[jira] [Created] (HIVE-10521) TxnHandler.timeOutTxns only times out some of the expired transactions

["Alan Gates (JIRA)" <ji...@apache.org>]

Alan Gates created HIVE-10521:
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             Summary: TxnHandler.timeOutTxns only times out some of the expired transactions
                 Key: HIVE-10521
                 URL: https://issues.apache.org/jira/browse/HIVE-10521
             Project: Hive
          Issue Type: Bug
          Components: Transactions
    Affects Versions: 1.0.0, 0.14.0, 1.1.0
            Reporter: Alan Gates
            Assignee: Alan Gates


{code}
      for (int i = 0; i < 20 && rs.next(); i++) deadTxns.add(rs.getLong(1));
      // We don't care whether all of the transactions get deleted or not,
      // if some didn't it most likely means someone else deleted them in the interum
      if (deadTxns.size() > 0) abortTxns(dbConn, deadTxns);
{code}
While it makes sense to limit the number of transactions aborted in one pass (since this get's translated to an IN clause) we should still make sure all are timed out.  Also, 20 seems pretty small as a batch size.



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