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From "Zhe Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-9289) check genStamp when complete file
Date Thu, 29 Oct 2015 21:30:27 GMT

    [ https://issues.apache.org/jira/browse/HDFS-9289?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14981321#comment-14981321
] 

Zhe Zhang commented on HDFS-9289:
---------------------------------

A small ask for the next rev:
{code}
// BlockInfo#commitBlock
- this.set(getBlockId(), block.getNumBytes(), block.getGenerationStamp());
+ this.setNumBytes(block.getNumBytes());
{code}

We also need to add a test in the 04 patch. Otherwise LGTM.

> check genStamp when complete file
> ---------------------------------
>
>                 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
>
>
> 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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