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perfwatcher / collectd-pw

Collectd patched for PerfWatcher
GNU General Public License v2.0
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Example config for basic agregator #3

Closed sseshachala closed 11 years ago

sseshachala commented 11 years ago

LoadPlugin basic_aggregator

Aggregators_config_file "//etc/aggregator.conf"

Is there any example config available?

ymettier commented 11 years ago

Hello,

Yes (no need to start with so many slashes) : 

[extract from collectd.conf]
LoadPlugin basic_aggregator
<Plugin basic_aggregator>
    Aggregators_config_file "/etc/collectd/aggregator.conf"
</Plugin>

In the file /etc/collectd/aggregator.conf, write something like this : 

<aggregator>
  resultvalue "my_aggregator_1/load/load"
  operation "AVG"
  operation "SUM"
  <valuelist manual>
    type "host1/load/load"
    type "host2/load/load"
    type "host3/load/load"
  </valuelist>
</aggregator>

This will aggregate (sum and average) the load/load for the 3 hosts host1, host2, host3. The result will be a new metric "my_aggregator_1/load/load"

<aggregator>
  resultvalue "my_aggregator_2/cpu-total/cpu
  operation "AVG"
  operation "SUM"
  <valuelist manual>
    type "host1/cpu-total/cpu"
    type "host2/cpu-total/cpu"
  </valuelist>
</aggregator>

This will aggregate all typeinstances of cpu-total/cpu for host1 and host2.

If you follow the installation procedure of perfwatcher, there is a tool that you will install in crontab and that will create automatically aggregators for you.

Regards, Yves