Srikanth Kandula commented on YARN-3820:

Quick profile: the call to read /proc takes about 1ms per call. So, perhaps not 
a big deal. We are just trying to facilitate better usage mode for this API 

> Collect disks usages on the node
> --------------------------------
>                 Key: YARN-3820
>                 URL: https://issues.apache.org/jira/browse/YARN-3820
>             Project: Hadoop YARN
>          Issue Type: New Feature
>    Affects Versions: 3.0.0
>            Reporter: Robert Grandl
>            Assignee: Robert Grandl
>              Labels: yarn-common, yarn-util
>         Attachments: YARN-3820-1.patch, YARN-3820-2.patch, YARN-3820-3.patch, 
> YARN-3820-4.patch
> In this JIRA we propose to collect disks usages on a node. This JIRA is part 
> of a larger effort of monitoring resource usages on the nodes. 

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