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https://issues.apache.org/jira/browse/HADOOP-1300?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12505463
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Hadoop QA commented on HADOOP-1300:
-----------------------------------
Integrated in Hadoop-Nightly #123 (See
[http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Nightly/123/])
> deletion of excess replicas does not take into account 'rack-locality'
> ----------------------------------------------------------------------
>
> Key: HADOOP-1300
> URL: https://issues.apache.org/jira/browse/HADOOP-1300
> Project: Hadoop
> Issue Type: Bug
> Components: dfs
> Affects Versions: 0.13.0
> Reporter: Koji Noguchi
> Assignee: Hairong Kuang
> Fix For: 0.14.0
>
> Attachments: excessDel.patch, excessDel1.patch
>
>
> One rack went down today, resulting in one missing block/file.
> Looking at the log, this block was originally over-replicated.
> 3 replicas on one rack and 1 replica on another.
> Namenode decided to delete the latter, leaving 3 replicas on the same rack.
> It'll be nice if the deletion is also rack-aware.
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