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https://issues.apache.org/jira/browse/YARN-3717?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14559975#comment-14559975
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Wangda Tan commented on YARN-3717:
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[~Naganarasimha],
Thanks for thinking about this, mostly makes sense to me. Now we lack of some
necessary information showing on web page that makes node label debugging is
hard.
For RM logs, I think most of them are available in debug mode. Such as
user-limit, am-resource-limit, queue-limit, etc. It may be hard to add them to
log level, because if a job is hung, every node heartbeat cannot allocate
resource for the job. If the cluster has lots of nodes, the log message # will
be huge.
I suggest to focus on node label RM web UI changes in this ticket. I will edit
title/desc a little bit to make sure it reflects what we want to do.
> Improve debug-ability of Node Labels
> ------------------------------------
>
> Key: YARN-3717
> URL: https://issues.apache.org/jira/browse/YARN-3717
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Naganarasimha G R
> Assignee: Naganarasimha G R
> Attachments: RMLogsForHungJob.log
>
>
> Few improvements which i want to suggest are :
> 1> Add the default-node-Label expression for each queue in WebUI
> 2> In Application/Appattempt page show the app configured node label
> expression for AM and Job (may be we need to store in ATS too)
> 3> RM log for the application ID which has hung has been attached, it is
> difficult to analyze as there is no information related to the labels in it .
> I was intending to add @
> "2015-05-26 00:19:25,681 INFO
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue:
> Application added - appId: application_1432579630889_0001 user:
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue$User@35b4193e,
> leaf-queue: default #user-pending-applications: 0 #user-active-applications:
> 1 #queue-pending-applications: 0 #queue-active-applications: 1" open for
> suggestions for adding Info logs
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