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https://issues.apache.org/jira/browse/YARN-2786?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14196953#comment-14196953
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Vinod Kumar Vavilapalli commented on YARN-2786:
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I see the discussion on YARN-796, YARN-2495.
Both the implementations are going to be done soon, so we can agree to disagree
on having both a decentralized way and a central way to assign labels against
nodes.
bq. "Where did this label come from? I guess someone manually added it via the
shell at some point?"
This is simply audit/lineage. As part of YARN-2495, we can make sure an admin
can only configure it using only one of the mechanisms and not both. I doubt if
this is necessary, but sure.
bq. This is actually supporting my claim that adding cluster for this purpose
is a bad idea,
Don't follow. We need a "yarn cluster" for ton of other things that we don't
have today.
I can already list a few
{code}
yarn cluster --list-nodes
yarn cluster --list-nodes --status=UNHEALTHY
yarn cluster --list-racks
yarn cluster --current-resource-usage
{code}
> Create yarn cluster CLI to enable list node labels collection
> -------------------------------------------------------------
>
> Key: YARN-2786
> URL: https://issues.apache.org/jira/browse/YARN-2786
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: api, client, resourcemanager
> Reporter: Wangda Tan
> Assignee: Wangda Tan
> Attachments: YARN-2786-20141031-1.patch, YARN-2786-20141031-2.patch,
> YARN-2786-20141102-2.patch, YARN-2786-20141102-3.patch,
> YARN-2786-20141103-1-full.patch, YARN-2786-20141103-1-without-yarn.cmd.patch,
> YARN-2786-20141104-1-full.patch, YARN-2786-20141104-1-without-yarn.cmd.patch
>
>
> With YARN-2778, we can list node labels on existing RM nodes. But it is not
> enough, we should be able to:
> 1) list node labels collection
> The command should start with "yarn cluster ...", in the future, we can add
> more functionality to the "yarnClusterCLI"
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