Shalin Shekhar Mangar created SOLR-11747:
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             Summary: Pause triggers until actions finish executing and the 
cool down period expires
                 Key: SOLR-11747
                 URL: https://issues.apache.org/jira/browse/SOLR-11747
             Project: Solr
          Issue Type: Improvement
      Security Level: Public (Default Security Level. Issues are Public)
          Components: AutoScaling, SolrCloud
            Reporter: Shalin Shekhar Mangar
            Assignee: Shalin Shekhar Mangar
             Fix For: master (8.0), 7.3


Currently, the cool down period is a fixed period during which events generated 
from triggers aren't accepted. The cool down starts after actions performed by 
a previous event finish. But it doesn't protect against triggers acting on 
intermediate cluster state during the time the actions are executing. Events 
can still be created and persisted to ZK and will be executed serially once the 
cool down finishes.

To protect against, this I intend to modify the behaviour of the system to 
pause all triggers from execution between the start of actions and end of cool 
down period. The triggers will be resumed after the cool down period expires.



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