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  1. HBase
  2. HBASE-5754

data lost with gora continuous ingest test (goraci)

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Cannot Reproduce
    • Affects Version/s: 0.92.1
    • Fix Version/s: None
    • Component/s: None
    • Labels:
      None
    • Environment:

      10 node test cluster

      Description

      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 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:

      package version
      hadoop 0.20.205.0
      hbase 0.92.1
      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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              • Assignee:
                stack stack
                Reporter:
                ecn Eric Newton
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                • Created:
                  Updated:
                  Resolved: