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From "Jerry He (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-8760) possible loss of data in snapshot taken after region split
Date Tue, 18 Jun 2013 19:03:20 GMT
Jerry He created HBASE-8760:
-------------------------------

             Summary: possible loss of data in snapshot taken after region split
                 Key: HBASE-8760
                 URL: https://issues.apache.org/jira/browse/HBASE-8760
             Project: HBase
          Issue Type: Bug
          Components: snapshots
    Affects Versions: 0.94.8
            Reporter: Jerry He
            Assignee: Jerry He


Right after a region split but before the daughter regions are compacted, we have two daughter
regions containing Reference files to the parent hfiles.

If we take snapshot right at the moment, the snapshot will succeed, but it will only contain
the daughter Reference files. Since there is no hold on the parent hfiles, they will be deleted
by the HFile Cleaner after they are no longer needed by the daughter regions soon after.

A minimum we need to do is the keep these parent hfiles from being deleted. 

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