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https://issues.apache.org/jira/browse/HADOOP-1811?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lei Xu updated HADOOP-1811:
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Component/s: (was: mapred)
> Improve debugabillity
> ---------------------
>
> Key: HADOOP-1811
> URL: https://issues.apache.org/jira/browse/HADOOP-1811
> Project: Hadoop Core
> Issue Type: New Feature
> Components: dfs
> Reporter: Senthil Subramanian
>
> Is there a plan to provide an option to enable metrics (both system and
> application level) collection on the JobTracker and NameNode from
> TaskTrackers and DataNodes respectively? Visualizing this data can help us
> understand what is happening on the various nodes in the cluster in terms of
> CPU, Memory, Disk Utilization, Network IO etc and possibly spot issues when
> cluster performance degrades.
> Any thoughts on this are welcome.
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