[ https://issues.apache.org/jira/browse/HIVE-865?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ning Zhang updated HIVE-865: ---------------------------- Attachment: HIVE-865.patch This patch added solves the Out-of-memory exception thrown by MapJoinOperator. The changes include: 1) make the persistent hashtable HTree non-transactional. (this is not the cause of out-of-memory error, but it may improve performance) 2) commit the RecordManager for every 100 record insertion. (this is the main cause of OOM issue). > mapjoin: memory leak for same key with very large number of values > ------------------------------------------------------------------ > > Key: HIVE-865 > URL: https://issues.apache.org/jira/browse/HIVE-865 > Project: Hadoop Hive > Issue Type: Bug > Components: Query Processor > Reporter: Namit Jain > Assignee: Ning Zhang > Attachments: HIVE-865.patch > > -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.