RISCI_ATOM
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synapse
镜像自地址 https://github.com/matrix-org/synapse.git


			
				
					
						
						
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                <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 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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" class="active">Monitoring</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="usage/administration/monitoring/reporting_homeserver_usage_statistics.html">Reporting Homeserver Usage Statistics</a></li></ol></li><li class="chapter-item expanded "><a href="usage/administration/monthly_active_users.html">Monthly Active Users</a></li><li class="chapter-item expanded "><a href="usage/administration/understanding_synapse_through_grafana_graphs.html">Understanding Synapse Through Grafana Graphs</a></li><li class="chapter-item expanded "><a href="usage/administration/useful_sql_for_admins.html">Useful SQL for Admins</a></li><li class="chapter-item expanded "><a href="usage/administration/database_maintenance_tools.html">Database Maintenance Tools</a></li><li class="chapter-item expanded "><a href="usage/administration/state_groups.html">State Groups</a></li><li class="chapter-item expanded "><a href="usage/administration/request_log.html">Request log format</a></li><li class="chapter-item expanded "><a href="usage/administration/admin_faq.html">Admin FAQ</a></li><li class="chapter-item expanded "><div>Scripts</div></li></ol></li><li class="chapter-item expanded "><li class="part-title">Development</li><li class="chapter-item expanded "><a href="development/contributing_guide.html">Contributing Guide</a></li><li class="chapter-item expanded "><a href="code_style.html">Code Style</a></li><li class="chapter-item expanded "><a href="development/reviews.html">Reviewing Code</a></li><li class="chapter-item expanded "><a href="development/releases.html">Release Cycle</a></li><li class="chapter-item expanded "><a href="development/git.html">Git Usage</a></li><li class="chapter-item expanded "><div>Testing</div></li><li><ol class="section"><li class="chapter-item expanded "><a href="development/demo.html">Demo scripts</a></li></ol></li><li class="chapter-item expanded "><a href="opentracing.html">OpenTracing</a></li><li class="chapter-item expanded "><a href="development/database_schema.html">Database Schemas</a></li><li class="chapter-item expanded "><a href="development/experimental_features.html">Experimental features</a></li><li class="chapter-item expanded "><a href="development/dependencies.html">Dependency management</a></li><li class="chapter-item expanded "><div>Synapse Architecture</div></li><li><ol class="section"><li class="chapter-item expanded "><a href="development/synapse_architecture/cancellation.html">Cancellation</a></li><li class="chapter-item expanded "><a href="log_contexts.html">Log Contexts</a></li><li class="chapter-item expanded "><a href="replication.html">Replication</a></li><li class="chapter-item expanded "><a href="development/synapse_architecture/streams.html">Streams</a></li><li class="chapter-item expanded "><a href="tcp_replication.html">TCP Replication</a></li><li class="chapter-item expanded "><a href="development/synapse_architecture/faster_joins.html">Faster remote joins</a></li></ol></li><li class="chapter-item expanded "><a href="development/internal_documentation/index.html">Internal Documentation</a></li><li><ol class="section"><li class="chapter-item expanded "><div>Single Sign-On</div></li><li><ol class="section"><li class="chapter-item expanded "><a href="development/saml.html">SAML</a></li><li class="chapter-item expanded "><a href="development/cas.html">CAS</a></li></ol></li><li class="chapter-item expanded "><a href="development/room-dag-concepts.html">Room DAG concepts</a></li><li class="chapter-item expanded "><div>State Resolution</div></li><li><ol class="section"><li class="chapter-item expanded "><a href="auth_chain_difference_algorithm.html">The Auth Chain Difference Algorithm</a></li></ol></li><li class="chapter-item expanded "><a href="media_repository.html">Media Repository</a></li><li class="chapter-item expanded "><a href="room_and_user_statistics.html">Room and User Statistics</a></li></ol></li><li class="chapter-item expanded "><div>Scripts</div></li><li class="chapter-item expanded affix "><li class="part-title">Other</li><li class="chapter-item expanded "><a href="deprecation_policy.html">Dependency Deprecation Policy</a></li><li class="chapter-item expanded "><a href="other/running_synapse_on_single_board_computers.html">Running Synapse on a Single-Board Computer</a></li></ol>
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                    <h1 class="menu-title">Synapse</h1>

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                        <h1 id="how-to-monitor-synapse-metrics-using-prometheus"><a class="header" href="#how-to-monitor-synapse-metrics-using-prometheus">How to monitor Synapse metrics using Prometheus</a></h1>
<ol>
<li>
<p>Install Prometheus:</p>
<p>Follow instructions at
<a href="http://prometheus.io/docs/introduction/install/">http://prometheus.io/docs/introduction/install/</a></p>
</li>
<li>
<p>Enable Synapse metrics:</p>
<p>In <code>homeserver.yaml</code>, make sure <code>enable_metrics</code> is
set to <code>True</code>.</p>
</li>
<li>
<p>Enable the <code>/_synapse/metrics</code> Synapse endpoint that Prometheus uses to
collect data:</p>
<p>There are two methods of enabling the metrics endpoint in Synapse.</p>
<p>The first serves the metrics as a part of the usual web server and
can be enabled by adding the <code>metrics</code> resource to the existing
listener as such as in this example:</p>
<pre><code class="language-yaml">listeners:
  - port: 8008
    tls: false
    type: http
    x_forwarded: true
    bind_addresses: ['::1', '127.0.0.1']

    resources:
      # added &quot;metrics&quot; in this line
      - names: [client, federation, metrics]
        compress: false
</code></pre>
<p>This provides a simple way of adding metrics to your Synapse
installation, and serves under <code>/_synapse/metrics</code>. If you do not
wish your metrics be publicly exposed, you will need to either
filter it out at your load balancer, or use the second method.</p>
<p>The second method runs the metrics server on a different port, in a
different thread to Synapse. This can make it more resilient to
heavy load meaning metrics cannot be retrieved, and can be exposed
to just internal networks easier. The served metrics are available
over HTTP only, and will be available at <code>/_synapse/metrics</code>.</p>
<p>Add a new listener to homeserver.yaml as in this example:</p>
<pre><code class="language-yaml">listeners:
  - port: 8008
    tls: false
    type: http
    x_forwarded: true
    bind_addresses: ['::1', '127.0.0.1']

    resources:
      - names: [client, federation]
        compress: false

  # beginning of the new metrics listener
  - port: 9000
    type: metrics
    bind_addresses: ['::1', '127.0.0.1']
</code></pre>
</li>
<li>
<p>Restart Synapse.</p>
</li>
<li>
<p>Add a Prometheus target for Synapse.</p>
<p>It needs to set the <code>metrics_path</code> to a non-default value (under
<code>scrape_configs</code>):</p>
<pre><code class="language-yaml">  - job_name: &quot;synapse&quot;
    scrape_interval: 15s
    metrics_path: &quot;/_synapse/metrics&quot;
    static_configs:
      - targets: [&quot;my.server.here:port&quot;]
</code></pre>
<p>where <code>my.server.here</code> is the IP address of Synapse, and <code>port</code> is
the listener port configured with the <code>metrics</code> resource.</p>
<p>If your prometheus is older than 1.5.2, you will need to replace
<code>static_configs</code> in the above with <code>target_groups</code>.</p>
</li>
<li>
<p>Restart Prometheus.</p>
</li>
<li>
<p>Consider using the <a href="https://github.com/matrix-org/synapse/tree/master/contrib/grafana/">grafana dashboard</a>
and required <a href="https://github.com/matrix-org/synapse/tree/master/contrib/prometheus/">recording rules</a> </p>
</li>
</ol>
<h2 id="monitoring-workers"><a class="header" href="#monitoring-workers">Monitoring workers</a></h2>
<p>To monitor a Synapse installation using <a href="workers.html">workers</a>,
every worker needs to be monitored independently, in addition to
the main homeserver process. This is because workers don't send
their metrics to the main homeserver process, but expose them
directly (if they are configured to do so).</p>
<p>To allow collecting metrics from a worker, you need to add a
<code>metrics</code> listener to its configuration, by adding the following
under <code>worker_listeners</code>:</p>
<pre><code class="language-yaml">  - type: metrics
    bind_address: ''
    port: 9101
</code></pre>
<p>The <code>bind_address</code> and <code>port</code> parameters should be set so that
the resulting listener can be reached by prometheus, and they
don't clash with an existing worker.
With this example, the worker's metrics would then be available
on <code>http://127.0.0.1:9101</code>.</p>
<p>Example Prometheus target for Synapse with workers:</p>
<pre><code class="language-yaml">  - job_name: &quot;synapse&quot;
    scrape_interval: 15s
    metrics_path: &quot;/_synapse/metrics&quot;
    static_configs:
      - targets: [&quot;my.server.here:port&quot;]
        labels:
          instance: &quot;my.server&quot;
          job: &quot;master&quot;
          index: 1
      - targets: [&quot;my.workerserver.here:port&quot;]
        labels:
          instance: &quot;my.server&quot;
          job: &quot;generic_worker&quot;
          index: 1
      - targets: [&quot;my.workerserver.here:port&quot;]
        labels:
          instance: &quot;my.server&quot;
          job: &quot;generic_worker&quot;
          index: 2
      - targets: [&quot;my.workerserver.here:port&quot;]
        labels:
          instance: &quot;my.server&quot;
          job: &quot;media_repository&quot;
          index: 1
</code></pre>
<p>Labels (<code>instance</code>, <code>job</code>, <code>index</code>) can be defined as anything.
The labels are used to group graphs in grafana.</p>
<h2 id="renaming-of-metrics--deprecation-of-old-names-in-12"><a class="header" href="#renaming-of-metrics--deprecation-of-old-names-in-12">Renaming of metrics &amp; deprecation of old names in 1.2</a></h2>
<p>Synapse 1.2 updates the Prometheus metrics to match the naming
convention of the upstream <code>prometheus_client</code>. The old names are
considered deprecated and will be removed in a future version of
Synapse.
<strong>The old names will be disabled by default in Synapse v1.71.0 and removed
altogether in Synapse v1.73.0.</strong></p>
<table><thead><tr><th>New Name</th><th>Old Name</th></tr></thead><tbody>
<tr><td>python_gc_objects_collected_total</td><td>python_gc_objects_collected</td></tr>
<tr><td>python_gc_objects_uncollectable_total</td><td>python_gc_objects_uncollectable</td></tr>
<tr><td>python_gc_collections_total</td><td>python_gc_collections</td></tr>
<tr><td>process_cpu_seconds_total</td><td>process_cpu_seconds</td></tr>
<tr><td>synapse_federation_client_sent_transactions_total</td><td>synapse_federation_client_sent_transactions</td></tr>
<tr><td>synapse_federation_client_events_processed_total</td><td>synapse_federation_client_events_processed</td></tr>
<tr><td>synapse_event_processing_loop_count_total</td><td>synapse_event_processing_loop_count</td></tr>
<tr><td>synapse_event_processing_loop_room_count_total</td><td>synapse_event_processing_loop_room_count</td></tr>
<tr><td>synapse_util_caches_cache_hits</td><td>synapse_util_caches_cache:hits</td></tr>
<tr><td>synapse_util_caches_cache_size</td><td>synapse_util_caches_cache:size</td></tr>
<tr><td>synapse_util_caches_cache_evicted_size</td><td>synapse_util_caches_cache:evicted_size</td></tr>
<tr><td>synapse_util_caches_cache</td><td>synapse_util_caches_cache:total</td></tr>
<tr><td>synapse_util_caches_response_cache_size</td><td>synapse_util_caches_response_cache:size</td></tr>
<tr><td>synapse_util_caches_response_cache_hits</td><td>synapse_util_caches_response_cache:hits</td></tr>
<tr><td>synapse_util_caches_response_cache_evicted_size</td><td>synapse_util_caches_response_cache:evicted_size</td></tr>
<tr><td>synapse_util_metrics_block_count_total</td><td>synapse_util_metrics_block_count</td></tr>
<tr><td>synapse_util_metrics_block_time_seconds_total</td><td>synapse_util_metrics_block_time_seconds</td></tr>
<tr><td>synapse_util_metrics_block_ru_utime_seconds_total</td><td>synapse_util_metrics_block_ru_utime_seconds</td></tr>
<tr><td>synapse_util_metrics_block_ru_stime_seconds_total</td><td>synapse_util_metrics_block_ru_stime_seconds</td></tr>
<tr><td>synapse_util_metrics_block_db_txn_count_total</td><td>synapse_util_metrics_block_db_txn_count</td></tr>
<tr><td>synapse_util_metrics_block_db_txn_duration_seconds_total</td><td>synapse_util_metrics_block_db_txn_duration_seconds</td></tr>
<tr><td>synapse_util_metrics_block_db_sched_duration_seconds_total</td><td>synapse_util_metrics_block_db_sched_duration_seconds</td></tr>
<tr><td>synapse_background_process_start_count_total</td><td>synapse_background_process_start_count</td></tr>
<tr><td>synapse_background_process_ru_utime_seconds_total</td><td>synapse_background_process_ru_utime_seconds</td></tr>
<tr><td>synapse_background_process_ru_stime_seconds_total</td><td>synapse_background_process_ru_stime_seconds</td></tr>
<tr><td>synapse_background_process_db_txn_count_total</td><td>synapse_background_process_db_txn_count</td></tr>
<tr><td>synapse_background_process_db_txn_duration_seconds_total</td><td>synapse_background_process_db_txn_duration_seconds</td></tr>
<tr><td>synapse_background_process_db_sched_duration_seconds_total</td><td>synapse_background_process_db_sched_duration_seconds</td></tr>
<tr><td>synapse_storage_events_persisted_events_total</td><td>synapse_storage_events_persisted_events</td></tr>
<tr><td>synapse_storage_events_persisted_events_sep_total</td><td>synapse_storage_events_persisted_events_sep</td></tr>
<tr><td>synapse_storage_events_state_delta_total</td><td>synapse_storage_events_state_delta</td></tr>
<tr><td>synapse_storage_events_state_delta_single_event_total</td><td>synapse_storage_events_state_delta_single_event</td></tr>
<tr><td>synapse_storage_events_state_delta_reuse_delta_total</td><td>synapse_storage_events_state_delta_reuse_delta</td></tr>
<tr><td>synapse_federation_server_received_pdus_total</td><td>synapse_federation_server_received_pdus</td></tr>
<tr><td>synapse_federation_server_received_edus_total</td><td>synapse_federation_server_received_edus</td></tr>
<tr><td>synapse_handler_presence_notified_presence_total</td><td>synapse_handler_presence_notified_presence</td></tr>
<tr><td>synapse_handler_presence_federation_presence_out_total</td><td>synapse_handler_presence_federation_presence_out</td></tr>
<tr><td>synapse_handler_presence_presence_updates_total</td><td>synapse_handler_presence_presence_updates</td></tr>
<tr><td>synapse_handler_presence_timers_fired_total</td><td>synapse_handler_presence_timers_fired</td></tr>
<tr><td>synapse_handler_presence_federation_presence_total</td><td>synapse_handler_presence_federation_presence</td></tr>
<tr><td>synapse_handler_presence_bump_active_time_total</td><td>synapse_handler_presence_bump_active_time</td></tr>
<tr><td>synapse_federation_client_sent_edus_total</td><td>synapse_federation_client_sent_edus</td></tr>
<tr><td>synapse_federation_client_sent_pdu_destinations_count_total</td><td>synapse_federation_client_sent_pdu_destinations:count</td></tr>
<tr><td>synapse_federation_client_sent_pdu_destinations_total</td><td>synapse_federation_client_sent_pdu_destinations:total</td></tr>
<tr><td>synapse_handlers_appservice_events_processed_total</td><td>synapse_handlers_appservice_events_processed</td></tr>
<tr><td>synapse_notifier_notified_events_total</td><td>synapse_notifier_notified_events</td></tr>
<tr><td>synapse_push_bulk_push_rule_evaluator_push_rules_invalidation_counter_total</td><td>synapse_push_bulk_push_rule_evaluator_push_rules_invalidation_counter</td></tr>
<tr><td>synapse_push_bulk_push_rule_evaluator_push_rules_state_size_counter_total</td><td>synapse_push_bulk_push_rule_evaluator_push_rules_state_size_counter</td></tr>
<tr><td>synapse_http_httppusher_http_pushes_processed_total</td><td>synapse_http_httppusher_http_pushes_processed</td></tr>
<tr><td>synapse_http_httppusher_http_pushes_failed_total</td><td>synapse_http_httppusher_http_pushes_failed</td></tr>
<tr><td>synapse_http_httppusher_badge_updates_processed_total</td><td>synapse_http_httppusher_badge_updates_processed</td></tr>
<tr><td>synapse_http_httppusher_badge_updates_failed_total</td><td>synapse_http_httppusher_badge_updates_failed</td></tr>
<tr><td>synapse_admin_mau_current</td><td>synapse_admin_mau:current</td></tr>
<tr><td>synapse_admin_mau_max</td><td>synapse_admin_mau:max</td></tr>
<tr><td>synapse_admin_mau_registered_reserved_users</td><td>synapse_admin_mau:registered_reserved_users</td></tr>
</tbody></table>
<h2 id="removal-of-deprecated-metrics--time-based-counters-becoming-histograms-in-0310"><a class="header" href="#removal-of-deprecated-metrics--time-based-counters-becoming-histograms-in-0310">Removal of deprecated metrics &amp; time based counters becoming histograms in 0.31.0</a></h2>
<p>The duplicated metrics deprecated in Synapse 0.27.0 have been removed.</p>
<p>All time duration-based metrics have been changed to be seconds. This
affects:</p>
<table><thead><tr><th>msec -&gt; sec metrics</th></tr></thead><tbody>
<tr><td>python_gc_time</td></tr>
<tr><td>python_twisted_reactor_tick_time</td></tr>
<tr><td>synapse_storage_query_time</td></tr>
<tr><td>synapse_storage_schedule_time</td></tr>
<tr><td>synapse_storage_transaction_time</td></tr>
</tbody></table>
<p>Several metrics have been changed to be histograms, which sort entries
into buckets and allow better analysis. The following metrics are now
histograms:</p>
<table><thead><tr><th>Altered metrics</th></tr></thead><tbody>
<tr><td>python_gc_time</td></tr>
<tr><td>python_twisted_reactor_pending_calls</td></tr>
<tr><td>python_twisted_reactor_tick_time</td></tr>
<tr><td>synapse_http_server_response_time_seconds</td></tr>
<tr><td>synapse_storage_query_time</td></tr>
<tr><td>synapse_storage_schedule_time</td></tr>
<tr><td>synapse_storage_transaction_time</td></tr>
</tbody></table>
<h2 id="block-and-response-metrics-renamed-for-0270"><a class="header" href="#block-and-response-metrics-renamed-for-0270">Block and response metrics renamed for 0.27.0</a></h2>
<p>Synapse 0.27.0 begins the process of rationalising the duplicate
<code>*:count</code> metrics reported for the resource tracking for code blocks and
HTTP requests.</p>
<p>At the same time, the corresponding <code>*:total</code> metrics are being renamed,
as the <code>:total</code> suffix no longer makes sense in the absence of a
corresponding <code>:count</code> metric.</p>
<p>To enable a graceful migration path, this release just adds new names
for the metrics being renamed. A future release will remove the old
ones.</p>
<p>The following table shows the new metrics, and the old metrics which
they are replacing.</p>
<table><thead><tr><th>New name</th><th>Old name</th></tr></thead><tbody>
<tr><td>synapse_util_metrics_block_count</td><td>synapse_util_metrics_block_timer:count</td></tr>
<tr><td>synapse_util_metrics_block_count</td><td>synapse_util_metrics_block_ru_utime:count</td></tr>
<tr><td>synapse_util_metrics_block_count</td><td>synapse_util_metrics_block_ru_stime:count</td></tr>
<tr><td>synapse_util_metrics_block_count</td><td>synapse_util_metrics_block_db_txn_count:count</td></tr>
<tr><td>synapse_util_metrics_block_count</td><td>synapse_util_metrics_block_db_txn_duration:count</td></tr>
<tr><td>synapse_util_metrics_block_time_seconds</td><td>synapse_util_metrics_block_timer:total</td></tr>
<tr><td>synapse_util_metrics_block_ru_utime_seconds</td><td>synapse_util_metrics_block_ru_utime:total</td></tr>
<tr><td>synapse_util_metrics_block_ru_stime_seconds</td><td>synapse_util_metrics_block_ru_stime:total</td></tr>
<tr><td>synapse_util_metrics_block_db_txn_count</td><td>synapse_util_metrics_block_db_txn_count:total</td></tr>
<tr><td>synapse_util_metrics_block_db_txn_duration_seconds</td><td>synapse_util_metrics_block_db_txn_duration:total</td></tr>
<tr><td>synapse_http_server_response_count</td><td>synapse_http_server_requests</td></tr>
<tr><td>synapse_http_server_response_count</td><td>synapse_http_server_response_time:count</td></tr>
<tr><td>synapse_http_server_response_count</td><td>synapse_http_server_response_ru_utime:count</td></tr>
<tr><td>synapse_http_server_response_count</td><td>synapse_http_server_response_ru_stime:count</td></tr>
<tr><td>synapse_http_server_response_count</td><td>synapse_http_server_response_db_txn_count:count</td></tr>
<tr><td>synapse_http_server_response_count</td><td>synapse_http_server_response_db_txn_duration:count</td></tr>
<tr><td>synapse_http_server_response_time_seconds</td><td>synapse_http_server_response_time:total</td></tr>
<tr><td>synapse_http_server_response_ru_utime_seconds</td><td>synapse_http_server_response_ru_utime:total</td></tr>
<tr><td>synapse_http_server_response_ru_stime_seconds</td><td>synapse_http_server_response_ru_stime:total</td></tr>
<tr><td>synapse_http_server_response_db_txn_count</td><td>synapse_http_server_response_db_txn_count:total</td></tr>
<tr><td>synapse_http_server_response_db_txn_duration_seconds</td><td>synapse_http_server_response_db_txn_duration:total</td></tr>
</tbody></table>
<h2 id="standard-metric-names"><a class="header" href="#standard-metric-names">Standard Metric Names</a></h2>
<p>As of synapse version 0.18.2, the format of the process-wide metrics has
been changed to fit prometheus standard naming conventions. Additionally
the units have been changed to seconds, from milliseconds.</p>
<table><thead><tr><th>New name</th><th>Old name</th></tr></thead><tbody>
<tr><td>process_cpu_user_seconds_total</td><td>process_resource_utime / 1000</td></tr>
<tr><td>process_cpu_system_seconds_total</td><td>process_resource_stime / 1000</td></tr>
<tr><td>process_open_fds (no 'type' label)</td><td>process_fds</td></tr>
</tbody></table>
<p>The python-specific counts of garbage collector performance have been
renamed.</p>
<table><thead><tr><th>New name</th><th>Old name</th></tr></thead><tbody>
<tr><td>python_gc_time</td><td>reactor_gc_time</td></tr>
<tr><td>python_gc_unreachable_total</td><td>reactor_gc_unreachable</td></tr>
<tr><td>python_gc_counts</td><td>reactor_gc_counts</td></tr>
</tbody></table>
<p>The twisted-specific reactor metrics have been renamed.</p>
<table><thead><tr><th>New name</th><th>Old name</th></tr></thead><tbody>
<tr><td>python_twisted_reactor_pending_calls</td><td>reactor_pending_calls</td></tr>
<tr><td>python_twisted_reactor_tick_time</td><td>reactor_tick_time</td></tr>
</tbody></table>

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