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https://issues.apache.org/jira/browse/HADOOP-6460?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Suresh Srinivas updated HADOOP-6460:
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Resolution: Fixed
Release Note: The ipc server response buffers that have grown to a large
size (more than 1MB) is replaced by a smaller buffer to free up java heap used.
This addresses the issue of large growth in namenode java heap usage.
Status: Resolved (was: Patch Available)
> Namenode runs of out of memory due to memory leak in ipc Server
> ---------------------------------------------------------------
>
> Key: HADOOP-6460
> URL: https://issues.apache.org/jira/browse/HADOOP-6460
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 0.20.1, 0.21.0, 0.22.0
> Reporter: Suresh Srinivas
> Assignee: Suresh Srinivas
> Priority: Blocker
> Fix For: 0.20.2, 0.21.0, 0.22.0
>
> Attachments: hadoop-6460.1.patch, hadoop-6460.5.patch,
> hadoop-6460.6.patch, hadoop-6460.7.patch, hadoop-6460.patch,
> hadoop-6460.rel20.patch
>
>
> Namenode heap usage grows disproportional to the number objects supports
> (files, directories and blocks). Based on heap dump analysis, this is due to
> large growth in ByteArrayOutputStream allocated in
> o.a.h.ipc.Server.Handler.run().
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