[jira] [Created] (SOLR-11833) Allow searchRate trigger to delete replicas

["Andrzej Bialecki (JIRA)" <ji...@apache.org>]

Andrzej Bialecki  created SOLR-11833:
----------------------------------------

             Summary: Allow searchRate trigger to delete replicas
                 Key: SOLR-11833
                 URL: https://issues.apache.org/jira/browse/SOLR-11833
             Project: Solr
          Issue Type: Sub-task
      Security Level: Public (Default Security Level. Issues are Public)
          Components: AutoScaling
            Reporter: Andrzej Bialecki 
            Assignee: Andrzej Bialecki 


Currently {{SearchRateTrigger}} generates events when search rate thresholds are exceeded, and {{ComputePlanAction}} computes ADDREPLICA actions in response - adding replicas should allow the search rate to be reduced across the increased number of replicas.

However, once the peak load period is over the collection is left with too many replicas, which unnecessarily tie cluster resources. {{SearchRateTrigger}} should detect situations like this and generate events that should cause some of these replicas to be deleted.

{{SearchRateTrigger}} should use hysteresis to avoid thrashing when the rate is close to the threshold.



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: dev-help@lucene.apache.org