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Gera Shegalov commented on MAPREDUCE-5754: ------------------------------------------ Thanks [~jlowe] for a review. I tested the change on an old history file as this is a major concern for upgrades. I'll follow up on your other points as well. > Preserve Job diagnostics in history > ----------------------------------- > > Key: MAPREDUCE-5754 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-5754 > Project: Hadoop Map/Reduce > Issue Type: Improvement > Components: jobhistoryserver, mr-am > Affects Versions: 2.2.0 > Reporter: Gera Shegalov > Assignee: Gera Shegalov > Attachments: MAPREDUCE-5754.v01.patch, MAPREDUCE-5754.v02.patch > > > History does not store the runtime diagnostics information. JobHistoryParser > tries to blame a task. We propose to preserve the original runtime > diagnostics that covers all the cases including the job being killed. This is > particularly important in the context of user-supplied diagnostic message as > in MAPREDUCE-5648. -- This message was sent by Atlassian JIRA (v6.1.5#6160)