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From "Benoit Sigoure (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-9879) Can't undelete a KeyValue
Date Fri, 01 Nov 2013 23:56:19 GMT
Benoit Sigoure created HBASE-9879:
-------------------------------------

             Summary: Can't undelete a KeyValue
                 Key: HBASE-9879
                 URL: https://issues.apache.org/jira/browse/HBASE-9879
             Project: HBase
          Issue Type: Bug
    Affects Versions: 0.96.0
            Reporter: Benoit Sigoure


Test scenario:

put(KV, timestamp=100)
put(KV, timestamp=200)
delete(KV, timestamp=200, with MutationProto.DeleteType.DELETE_ONE_VERSION)
get(KV) => returns value at timestamp=100 (OK)
put(KV, timestamp=200)
get(KV) => returns value at timestamp=100 (but not the one at timestamp=200 that was "reborn"
by the previous put)

Is that normal?

I ran into this bug while running the integration tests at https://github.com/OpenTSDB/asynchbase/pull/60
– the first time you run it, it passes, but after that, it keeps failing.  Sorry I don't
have the corresponding HTable-based code but that should be fairly easy to write.

I only tested this with 0.96.0, dunno yet how this behaved in prior releases.

My hunch is that the tombstone added by the DELETE_ONE_VERSION keeps shadowing the value even
after it's reborn.



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