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https://issues.apache.org/jira/browse/HDFS-7116?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14696698#comment-14696698
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Rakesh R commented on HDFS-7116:
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Hi All,
In the proposed patch, Datanode is sending {{balancerBandwidth}} value to the
Namenode through heartbeats. As we know this is done for consistency discussed
earlier in this jira. On a second look, I have another idea which will have
less overhead.
- We already have a set of datanode metrics exposed which can be used by
admins/monitoring tools. How about exposing {{balancerBandwidth}} value as a
Datanode metric? Here, admin/monitoring tool has to individually collect the
metrics from every Datanode.
> Add a command to get the bandwidth of balancer
> ----------------------------------------------
>
> Key: HDFS-7116
> URL: https://issues.apache.org/jira/browse/HDFS-7116
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: balancer & mover
> Reporter: Akira AJISAKA
> Assignee: Rakesh R
> Attachments: HDFS-7116-00.patch, HDFS-7116-01.patch
>
>
> Now reading logs is the only way to check how the balancer bandwidth is set.
> It would be useful for administrators if they can get the parameter via CLI.
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