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https://issues.apache.org/jira/browse/HDFS-15766?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jinglun updated HDFS-15766:
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Attachment: HDFS-15766.001.patch
Status: Patch Available (was: Open)
> RBF: MockResolver.getMountPoints() breaks the semantic of
> FileSubclusterResolver.
> ---------------------------------------------------------------------------------
>
> Key: HDFS-15766
> URL: https://issues.apache.org/jira/browse/HDFS-15766
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Jinglun
> Assignee: Jinglun
> Priority: Major
> Attachments: HDFS-15766.001.patch
>
>
> MockResolver.getMountPoints() breaks the semantic of
> FileSubclusterResolver.getMountPoints(). Currently it returns null when the
> path is a mount point and no mount points are under the path.
> {quote}Return zero-length list if the path is a mount point but there are no
> mount points under the path.
> {quote}
>
> This is required by router federation rename. I found this bug when writing
> unit test for the rbf rename. Let's fix it here to avoid mixing up with the
> router federation rename.
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