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From "churro morales (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-15321) Ability to open a HRegion from hdfs snapshot.
Date Thu, 25 Feb 2016 00:19:18 GMT
churro morales created HBASE-15321:

             Summary: Ability to open a HRegion from hdfs snapshot.
                 Key: HBASE-15321
                 URL: https://issues.apache.org/jira/browse/HBASE-15321
             Project: HBase
          Issue Type: New Feature
    Affects Versions: 2.0.0
            Reporter: churro morales
             Fix For: 2.0.0

Now that hdfs snapshots are here, we started to run our mapreduce jobs over hdfs snapshots.
 The thing is, hdfs snapshots are read-only point-in-time copies of the file system.  Thus
we had to modify the section of code that initialized the region internals in HRegion.   We
have to skip cleanup of certain directories if the HRegion is backed by a hdfs snapshot. 
I have a patch for trunk with some basic tests if folks are interested.  

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