2015-04-23 11:07:49 -04:00
|
|
|
How to monitor Synapse metrics using Prometheus
|
|
|
|
|
===============================================
|
|
|
|
|
|
2015-04-23 11:14:08 -04:00
|
|
|
1: Install prometheus:
|
2015-04-23 11:07:49 -04:00
|
|
|
Follow instructions at http://prometheus.io/docs/introduction/install/
|
|
|
|
|
|
2015-04-23 11:14:08 -04:00
|
|
|
2: Enable synapse metrics:
|
2015-04-23 11:07:49 -04:00
|
|
|
Simply setting a (local) port number will enable it. Pick a port.
|
|
|
|
|
prometheus itself defaults to 9090, so starting just above that for
|
|
|
|
|
locally monitored services seems reasonable. E.g. 9092:
|
|
|
|
|
|
|
|
|
|
Add to homeserver.yaml
|
|
|
|
|
|
|
|
|
|
metrics_port: 9092
|
|
|
|
|
|
|
|
|
|
Restart synapse
|
|
|
|
|
|
2016-10-28 08:58:27 -04:00
|
|
|
3: Add a prometheus target for synapse. It needs to set the ``metrics_path``
|
|
|
|
|
to a non-default value::
|
|
|
|
|
|
|
|
|
|
- job_name: "synapse"
|
|
|
|
|
metrics_path: "/_synapse/metrics"
|
|
|
|
|
static_configs:
|
|
|
|
|
- targets:
|
|
|
|
|
"my.server.here:9092"
|
2016-10-31 11:06:52 -04:00
|
|
|
|
|
|
|
|
Standard Metric Names
|
|
|
|
|
---------------------
|
|
|
|
|
|
|
|
|
|
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 miliseconds.
|
|
|
|
|
|
|
|
|
|
================================== =============================
|
|
|
|
|
New name Old name
|
|
|
|
|
---------------------------------- -----------------------------
|
|
|
|
|
process_cpu_user_seconds_total process_resource_utime / 1000
|
|
|
|
|
process_cpu_system_seconds_total process_resource_stime / 1000
|
|
|
|
|
process_open_fds (no 'type' label) process_fds
|
|
|
|
|
================================== =============================
|
|
|
|
|
|
|
|
|
|
The python-specific counts of garbage collector performance have been renamed.
|
|
|
|
|
|
|
|
|
|
=========================== ======================
|
|
|
|
|
New name Old name
|
|
|
|
|
--------------------------- ----------------------
|
|
|
|
|
python_gc_time reactor_gc_time
|
|
|
|
|
python_gc_unreachable_total reactor_gc_unreachable
|
|
|
|
|
python_gc_counts reactor_gc_counts
|
|
|
|
|
=========================== ======================
|
|
|
|
|
|
|
|
|
|
The twisted-specific reactor metrics have been renamed.
|
|
|
|
|
|
2016-11-03 13:04:13 -04:00
|
|
|
==================================== =====================
|
2016-10-31 11:06:52 -04:00
|
|
|
New name Old name
|
2016-11-03 13:04:13 -04:00
|
|
|
------------------------------------ ---------------------
|
|
|
|
|
python_twisted_reactor_pending_calls reactor_pending_calls
|
2016-10-31 11:06:52 -04:00
|
|
|
python_twisted_reactor_tick_time reactor_tick_time
|
2016-11-03 13:04:13 -04:00
|
|
|
==================================== =====================
|
