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https://issues.apache.org/jira/browse/HDFS-7885?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14350712#comment-14350712
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Jing Zhao commented on HDFS-7885:
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The latest patch looks good to me. The failed tests should be unrelated. +1.
I will commit it shortly.
> Datanode should not trust the generation stamp provided by client
> -----------------------------------------------------------------
>
> Key: HDFS-7885
> URL: https://issues.apache.org/jira/browse/HDFS-7885
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode
> Affects Versions: 2.2.0
> Reporter: vitthal (Suhas) Gogate
> Assignee: Tsz Wo Nicholas Sze
> Priority: Critical
> Attachments: h7885_20150305.patch, h7885_20150306.patch
>
>
> Datanode should not trust the generation stamp provided by client, since it
> is prefetched and buffered in client, and concurrent append may increase it.
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