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Posted to mapreduce-dev@hadoop.apache.org by "chaoli (Jira)" <ji...@apache.org> on 2020/08/07 03:40:00 UTC

[jira] [Created] (MAPREDUCE-7290) ShuffleHeader should be compatible between client&server when rolling update

chaoli created MAPREDUCE-7290:
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             Summary: ShuffleHeader should be compatible between client&server when rolling update
                 Key: MAPREDUCE-7290
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-7290
             Project: Hadoop Map/Reduce
          Issue Type: Improvement
          Components: mrv2
            Reporter: chaoli


Recently, we need to add a property in ShuffleHeader class. And we encountered a problem that client&server may not compatible because of serialization/deserialization when we rolling update NodeManager instance. 

Therefore, we made a improvement to support shuffle header version upgrade smoothly

 



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