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Posted to issues@aurora.apache.org by "Maxim Khutornenko (JIRA)" <ji...@apache.org> on 2015/02/04 01:48:35 UTC

[jira] [Created] (AURORA-1097) Scheduler updater should suppress instance events on resume

Maxim Khutornenko created AURORA-1097:
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             Summary: Scheduler updater should suppress instance events on resume
                 Key: AURORA-1097
                 URL: https://issues.apache.org/jira/browse/AURORA-1097
             Project: Aurora
          Issue Type: Task
          Components: Scheduler
            Reporter: Maxim Khutornenko


Scheduler updater does not attempt to suppress redundant instance events in case an update is paused/blocked and is subsequently resumed/pulsed. This leads to a useless sequence of no-op instance events, which may quickly consume the allocated event cap (tracked in AURORA-1096). 

For example, an update paused/resumed 2 times after instance 1 is updated will generate the following instance sequence:

1=[INSTANCE_UPDATING, INSTANCE_UPDATED, INSTANCE_UPDATING, INSTANCE_UPDATED, INSTANCE_UPDATING, INSTANCE_UPDATED]



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