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https://issues.apache.org/jira/browse/MAPREDUCE-6724?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gera Shegalov updated MAPREDUCE-6724:
-------------------------------------
Resolution: Fixed
Hadoop Flags: Reviewed
Fix Version/s: 2.9.0
Target Version/s: 2.9.0
Status: Resolved (was: Patch Available)
Committed to trunk and branch-2. Thanks [~haibochen] for contribution and to
[~templedf] for additional reviews.
> Single shuffle to memory must not exceed Integer#MAX_VALUE
> ----------------------------------------------------------
>
> Key: MAPREDUCE-6724
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6724
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Reporter: Haibo Chen
> Assignee: Haibo Chen
> Fix For: 2.9.0
>
> Attachments: MAPREDUCE-6724.009.patch, mapreduce6724.001.patch,
> mapreduce6724.002.patch, mapreduce6724.003.patch, mapreduce6724.004.patch,
> mapreduce6724.005.patch, mapreduce6724.006.patch, mapreduce6724.007.patch,
> mapreduce6724.008.patch
>
>
> When shuffle is done in memory, MergeManagerImpl converts the requested size
> to an int to allocate an instance of InMemoryMapOutput. This results in an
> overflow if the requested size is bigger than Integer.MAX_VALUE and
> eventually causes the reducer to fail.
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