[
https://issues.apache.org/jira/browse/YARN-2495?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14382389#comment-14382389
]
Wangda Tan commented on YARN-2495:
----------------------------------
Hi [~john.jian.fang],
Thanks for your comments,
I'm not sure if I completely understood what you said. Did you mean there're
two different types of NMs, which is: some labels are not changed in NM's
lifetime, some labels could be modified when NM's running (I think the
decommission case you provided is better to be resolved by graceful NM
decommission instead of node label.).
Having a centralized node label list is mostly for resource planning, you can
take a look at conversions on YARN-3214 for more details about resource
planning stuffs.
Regardless of the centralized node label list in RM side, I think current
implementation of attached patch should work for you. Even if labels could be
modified via heartbeat, but you can simply not change them in your own script,
if there's no changes of NM's labels, no duplicated data will be sent to RM
side.
Wangda
> Allow admin specify labels from each NM (Distributed configuration)
> -------------------------------------------------------------------
>
> Key: YARN-2495
> URL: https://issues.apache.org/jira/browse/YARN-2495
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: resourcemanager
> Reporter: Wangda Tan
> Assignee: Naganarasimha G R
> Attachments: YARN-2495.20141023-1.patch, YARN-2495.20141024-1.patch,
> YARN-2495.20141030-1.patch, YARN-2495.20141031-1.patch,
> YARN-2495.20141119-1.patch, YARN-2495.20141126-1.patch,
> YARN-2495.20141204-1.patch, YARN-2495.20141208-1.patch,
> YARN-2495.20150305-1.patch, YARN-2495.20150309-1.patch,
> YARN-2495.20150318-1.patch, YARN-2495.20150320-1.patch,
> YARN-2495.20150321-1.patch, YARN-2495.20150324-1.patch,
> YARN-2495_20141022.1.patch
>
>
> Target of this JIRA is to allow admin specify labels in each NM, this covers
> - User can set labels in each NM (by setting yarn-site.xml (YARN-2923) or
> using script suggested by [~aw] (YARN-2729) )
> - NM will send labels to RM via ResourceTracker API
> - RM will set labels in NodeLabelManager when NM register/update labels
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
