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https://issues.apache.org/jira/browse/HDFS-12942?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Anu Engineer updated HDFS-12942:
--------------------------------
Resolution: Fixed
Hadoop Flags: Reviewed
Fix Version/s: 3.0.1
Target Version/s: 3.0.1
Status: Resolved (was: Patch Available)
[~virajith],[~arpitagarwal] Thanks for the reviews and comments. [~ajayydv]
Thanks for the contribution. I have committed this patch to trunk.
> Synchronization issue in FSDataSetImpl#moveBlock
> ------------------------------------------------
>
> Key: HDFS-12942
> URL: https://issues.apache.org/jira/browse/HDFS-12942
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Ajay Kumar
> Assignee: Ajay Kumar
> Priority: Major
> Fix For: 3.0.1
>
> Attachments: HDFS-12942.001.patch, HDFS-12942.002.patch,
> HDFS-12942.003.patch, HDFS-12942.004.patch, HDFS-12942.005.patch,
> HDFS-12942.006.patch
>
>
> FSDataSetImpl#moveBlock works in following following 3 steps:
> # first creates a new replicaInfo object
> # calls finalizeReplica to finalize it.
> # Calls removeOldReplica to remove oldReplica.
> A client can potentially append to the old replica between step 1 and 2.
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