On Tue, Sep 15, 2015 at 6:04 PM Steve Wray <[email protected]> wrote: > We are gathering both system performance metrics (eg cpu directly from > collectd) as well as application performance metrics (eg an application > sends some of its internal performance metrics to collectd via the statsd > input). > > We'd like these to go into graphite with different prefixes eg the system > performance metrics should go under eg server.sys. and application metrics > should go under eg app.statsd. > > I've been looking at chains and I'd thought that this should do something > like what we need: > > <LoadPlugin cpu> > Globals false > </LoadPlugin> > > <LoadPlugin statsd> > Globals false > </LoadPlugin> > <Plugin statsd> > Host "0.0.0.0" > Port 8125 > </Plugin> > > # This should be the default write, it should get the stats from the cpu > plugin: > > <Plugin write_graphite> > <Node "collectd_graphite"> > Host "our.graphite.server" > Port "2003" > # it goes under server.sys. > Prefix "server.sys." > Protocol "tcp" > </Node> > </Plugin> > > # This should catch writes from statsd and send them to collectd with the > app.statsd. prefix. > # It should not get the cpu stats as that doesn't come via statsd > > LoadPlugin "match_regex" > <Chain "PreCache"> > <Rule> > <Match "regex"> > Plugin "^statsd$" > </Match> > <Target "write"> > <Plugin "write_graphite"> > <Node "collectd_graphite"> > Host "our.graphite.server" > Port "2003" > Prefix "app.statsd." > EscapeCharacter "." > Protocol "tcp" > </Node> > </Plugin> > </Target> > Target "stop" > </Rule> > Target "write" > </Chain> > > Whats actually happening is that the statsd data is being sent to graphite > with the server.sys. prefix. > > Any advice on using Chains would be helpful. >
What if you use a consistent prefix when sending metrics to statsd, like "statsd." Then, use the replace target (e.g. https://collectd.org/wiki/index.php/Target:Replace) to swap server.sys.statsd.* to app.statsd.* Giovanni
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