>Using <a href="https://jemalloc.net">libjemalloc</a> can also yield a significant
|
|
improvement in overall memory use, and especially in terms of giving back
|
|
RAM to the OS. To use it, the library must simply be put in the
|
|
LD_PRELOAD environment variable when launching Synapse. On Debian, this
|
|
can be done by installing the <code>libjemalloc1</code> package and adding this
|
|
line to <code>/etc/default/matrix-synapse</code>:</p>
|
|
<pre><code>LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libjemalloc.so.1
|
|
</code></pre>
|
|
<p>This made a significant difference on Python 2.7 - it's unclear how
|
|
much of an improvement it provides on Python 3.x.</p>
|
|
<p>If you're encountering high CPU use by the Synapse process itself, you
|
|
may be affected by a bug with presence tracking that leads to a
|
|
massive excess of outgoing federation requests (see <a href="https://github.com/matrix-org/synapse/issues/3971">discussion</a>). If metrics
|
|
indicate that your server is also issuing far more outgoing federation
|
|
requests than can be accounted for by your users' activity, this is a
|
|
likely cause. The misbehavior can be worked around by disabling presence
|
|
in the Synapse config file: <a href="../configuration/config_documentation.html#presence">see here</a>.</p>
|
|
<h2 id="running-out-of-file-handles"><a class="header" href="#running-out-of-file-handles">Running out of File Handles</a></h2>
|
|
<p>If Synapse runs out of file handles, it typically fails badly - live-locking
|
|
at 100% CPU, and/or failing to accept new TCP connections (blocking the
|
|
connecting client). Matrix currently can legitimately use a lot of file handles,
|
|
thanks to busy rooms like <code>#matrix:matrix.org</code> containing hundreds of participating
|
|
servers. The first time a server talks in a room it will try to connect
|
|
simultaneously to all participating servers, which could exhaust the available
|
|
file descriptors between DNS queries & HTTPS sockets, especially if DNS is slow
|
|
to respond. (We need to improve the routing algorithm used to be better than
|
|
full mesh, but as of March 2019 this hasn't happened yet).</p>
|
|
<p>If you hit this failure mode, we recommend increasing the maximum number of
|
|
open file handles to be at least 4096 (assuming a default of 1024 or 256).
|
|
This is typically done by editing <code>/etc/security/limits.conf</code></p>
|
|
<p>Separately, Synapse may leak file handles if inbound HTTP requests get stuck
|
|
during processing - e.g. blocked behind a lock or talking to a remote server etc.
|
|
This is best diagnosed by matching up the 'Received request' and 'Processed request'
|
|
log lines and looking for any 'Processed request' lines which take more than
|
|
a few seconds to execute. Please let us know at <a href="https://matrix.to/#/#synapse-dev:matrix.org"><code>#synapse:matrix.org</code></a> if
|
|
you see this failure mode so we can help debug it, however.</p>
|
|
|
|
</main>
|
|
|
|
<nav class="nav-wrapper" aria-label="Page navigation">
|
|
<!-- Mobile navigation buttons -->
|
|
<a rel="prev" href="../../usage/administration/request_log.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="../../development/contributing_guide.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="../../usage/administration/request_log.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="../../development/contributing_guide.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>
|