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Posted to dev@ignite.apache.org by "Vladimir Ozerov (JIRA)" <ji...@apache.org> on 2018/08/20 08:52:00 UTC

[jira] [Created] (IGNITE-9322) MVCC: implement deadlock detector

Vladimir Ozerov created IGNITE-9322:
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             Summary: MVCC: implement deadlock detector
                 Key: IGNITE-9322
                 URL: https://issues.apache.org/jira/browse/IGNITE-9322
             Project: Ignite
          Issue Type: Task
          Components: mvcc
            Reporter: Vladimir Ozerov


Deadlocks are not uncommon during SQL execution.

We need to implement distributed deadlock detection protocol for MVCC. Essentially, nodes should exchange some map of tx wait lists, and try to find a loop. If loop is found, then one of problematic transactions should be rolled back.



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