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From "Vinod Kumar Vavilapalli (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-7885) Datanode should not trust the generation stamp provided by client
Date Tue, 01 Sep 2015 22:20:46 GMT

     [ https://issues.apache.org/jira/browse/HDFS-7885?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vinod Kumar Vavilapalli updated HDFS-7885:
------------------------------------------
    Fix Version/s: 2.6.1

[~sjlee0] backported this to 2.6.1, the patch applies cleanly. I just pushed the commit to
2.6.1 after running compilation and TestBlockReaderLocalLegacy which changed in the patch.

> 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
>              Labels: 2.6.1-candidate
>             Fix For: 2.7.0, 2.6.1
>
>         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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