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From "Vinayakumar B (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-10614) Appended blocks can be closed even before IBRs from DataNodes
Date Tue, 12 Jul 2016 16:11:20 GMT

     [ https://issues.apache.org/jira/browse/HDFS-10614?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Vinayakumar B updated HDFS-10614:
    Attachment: HDFS-10614.02.patch

Uploaded patch with different fix. I feel this is logically correct place to fix this.
Please review. 

> Appended blocks can be closed even before IBRs from DataNodes
> -------------------------------------------------------------
>                 Key: HDFS-10614
>                 URL: https://issues.apache.org/jira/browse/HDFS-10614
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Vinayakumar B
>            Assignee: Vinayakumar B
>         Attachments: HDFS-10614.01.patch, HDFS-10614.02.patch
> Scenario:
>    1. Open the file for append()
>    2. Trigger append pipeline setup by adding some data.
>    3. Consider RECEIVING IBRs of DNs reaches NN first.
>    4. updatePipeline() rpc sent to namenode to update the pipeline.
>    5. Now, if complete() is called on the file even before closing the pipeline, then
block will be COMPLETE, even before block is actually FINALIZED at DN side and file will be

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