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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8352) Rename '.snapshot' directory
Date Tue, 16 Apr 2013 17:25:16 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8352?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13633034#comment-13633034
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Ted Yu commented on HBASE-8352:
-------------------------------

bq. can we add some logging code that checks the .snapshot dir for dirs with .snapshotinfo's
in them
If 2.0.5-alpha is the underlying hdfs, I think accessing .snapshot dir would not be allowed.

Here was sample output from CLI:
{code}
[hbase@ip-10-141-186-51 hbase]$ hadoop dfs -ls /apps/hbase/data/.snapshot
ls: Cannot access /apps/hbase/data/.snapshot: No such file or directory.
{code}
                
> Rename '.snapshot' directory
> ----------------------------
>
>                 Key: HBASE-8352
>                 URL: https://issues.apache.org/jira/browse/HBASE-8352
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Ted Yu
>            Assignee: Ted Yu
>            Priority: Critical
>             Fix For: 0.98.0, 0.94.7, 0.95.1
>
>         Attachments: 8352-0.94-v1.txt, 8352-trunk.txt
>
>
> Testing HBase Snapshot on top of Hadoop's Snapshot branch (http://svn.apache.org/viewvc/hadoop/common/branches/HDFS-2802/),
we found that both features used '.snapshot' directory to store metadata.
> HDFS (built from HDFS-2802 branch) doesn't allow paths with .snapshot as a component
> From discussion on dev@hbase.apache.org, (see http://search-hadoop.com/m/kY6C3cXMs51),
consensus was to rename '.snapshot' directory in HBase so that both features can co-exist
smoothly.

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