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https://issues.apache.org/jira/browse/HDFS-3027?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aaron T. Myers updated HDFS-3027:
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Attachment: HDFS-3027-HDFS-1623.patch
Here's a patch which addresses the issue. Over on HDFS-2920 (where this patch
was originally posted) Eli had the following feedback:
bq. !nameNodeHasResourcesAvailable implies "The NameNode has run out of
resources" instead of the "NameNode is low on resources". It would be even
better if the message was more specific (eg mentioned lack of inodes of disk
space)
Yea, agree, but to do that would be a more invasive change, and more
fundamental to to the way the NN currently checks resources, to return a status
and a reason. Might if I punt that to another JIRA?
> HA: Implement a simple NN health check
> --------------------------------------
>
> Key: HDFS-3027
> URL: https://issues.apache.org/jira/browse/HDFS-3027
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ha, name-node
> Affects Versions: HA branch (HDFS-1623)
> Reporter: Aaron T. Myers
> Assignee: Aaron T. Myers
> Attachments: HDFS-3027-HDFS-1623.patch
>
>
> This JIRA is to address a TODO in NameNode about actually implementing the
> checkHealth RPC.
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