A failing retry'able notification in JobEndNotifier can affect notifications of
other jobs.
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Key: MAPREDUCE-1688
URL: https://issues.apache.org/jira/browse/MAPREDUCE-1688
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: jobtracker
Affects Versions: 0.20.1
Reporter: Vinod K V
The JobTracker puts all the notification commands into a delay-queue. It has a
single thread that loops through this queue and sends out the notifications.
When it hits failures with any notification which is configured to be retired
via {{job.end.retry.attempts}} and {{job.end.retry.interval}}, the notification
is queued back again. A single notification with sufficiently large number of
configured retries and which consistently fails will affect other notifications
in the queue.
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