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https://issues.apache.org/jira/browse/HBASE-8352?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13633004#comment-13633004
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Matteo Bertozzi commented on HBASE-8352:
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{quote}Should order of steps #2 and #3 above be switched ?{quote}
yeah sort of I've missed a start the master step after the rename but maybe is
better in this way:
{code}
1. make sure all on-going snapshots activities have completed
2. shutdown All the masters
3. rename ".snapshot" under HBase root directory as ".hbase-snapshot"
4. upgrade the masters to 0.94.7+ release
(You now can perform clone or restore, but not taking snapshots)
5. upgrade the region servers to 0.94.7+ release
(You should not take snapshots until all the regions server are aligned to
0.94.7+ release)
{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 [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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