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From "Eric Newton (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-5754) data lost with gora continuous ingest test (goraci)
Date Mon, 09 Apr 2012 21:17:16 GMT
data lost with gora continuous ingest test (goraci)

                 Key: HBASE-5754
                 URL: https://issues.apache.org/jira/browse/HBASE-5754
             Project: HBase
          Issue Type: Bug
    Affects Versions: 0.92.1
         Environment: 10 node test cluster
            Reporter: Eric Newton

Keith Turner re-wrote the accumulo continuous ingest test using gora, which has both hbase
and accumulo back-ends.

I put a billion entries into HBase, and ran the Verify map/reduce job.  The verification failed
because about 21K entries were missing.  The goraci [README|https://github.com/keith-turner/goraci]
explains the test, and how it detects missing data.

I re-ran the test with 100 million entries, and it verified successfully.  
Both of the times I tested using a billion entries, the verification failed.
If I run the verification step twice, the results are consistent, so the problem is
probably not on the verify step.

Here's the versions of the various packages:

|gora|http://svn.apache.org/repos/asf/gora/trunk r1311277|
|goraci|https://github.com/ericnewton/goraci  tagged 2012-04-08|

The change I made to goraci was to configure it for hbase and to allow it to build properly.

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