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https://issues.apache.org/jira/browse/HDFS-9289?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chang Li updated HDFS-9289:
---------------------------
    Attachment: HDFS-9289.7.patch

Thanks [~daryn] and [~zhz] for review and comment! 
I have talked to Daryn and he agrees to relegate the new exception work to a 
new jira.
the updated .7 address [~zhz]'s suggestion of consolidate two methods of 
{{addBlockToFile}} and {{addStripedBlockToFile}} and rename {{TestCommitBlock}} 
class to {{TestCommitBlockWithInvalidGenStamp}}

> 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, HDFS-9289.7.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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