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https://issues.apache.org/jira/browse/HDFS-3584?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15312138#comment-15312138
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Harsh J commented on HDFS-3584:
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HDFS-10240 appears to report a similar issue.
> Blocks are getting marked as corrupt with append operation under high load.
> ---------------------------------------------------------------------------
>
> Key: HDFS-3584
> URL: https://issues.apache.org/jira/browse/HDFS-3584
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 2.0.0-alpha
> Reporter: Brahma Reddy Battula
>
> Scenario:
> =========
> 1. There are 2 clients cli1 and cli2 cli1 write a file F1 and not closed
> 2. The cli2 will call append on unclosed file and triggers a leaserecovery
> 3. Cli1 is closed
> 4. Lease recovery is completed and with updated GS in DN and got BlockReport
> since there is a mismatch in GS the block got corrupted
> 5. Now we got a CommitBlockSync this will also fail since the File is already
> closed by cli1 and state in NN is Finalized
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