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Formatting / wording fixes to metrics doc

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Paul "LeoNerd" Evans 2015-04-23 16:14:08 +01:00
parent 6c99491347
commit 8c78414284
1 changed files with 13 additions and 12 deletions
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docs/metrics-howto.rst
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@ -1,10 +1,10 @@
How to monitor Synapse metrics using Prometheus How to monitor Synapse metrics using Prometheus
=============================================== ===============================================
1: install prometheus: 1: Install prometheus:
Follow instructions at http://prometheus.io/docs/introduction/install/ Follow instructions at http://prometheus.io/docs/introduction/install/
2: enable synapse metrics: 2: Enable synapse metrics:
Simply setting a (local) port number will enable it. Pick a port. Simply setting a (local) port number will enable it. Pick a port.
prometheus itself defaults to 9090, so starting just above that for prometheus itself defaults to 9090, so starting just above that for
locally monitored services seems reasonable. E.g. 9092: locally monitored services seems reasonable. E.g. 9092:
@ -15,17 +15,18 @@ How to monitor Synapse metrics using Prometheus
Restart synapse Restart synapse
3: check out synapse-prometheus-config 3: Check out synapse-prometheus-config
https://github.com/matrix-org/synapse-prometheus-config https://github.com/matrix-org/synapse-prometheus-config
4: arrange for synapse.html to appear in prometheus's "consoles" 4: Add `synapse.html` and `synapse.rules`
directory - symlink might be easiest to ensure `git pull` keeps it The `.html` file needs to appear in prometheus's "consoles" directory, and
updated. the `.rules` file needs to be invoked somewhere in the main config file.
A symlink to each from the git checkout into the prometheus directory might be
easiest to ensure `git pull` keeps it updated.
5: arrange for synapse.rules to be invoked from the main 5: Add a prometheus target for synapse
prometheus.conf and add a synapse target. This is easiest if This is easiest if prometheus runs on the same machine as synapse, as it can
prometheus runs on the same machine as synapse, as it can then just then just use localhost::
use localhost::
global: { global: {
rule_file: "synapse.rules" rule_file: "synapse.rules"
@ -39,11 +40,11 @@ How to monitor Synapse metrics using Prometheus
} }
} }
6: start prometheus:: 6: Start prometheus::
./prometheus -config.file=prometheus.conf ./prometheus -config.file=prometheus.conf
7: wait a few seconds for it to start and perform the first scrape, 7: Wait a few seconds for it to start and perform the first scrape,
then visit the console: then visit the console:
http://server-where-prometheus-runs:9090/consoles/synapse.html http://server-where-prometheus-runs:9090/consoles/synapse.html