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Phabricator commented on HIVE-5276: ----------------------------------- cwsteinbach has commented on the revision "HIVE-5276 [jira] Skip useless string encoding stage for hiveserver2". INLINE COMMENTS ql/src/java/org/apache/hadoop/hive/ql/exec/ListSinkOperator.java:57 Let's get rid of this comment and anything special we're doing for Hadoop 0.17. We deprecated support for that version a long time ago. service/src/java/org/apache/hive/service/cli/operation/SQLOperation.java:98 I admit that I haven't investigated this closely, but the fact that we're overriding a user-configurable property with a hardcoded value seems like a red flag. If this is genuinely necessary can you please add a comment explaining the rationale? Thanks. ql/src/java/org/apache/hadoop/hive/ql/exec/DefaultFetchConverter.java:50 We deprecated support for 0.17 and 0.18 a long time ago. Please remove. common/src/java/org/apache/hadoop/hive/conf/HiveConf.java:667 Please add this to conf/hive-default.xml.template along with a template explaining what it does. Also, is this something that we really want to expose to users at this point in time? REVISION DETAIL https://reviews.facebook.net/D12879 To: JIRA, navis Cc: cwsteinbach > Skip useless string encoding stage for hiveserver2 > -------------------------------------------------- > > Key: HIVE-5276 > URL: https://issues.apache.org/jira/browse/HIVE-5276 > Project: Hive > Issue Type: Improvement > Components: HiveServer2 > Reporter: Navis > Assignee: Navis > Priority: Minor > Attachments: HIVE-5276.D12879.1.patch > > > Current hiveserver2 acquires rows in string format which is used for cli > output. Then convert them into row again and convert to final format lastly. > This is inefficient and memory consuming. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira