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https://issues.apache.org/jira/browse/HDFS-16791?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17678477#comment-17678477
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ASF GitHub Bot commented on HDFS-16791:
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mccormickt12 commented on PR #4967:
URL: https://github.com/apache/hadoop/pull/4967#issuecomment-1396405881
@steveloughran as I commented before, I added all the contract tests I could
find that made sense. Some level of functionality couldn't practically be
tested in the contract tests because they require some idea of mount points or
encyrption zones.
As far as the build failures go...
- The error blanks is legit and I will fix at the end (issue w/ my editor
and formatting for other repos)
- The other 4 failures seem unrelated to my changes as far as I can tell. I
scanned through them and didn't see anything that looked like it would be
related. I am assuming these regularly fail, can you confirm this assumption.
Let me know if there is anything else missing.
> New API for enclosing root path for a file
> ------------------------------------------
>
> Key: HDFS-16791
> URL: https://issues.apache.org/jira/browse/HDFS-16791
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Tom McCormick
> Assignee: Tom McCormick
> Priority: Major
> Labels: pull-request-available
>
> At LinkedIn we run many HDFS volumes that are federated by either
> ViewFilesystem or Router Based Federation. As our number of hdfs volumes
> grows, we have a growing need to migrate data seemlessly across volumes.
> Many frameworks have a notion of staging or temp directories, but those
> directories often live in random locations. We want an API getEnclosingRoot,
> which provides the root path a file or dataset.
> In ViewFilesystem / Router Based Federation, the enclosingRoot will be the
> mount point.
> We will also take into account other restrictions for renames like
> encryptions zones.
> If there are several paths (a mount point and an encryption zone), we will
> return the longer path
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