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https://issues.apache.org/jira/browse/HDFS-12897?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16304274#comment-16304274
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LiXin Ge edited comment on HDFS-12897 at 12/27/17 6:41 AM:
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Since the directories which under the {{.snapshot}} didn't not inherit (and
will not inherit) the EC policy from the {{.snapshot}} directory, and people
was not allowed to set EC policy on it, the EC policy of {{.snapshot}} should
retain the status of {{unspecified}}.
Patch is available for review now, thanks.
was (Author: gelixin):
Since the directories which under the {{.snapshot}} didn't not inherit (and
will not inherit) the EC policy from the {{.snapshot}} directory, and people
was not allowed to set EC policy on it, the EC policy of {{.snapshot}} should
retain the status of {{unspecified}}.
> Path not found when we get the ec policy for a .snapshot dir
> ------------------------------------------------------------
>
> Key: HDFS-12897
> URL: https://issues.apache.org/jira/browse/HDFS-12897
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: erasure-coding, hdfs, snapshots
> Affects Versions: 3.0.0-alpha1, 3.1.0
> Reporter: Harshakiran Reddy
> Assignee: LiXin Ge
> Attachments: HDFS-12897.001.patch
>
>
> Scenario:-
> ---------------
> Operation on snapshot dir.
> *EC policy*
> bin> ./hdfs ec -getPolicy -path /dir/
> RS-3-2-1024k
> bin> ./hdfs ec -getPolicy -path /dir/.snapshot/
> {{FileNotFoundException: Path not found: /dir/.snapshot}}
> bin> ./hdfs dfs -ls /dir/.snapshot/
> Found 2 items
> drwxr-xr-x - user group 0 2017-12-05 12:27 /dir/.snapshot/s1
> drwxr-xr-x - user group 0 2017-12-05 12:28 /dir/.snapshot/s2
> *Storagepolicies*
> bin> ./hdfs storagepolicies -getStoragePolicy -path /dir/.snapshot/
> {{The storage policy of /dir/.snapshot/ is unspecified}}
> bin> ./hdfs storagepolicies -getStoragePolicy -path /dir/
> The storage policy of /dir/:
> BlockStoragePolicy{COLD:2, storageTypes=[ARCHIVE], creationFallbacks=[],
> replicationFallbacks=[]}
> *Which is the correct behavior ?*
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