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From "Eric Payne (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-6948) DN rejects blocks if it has older UC block
Date Wed, 10 Sep 2014 18:06:34 GMT

     [ https://issues.apache.org/jira/browse/HDFS-6948?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Eric Payne updated HDFS-6948:
-----------------------------
    Attachment: HDFS-6948.201409101802.txt

Thanks [~daryn] and [~kihwal]. 

bq. use instanceof to verify it's a {{ReplicaInPipeline}}

I have updated the patch with this change.

> DN rejects blocks if it has older UC block
> ------------------------------------------
>
>                 Key: HDFS-6948
>                 URL: https://issues.apache.org/jira/browse/HDFS-6948
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha, 3.0.0
>            Reporter: Daryn Sharp
>            Assignee: Eric Payne
>         Attachments: HDFS-6948.201409052147.txt, HDFS-6948.201409081817.txt, HDFS-6948.201409101802.txt
>
>
> DNs appear to always reject blocks, even with newer genstamps, if it already has a UC
copy in its tmp dir.
> {noformat}ReplicaAlreadyExistsException: Block
> XXX already
> exists in state TEMPORARY and thus cannot be created{noformat}



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