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From "Inigo Goiri (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-5356) NodeManager should communicate physical resource capability to ResourceManager
Date Mon, 18 Jul 2016 17:55:20 GMT

     [ https://issues.apache.org/jira/browse/YARN-5356?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Inigo Goiri updated YARN-5356:
------------------------------
    Attachment: YARN-5356.001.patch

Renaming to physical resources and adding to RMNode.

> NodeManager should communicate physical resource capability to ResourceManager
> ------------------------------------------------------------------------------
>
>                 Key: YARN-5356
>                 URL: https://issues.apache.org/jira/browse/YARN-5356
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: nodemanager, resourcemanager
>    Affects Versions: 3.0.0-alpha1
>            Reporter: Nathan Roberts
>            Assignee: Inigo Goiri
>         Attachments: YARN-5356.000.patch, YARN-5356.001.patch
>
>
> Currently ResourceUtilization contains absolute quantities of resource used (e.g. 4096MB
memory used). It would be good if the NM also communicated the actual physical resource capabilities
of the node so that the RM can use this data to schedule more effectively (overcommit, etc)
> Currently the only available information is the Resource the node registered with (or
later updated using updateNodeResource). However, these aren't really sufficient to get a
good view of how utilized a resource is. For example, if a node reports 400% CPU utilization,
does that mean it's completely full, or barely utilized? Today there is no reliable way to
figure this out.
> [~elgoiri] - Lots of good work is happening in YARN-2965 so curious if you have thoughts/opinions
on this?



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