Teddy Choi created HIVE-20368: --------------------------------- Summary: Remove VectorTopNKeyOperator lock Key: HIVE-20368 URL: https://issues.apache.org/jira/browse/HIVE-20368 Project: Hive Issue Type: Bug Reporter: Teddy Choi Assignee: Teddy Choi
VectorTopNKeyOperator has a lock in line 199 as following. {code:java} priorityQueue.offer(WritableUtils.clone(keysWritable, getConfiguration())); {code} WritableUtils.clone calls Confgiruation.getClassByNameOrNull that has synchronized block. So it needs to run without locks. -- This message was sent by Atlassian JIRA (v7.6.3#76005)