commit | a060a7560a698b4a536011d5bf16546ece6e0979 | [log] [tgz] |
---|---|---|
author | Alexander Shorin <kxepal@apache.org> | Sun Mar 01 22:53:11 2015 +0300 |
committer | Alexander Shorin <kxepal@apache.org> | Sun Mar 01 22:53:11 2015 +0300 |
tree | b1ec9519e58414d2e890c725929c692642d30d68 | |
parent | 5dd3b5f0f8cc754084ce38a9935aa2fd2943e74e [diff] |
Fix compilation warning
couch_stats is a simple statistics collection app for Erlang applications. Its core API is a thin wrapper around a stat storage library (currently Folsom,) but abstracting over that library provides several benefits:
All references to stat storage are in one place, so it's easy to swap the module out.
Some common patterns, such as tying a process's lifetime to a counter value, are straightforward to support.
Configuration can be managed in a single place - for example, it's much easier to ensure that all histogram metrics use a 10-second sliding window if those metrics are instantiated/configured centrally.
[atom()]
.counter
, gauge
, or histogram
.If you don‘t add your metric to a description file, your metric will be accessible via couch_stats:sample/1
, but it won’t be read by the stats collector and therefore won't be available to HTTP _stats
requests, etc.
Tell couch_stats to use your description file via application configuration.
Instrument your code with the helper functions in couch_stats.erl
.