[ https://issues.apache.org/jira/browse/HIVE-20368?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Teddy Choi updated HIVE-20368: ------------------------------ Attachment: HIVE-20368.2.patch > 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 > Priority: Major > Labels: pull-request-available > Attachments: HIVE-20368.1.patch, HIVE-20368.2.patch > > > 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)