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https://issues.apache.org/jira/browse/HDFS-1547?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12981013#action_12981013
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Suresh Srinivas commented on HDFS-1547:
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The suggestion you provided for including transceiver count for *
decommissioned * node will not work. Given that decomissioned nodes are
provided as the last location for reads, very rarely they will be used for
reading and hence will not affect the average load. However, I do not mind
adding it, even if it marginally improves the situation.
You are correct, the update stats in the current patch has a bug. I will fix it
and add a unit test to cover it.
> 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, show-stats-broken.txt
>
>
> 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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