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https://issues.apache.org/jira/browse/HDFS-15112?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17013762#comment-17013762
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Ayush Saxena commented on HDFS-15112:
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Thanx [~elgoiri] for the report.
Just to catch the intent, is our motive to just denote to the client, that the
file isn't lost but we are facing some cluster issues?
NoNamenodeException is Ok to denote, but I think this won't be retried, if the
cluster issue is temporary or at only one router, we may consider it being
retried on same router or maybe on another router.
> RBF: do not return FileNotFoundException when a subcluster is unavailable
> --------------------------------------------------------------------------
>
> Key: HDFS-15112
> URL: https://issues.apache.org/jira/browse/HDFS-15112
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Íñigo Goiri
> Assignee: Íñigo Goiri
> Priority: Major
> Attachments: HDFS-15112.000.patch, HDFS-15112.patch
>
>
> If we have a mount point using HASH_ALL across two subclusters and one of
> them is down, we may return FileNotFoundException while the file is just in
> the unavailable subcluster.
> We should not return FileNotFoundException but something that shows that the
> subcluster is unavailable.
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