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Posted to common-dev@hadoop.apache.org by "Raghu Angadi (JIRA)" <ji...@apache.org> on 2007/03/30 02:24:25 UTC

[jira] Commented: (HADOOP-1184) Decommission fails if a block that needs replication has only one replica

    [ https://issues.apache.org/jira/browse/HADOOP-1184?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12485390 ] 

Raghu Angadi commented on HADOOP-1184:
--------------------------------------

> It also removes method filterDecommissionedNodes() because it was not essential.

HADOOP-988 also does this.


> Decommission fails if a block that needs replication has only one replica
> -------------------------------------------------------------------------
>
>                 Key: HADOOP-1184
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1184
>             Project: Hadoop
>          Issue Type: Bug
>          Components: dfs
>            Reporter: dhruba borthakur
>         Attachments: decommissionOneReplica.patch
>
>
> If the only replica of a block resides on a node being decommissioned, then the decommission command does not complete. The blocks do not get added to neededReplication because neededReplications.update() believes that the number of current replicas is zero.

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