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https://issues.apache.org/jira/browse/HDFS-1547?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12980942#action_12980942
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Suresh Srinivas commented on HDFS-1547:
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Just to clarify my previous comment:
> Note this problem also exists when decommissioning is in progress for large
> number of nodes.
This is the current behavior for decommisioning nodes (without the patch) and
has not caused real issues. Decommissioning more than half the nodes and
expecting cluster to run smoothly does not seem like the right thing to do,
because of several issues I have enumerated above.
> Improve decommission mechanism
> ------------------------------
>
> Key: HDFS-1547
> URL: https://issues.apache.org/jira/browse/HDFS-1547
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: name-node
> Affects Versions: 0.23.0
> Reporter: Suresh Srinivas
> Assignee: Suresh Srinivas
> Fix For: 0.23.0
>
> Attachments: HDFS-1547.1.patch, HDFS-1547.patch
>
>
> Current decommission mechanism driven using exclude file has several issues.
> This bug proposes some changes in the mechanism for better manageability. See
> the proposal in the next comment for more details.
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