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grobian / carbon-c-relay

Enhanced C implementation of Carbon relay, aggregator and rewriter
Apache License 2.0
380 stars 107 forks source link

Recommendations for aggregating all metrics #433

Open rodmur opened 3 years ago

rodmur commented 3 years ago

Hi,

Just I was just wanting to aggregate all values coming from collectd and then pass it along to a graphite setup. Just wondering if the following is a good idea or not:

aggregate 
  (\.*)
  every 300 seconds
  expire after 360 seconds
  compute avg write to
    \1
  send to portaldb
  stop
  ;

Or is the above a bad idea?

grobian commented 3 years ago

Not per-se, depends a bit on how many unique metrics names you're going to spool through this instance :)

It will need memory obviously, and it's going to take some cpu to do the lookups all the time. I would just try and see if it falls over or not.