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Posted to hdfs-issues@hadoop.apache.org by "Vinayakumar B (JIRA)" <ji...@apache.org> on 2017/05/02 07:00:15 UTC
[jira] [Updated] (HDFS-10614) Appended blocks can be closed even
before IBRs from DataNodes
[ https://issues.apache.org/jira/browse/HDFS-10614?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Vinayakumar B updated HDFS-10614:
---------------------------------
Attachment: HDFS-10614.03.patch
Updated the patch.
Added genstamp check before removing the storage.
Thanks [~jingzhao] for good suggestion.
Apologies for delayed updated on patch.
> 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, HDFS-10614.03.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 closed.
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