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https://issues.apache.org/jira/browse/HBASE-8352?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13633043#comment-13633043
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Jonathan Hsieh commented on HBASE-8352:
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bq. If hbase.snapshot.use_newdir is true we use .hbase_snapshot, if false we
use .snapshot
Since HDFS snapshots seems to have an api to enable it, we could query for that
instead of introducing a new config. We could also do a hadoop version check
type query (if 1.x use old default, if 2.x use new).
bq. We'd add both .snapshot and .hbase_snapshot to HBASE_NON_TABLE_DIRS
+1 to this in 0.94+. Regardless of what fix we choose, preemptively doing this
doesn't hurt.
bq. Thoughts? Too much effort?
I think if we put the warnings that show up in logs in, I'll be satisfied.
> 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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