Naganarasimha G R commented on YARN-2495:

Hi [~wangda],
Thanks for discussing and summarizing this, few points to discuss:
# YARN-2923 (configuration based NodeLabelProviderService), what is the scope 
of this jira as its again one more classification under {{distributed}} ? 
whether is it req? 
# Apart from the Vinod's suggestion, i would like to add one more change : In 
some jiras we were discussing to have fail fast approach i.e. in our case if we 
configure script based distributed configurations and the script file doesn't 
exist, rights not sufficient etc.. then NM should fail to start.
# yarn-2980 is mostly just moving NodeHealthScriptRunner to HadoopCommon and 
the code in it differs a lot than what we req, if  you remember earlier i had 
refactored that code and make it reusable for our scenario but you had 
suggested not to touch the existing NodeHealthScriptRunner and  to make 
ScriptBasedNodeLabelsProvider similar NodeHealthScript serving the needs of 
Node labels.
# Earlier target version was mentioned as 2.6, do we modify it to 2.7 or 2.8?

> 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_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

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