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Review request for hive, Denys Kuzmenko, Marta Kuczora, Laszlo Pinter, and Peter Vary. Bugs: HIVE-22420 https://issues.apache.org/jira/browse/HIVE-22420 Repository: hive-git Description ------- DbTxnManager.stopHeartbeat() should be thread-safe, rollbackTxn() should check before calling MS client, if txn has been closed previously, to avoid sending 0 as txnId. Diffs ----- ql/src/java/org/apache/hadoop/hive/ql/lockmgr/DbTxnManager.java 943aa383bb Diff: https://reviews.apache.org/r/71705/diff/1/ Testing ------- Thanks, Aron Hamvas