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https://issues.apache.org/jira/browse/MAPREDUCE-7290?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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chaoli updated MAPREDUCE-7290:
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Description:
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.
was:
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
> 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
> Priority: Major
>
> 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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