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https://issues.apache.org/jira/browse/HDFS-2911?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13445688#comment-13445688
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Suresh Srinivas commented on HDFS-2911:
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I actually thought about it. But given title "gracefully handle" and killing is
not graceful, decided to close the bug :)
Feel free to change the title and reopen. Or perhaps a new Jira.
> Gracefully handle OutOfMemoryErrors
> -----------------------------------
>
> Key: HDFS-2911
> URL: https://issues.apache.org/jira/browse/HDFS-2911
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: data-node, name-node
> Affects Versions: 0.23.0, 1.0.0
> Reporter: Eli Collins
>
> We should gracefully handle j.l.OutOfMemoryError exceptions in the NN or DN.
> We should catch them in a high-level handler, cleanly fail the RPC (vs
> sending back the OOM stackrace) or background thread, and shutdown the NN or
> DN. Currently the process is left in a not well-test tested state
> (continuously fails RPCs and internal threads, may or may not recover and
> doesn't shutdown gracefully).
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