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From "Maxim Khutornenko (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AURORA-1500) Platform SLA gets stuck in DOWN when a replacement PENDING is killed
Date Mon, 28 Sep 2015 19:11:05 GMT
Maxim Khutornenko created AURORA-1500:
-----------------------------------------

             Summary: Platform SLA gets stuck in DOWN when a replacement PENDING is killed
                 Key: AURORA-1500
                 URL: https://issues.apache.org/jira/browse/AURORA-1500
             Project: Aurora
          Issue Type: Bug
          Components: Scheduler
            Reporter: Maxim Khutornenko


The way platform SLA calculation is currently done cannot account for some special cases when
killed tasks don't leave any history behind. One example: a task gets LOST (SLA DOWN interval
starts) and its replacement is scheduled immediately. If, however, the replacement task gets
killed while still in PENDING, no history is left to close the DOWN interval and the platform
SLA is degraded until either a new matching instance task is created by user or the task history
is purged.



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