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From "Chang Li (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-9289) Make DataStreamer#block thread safe and verify genStamp in commitBlock
Date Fri, 30 Oct 2015 14:21:27 GMT

    [ https://issues.apache.org/jira/browse/HDFS-9289?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14982617#comment-14982617
] 

Chang Li commented on HDFS-9289:
--------------------------------

Thanks [~zhz], the jira title looks good to me. Looking forward to your further review.

> Make DataStreamer#block thread safe and verify genStamp in commitBlock
> ----------------------------------------------------------------------
>
>                 Key: HDFS-9289
>                 URL: https://issues.apache.org/jira/browse/HDFS-9289
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Chang Li
>            Assignee: Chang Li
>            Priority: Critical
>         Attachments: HDFS-9289.1.patch, HDFS-9289.2.patch, HDFS-9289.3.patch, HDFS-9289.4.patch,
HDFS-9289.5.patch, HDFS-9289.6.patch
>
>
> we have seen a case of corrupt block which is caused by file complete after a pipelineUpdate,
but the file complete with the old block genStamp. This caused the replicas of two datanodes
in updated pipeline to be viewed as corrupte. Propose to check genstamp when commit block



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