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https://issues.apache.org/jira/browse/HDFS-14406?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16822257#comment-16822257
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Erik Krogen commented on HDFS-14406:
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I don't have time to take a full look at the patch today, but will give my 2c
on this question:
{quote}
Kept this per user per user per method metrics. What do you guys think of this
idea?
{quote}
I don't think per-user per-method metrics are a good idea. In my current
system, just wading through the overall system list of per-method metrics is a
daunting task. For installations with large user counts (100s or 1000s) this
will make these metrics completely unusable due to their huge volume.
> Add per user RPC Processing time
> --------------------------------
>
> Key: HDFS-14406
> URL: https://issues.apache.org/jira/browse/HDFS-14406
> Project: Hadoop HDFS
> Issue Type: Improvement
> Affects Versions: 3.2.0
> Reporter: Xue Liu
> Assignee: Xue Liu
> Priority: Minor
> Fix For: 3.2.0
>
> Attachments: HDFS-14406.001.patch, HDFS-14406.002.patch,
> HDFS-14406.003.patch, HDFS-14406.004.patch, HDFS-14406.005.patch,
> HDFS-14406.006.patch
>
>
> For a shared cluster we would want to separate users' resources, as well as
> having our metrics reflecting on the usage, latency, etc, for each user.
> This JIRA aims to add per user RPC processing time metrics and expose it via
> JMX.
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