Optimize RCFile's performance by removeing all synchronized modifiers ---------------------------------------------------------------------
Key: HIVE-502 URL: https://issues.apache.org/jira/browse/HIVE-502 Project: Hadoop Hive Issue Type: Improvement Components: Query Processor Reporter: He Yongqiang Tests by Zheng and me both show that removing all synchronized modifiers can improve RCFile's performance by about 15+%. This will make RCFile's reader and writer not thread safe any longer. This will be ok,since hive always does its work in single thread. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.