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From "Jason Lowe (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-2695) Support continuously looking reserved container with node labels
Date Wed, 17 Aug 2016 20:16:20 GMT

     [ https://issues.apache.org/jira/browse/YARN-2695?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Jason Lowe updated YARN-2695:
    Attachment: YARN-2695.001.patch

We've run into a number of situations where the lack of reservations-continue-looking support
for labelled nodes has caused problems, so it would be good to get some traction on this.
 Attaching a patch that is a port to trunk of what we've been running on our 2.7 release.
 It simply turns off the "only for unlabelled nodes" checks for the feature.

I think this works fine for something like 2.7 with exclusive labels.  When it goes looking
for another reservation to release it will be a reservation against the same label.  For non-exclusive
labels this simplistic approach may not be sufficient.

> Support continuously looking reserved container with node labels
> ----------------------------------------------------------------
>                 Key: YARN-2695
>                 URL: https://issues.apache.org/jira/browse/YARN-2695
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: capacityscheduler, resourcemanager
>            Reporter: Wangda Tan
>            Assignee: Wangda Tan
>         Attachments: YARN-2695.001.patch
> YARN-1769 improved capacity scheduler to continuously look at reserved container when
trying to reserve/allocate resource.
> This should be respected when node/resource-request/queue has node label.

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