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Posted to mapreduce-issues@hadoop.apache.org by "Eli Collins (JIRA)" <ji...@apache.org> on 2012/07/10 22:24:34 UTC

[jira] [Created] (MAPREDUCE-4426) Hook daemon process exit for testing

Eli Collins created MAPREDUCE-4426:
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             Summary: Hook daemon process exit for testing
                 Key: MAPREDUCE-4426
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4426
             Project: Hadoop Map/Reduce
          Issue Type: Improvement
          Components: test
    Affects Versions: 2.0.0-alpha
            Reporter: Eli Collins


HDFS-3582 introduced a mechanism for testing daemon exit, this allows us to (1) verify that the daemons don't exit unexpectedly and (2) test the particular cause of exit when we do expect it. I've never seen the same MR jenkins failures that prompted HDFS-3582 but it would be worth updating the various raw calls to System#exit or Runtime#exit in MR to use ExitUtil#terminate for consistency (and eg aid hooking exit for other reasons like HADOOP-8096).

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