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https://issues.apache.org/jira/browse/HBASE-8352?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13633071#comment-13633071
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Jonathan Hsieh commented on HBASE-8352:
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bq. If 2.0.5-alpha is the underlying hdfs, I think accessing .snapshot dir
would not be allowed.
I thought hdfs snapshots dirs are readable and browseable just like normal
dirs. Only direct write operations would be blocked. Is this incorrect?
bq. w.r.t. Lars' suggestion of introducing 'hbase.snapshot.use_newdir' config
parameter, I think we'd better keep logic simple - considering HBase snapshots
usage is in very early stage.
I agree with keeping it simple, but I have to insist that dealing with
compatibility is one of the consequences of backporting new features to stable
releases. Early or not it has been released in a stable apache hbase version.
> 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, 8352-trunk-v2.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 [email protected], (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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