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https://issues.apache.org/jira/browse/HDFS-14284?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16942313#comment-16942313
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Íñigo Goiri commented on HDFS-14284:
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[~brahmareddy], the main reason for me to open this JIRA was that we had one
Router that had issues (no access to the store) and it was very hard to find it.
We have 40+ Routers in our deployment and I had to go one by one.
Currently, the client assumes one knows the Namenode (or Router) that one is
interacting with.
This is not true for RBF and any Router can be replying.
> RBF: Log Router identifier when reporting exceptions
> ----------------------------------------------------
>
> Key: HDFS-14284
> URL: https://issues.apache.org/jira/browse/HDFS-14284
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Íñigo Goiri
> Assignee: hemanthboyina
> Priority: Major
> Attachments: HDFS-14284.001.patch, HDFS-14284.002.patch
>
>
> The typical setup is to use multiple Routers through
> ConfiguredFailoverProxyProvider.
> In a regular HA Namenode setup, it is easy to know which NN was used.
> However, in RBF, any Router can be the one reporting the exception and it is
> hard to know which was the one.
> We should have a way to identify which Router/Namenode was the one triggering
> the exception.
> This would also apply with Observer Namenodes.
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