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Performance Retention

sethcleveland edited this page May 13, 2014 · 5 revisions

Overview

As of europa, all performance data (aka metrics) are stored in Hbase using Opentsdb. The default retention policy saves the data forever. To change the default policy, the time to live (TTL) most be adjusted on the opentsdb column families in Hbase. The following steps explain how to change that TTL value using serviced and europa.

Steps

Stop performance data from writing

  1. Go to the serviced UI and stop the opentsdb writer service

  2. Set the TTL value

    SSH into the host running the opentsdb reader service

References

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