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Posted to dev@tephra.apache.org by "Poorna Chandra (JIRA)" <ji...@apache.org> on 2017/06/20 00:55:00 UTC

[jira] [Created] (TEPHRA-235) Flushes and compactions can remove committed data

Poorna Chandra created TEPHRA-235:
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             Summary: Flushes and compactions can remove committed data
                 Key: TEPHRA-235
                 URL: https://issues.apache.org/jira/browse/TEPHRA-235
             Project: Tephra
          Issue Type: Bug
          Components: core
    Affects Versions: 0.12.0-incubating, 0.11.0-incubating
            Reporter: Poorna Chandra
            Assignee: Poorna Chandra
            Priority: Blocker
             Fix For: 0.13.0-incubating


Transaction co-processor uses the transaction snapshot generated by the Transaction Manager to remove deleted and invalid cells during HBase compactions and flushes. The co-processor expects the invalid list in the transaction snapshot to be sorted. However, the invalid list is not sorted during a snapshot creation in the Transaction Manager. This leads to invalid transactions becoming visible during compactions, and thus committed transactions with write pointers smaller than the invalid transaction will get removed.

We missed this piece when fixing TEPHRA-223.




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