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Posted to issues@kudu.apache.org by "Todd Lipcon (JIRA)" <ji...@apache.org> on 2016/12/21 08:58:58 UTC

[jira] [Created] (KUDU-1813) Scan at a specific timestamp doesn't include that timestamp as committed

Todd Lipcon created KUDU-1813:
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             Summary: Scan at a specific timestamp doesn't include that timestamp as committed
                 Key: KUDU-1813
                 URL: https://issues.apache.org/jira/browse/KUDU-1813
             Project: Kudu
          Issue Type: Bug
          Components: tablet
    Affects Versions: 1.2.0
            Reporter: Todd Lipcon
            Priority: Critical


Currently, if the user performs the following sequence:
- Insert a row
- ts = client_->GetLastObservedTimestamp()
- create a new scanner with READ_AT_SNAPSHOT set to 'ts'

they will not observe their own write. This seems to be due to incorrect usage of MvccSnapshot(ts) constructor which says that it considers all writes _before_ 'ts' to be committed, rather than _before or equal to_.



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