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51 lines
1.4 KiB
ReStructuredText
51 lines
1.4 KiB
ReStructuredText
How to monitor Synapse metrics using Prometheus
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===============================================
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1: Install prometheus:
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Follow instructions at http://prometheus.io/docs/introduction/install/
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2: Enable synapse metrics:
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Simply setting a (local) port number will enable it. Pick a port.
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prometheus itself defaults to 9090, so starting just above that for
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locally monitored services seems reasonable. E.g. 9092:
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Add to homeserver.yaml
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metrics_port: 9092
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Restart synapse
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3: Check out synapse-prometheus-config
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https://github.com/matrix-org/synapse-prometheus-config
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4: Add ``synapse.html`` and ``synapse.rules``
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The ``.html`` file needs to appear in prometheus's ``consoles`` directory,
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and the ``.rules`` file needs to be invoked somewhere in the main config
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file. A symlink to each from the git checkout into the prometheus directory
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might be easiest to ensure ``git pull`` keeps it updated.
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5: Add a prometheus target for synapse
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This is easiest if prometheus runs on the same machine as synapse, as it can
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then just use localhost::
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global: {
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rule_file: "synapse.rules"
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}
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job: {
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name: "synapse"
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target_group: {
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target: "http://localhost:9092/"
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}
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}
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6: Start prometheus::
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./prometheus -config.file=prometheus.conf
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7: Wait a few seconds for it to start and perform the first scrape,
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then visit the console:
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http://server-where-prometheus-runs:9090/consoles/synapse.html
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