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https://issues.apache.org/jira/browse/YARN-3254?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16084684#comment-16084684
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Wangda Tan commented on YARN-3254:
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[~ajisakaa],
I think the original definition of JMX metrics compatibility is overkill, I can
understand the "semantic consistency" part, for example, change unit (from GB
to MB, etc.). For text fields such as report, we should be able to change them
if needed.
For example, YARN-90/YARN-6302 have already changed report field, if we
strictly follow the rule, we probably need to revert these patches as well.
I would prefer to continue improving the text field. And start discussion to
modify the compatibility rule.
cc: [~kasha] (original author of the compatibility doc) and
[[email protected]].
> HealthReport should include disk full information
> -------------------------------------------------
>
> Key: YARN-3254
> URL: https://issues.apache.org/jira/browse/YARN-3254
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: nodemanager
> Affects Versions: 2.6.0
> Reporter: Akira Ajisaka
> Assignee: Suma Shivaprasad
> Attachments: Screen Shot 2015-02-24 at 17.57.39.png, Screen Shot
> 2015-02-25 at 14.38.10.png, YARN-3254-001.patch, YARN-3254-002.patch
>
>
> When a NodeManager's local disk gets almost full, the NodeManager sends a
> health report to ResourceManager that "local/log dir is bad" and the message
> is displayed on ResourceManager Web UI. It's difficult for users to detect
> why the dir is bad.
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