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https://issues.apache.org/jira/browse/HDFS-14167?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16727553#comment-16727553
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Ayush Saxena commented on HDFS-14167:
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Ohh!! My bad.
I was missing recently committed HDFS-13869.
Not sure why did we returned 0 (which is a legal entry for most cases) where we
are logging too that we are unable to get the actual value.Even when for the
present case too.when we didn't had the value we returned -1 (which is not
valid).
Well not related to what is being handled here.
Thanx [~elgoiri] for clarifying!!! The patch Looks Good :)
> RBF: Add stale nodes to federation metrics
> ------------------------------------------
>
> Key: HDFS-14167
> URL: https://issues.apache.org/jira/browse/HDFS-14167
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Íñigo Goiri
> Assignee: Íñigo Goiri
> Priority: Major
> Attachments: HDFS-14167-HDFS-13891.000.patch
>
>
> The federation metrics mimic the Namenode FSNamesystemState. However, the
> stale datanodes are not collected.
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