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Posted to common-dev@hadoop.apache.org by "dhruba borthakur (JIRA)" <ji...@apache.org> on 2007/05/02 00:18:15 UTC
[jira] Updated: (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:all-tabpanel ]
dhruba borthakur updated HADOOP-1184:
-------------------------------------
Attachment: decommissionOneReplica6.patch
The previous patch did not apply cleanly to trunk anymore because FSNamesystem has been split into multiple files. Here is a patch that applies cleanly to trunk.
> 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: decommissionOneReplica3.patch, decommissionOneReplica4.patch, decommissionOneReplica5.patch, decommissionOneReplica6.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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