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From "Imran Rashid (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SPARK-19596) After a Stage is completed, all Tasksets for the stage should be marked as zombie
Date Tue, 14 Feb 2017 15:38:41 GMT
Imran Rashid created SPARK-19596:
------------------------------------

             Summary: After a Stage is completed, all Tasksets for the stage should be marked
as zombie
                 Key: SPARK-19596
                 URL: https://issues.apache.org/jira/browse/SPARK-19596
             Project: Spark
          Issue Type: Improvement
          Components: Scheduler
    Affects Versions: 2.2.0
            Reporter: Imran Rashid


Fetch Failures can lead to multiple simultaneous tasksets for one stage.  The stage may eventually
be finished by task completions from a prior stage attempt.  When this happens, the most recent
taskset is not marked as a zombie.  This means that taskset may continue to submit new tasks
even after the stage is complete.

This is not a correctness issue, but it will effect performance, as cluster resources will
get tied up running tasks that are not needed.

This is a follow up to https://issues.apache.org/jira/browse/SPARK-19565.  See some discussion
in the pr for that issue: https://github.com/apache/spark/pull/16901



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