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https://issues.apache.org/jira/browse/HDFS-8965?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14724530#comment-14724530
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Brahma Reddy Battula commented on HDFS-8965:
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[~cmccabe]Thanks for addressing all the comments neatly...+1 ( non-binding) on
latest patch..
> Harden edit log reading code against out of memory errors
> ---------------------------------------------------------
>
> Key: HDFS-8965
> URL: https://issues.apache.org/jira/browse/HDFS-8965
> Project: Hadoop HDFS
> Issue Type: Improvement
> Affects Versions: 2.0.0-alpha
> Reporter: Colin Patrick McCabe
> Assignee: Colin Patrick McCabe
> Fix For: 2.8
>
> Attachments: HDFS-8965.001.patch, HDFS-8965.002.patch,
> HDFS-8965.003.patch, HDFS-8965.004.patch, HDFS-8965.005.patch,
> HDFS-8965.006.patch, HDFS-8965.007.patch
>
>
> We should harden the edit log reading code against out of memory errors. Now
> that each op has a length prefix and a checksum, we can validate the checksum
> before trying to load the Op data. This should avoid out of memory errors
> when trying to load garbage data as Op data.
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