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Date: Tue, 7 Mar 2017 05:08:33 +0000 (UTC)
From: "Lukas Majercak (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Message-ID: <JIRA.13048381.1488744070000.15915.1488863313331@Atlassian.JIRA>
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Subject: [jira] [Updated] (HDFS-11499) Decommissioning stuck because of
 failing recovery
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archived-at: Tue, 07 Mar 2017 05:08:42 -0000


     [ https://issues.apache.org/jira/browse/HDFS-11499?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lukas Majercak updated HDFS-11499:
----------------------------------
    Status: Open  (was: Patch Available)

> Decommissioning stuck because of failing recovery
> -------------------------------------------------
>
>                 Key: HDFS-11499
>                 URL: https://issues.apache.org/jira/browse/HDFS-11499
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: hdfs, namenode
>    Affects Versions: 3.0.0-alpha2, 2.7.3, 2.7.2, 2.7.1
>            Reporter: Lukas Majercak
>            Assignee: Lukas Majercak
>              Labels: blockmanagement, decommission, recovery
>             Fix For: 3.0.0-alpha3
>
>         Attachments: HDFS-11499.02.patch, HDFS-11499.03.patch, HDFS-11499.patch
>
>
> Block recovery will fail to finalize the file if the locations of the last, incomplete block are being decommissioned. Vice versa, the decommissioning will be stuck, waiting for the last block to be completed.
> {code:xml}
> org.apache.hadoop.ipc.RemoteException(java.lang.IllegalStateException): Failed to finalize INodeFile testRecoveryFile since blocks[255] is non-complete, where blocks=[blk_1073741825_1001, blk_1073741826_1002...
> {code}
> The fix is to count replicas on decommissioning nodes when completing last block in BlockManager.commitOrCompleteLastBlock, as we know that the DecommissionManager will not decommission a node that has UC blocks.


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