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[HIVE-9969] Avoid Utilities.getMapRedWork for spark [Spark Branch] - Hive - [issue]
...The method shouldn't be used for spark mode. Specifically, map work and reduce work have different plan paths in spark. Calling this method will leave lots of errors in executor's log:15/03/...
http://issues.apache.org/jira/browse/HIVE-9969    Author: Rui Li, 2015-03-31, 20:14
[HIVE-9924] Fix union12 and union31 for spark [Spark Branch] - Hive - [issue]
http://issues.apache.org/jira/browse/HIVE-9924    Author: Rui Li, 2015-03-12, 05:50
[HIVE-9927] MR doesn't produce correct result for runtime_skewjoin_mapjoin_spark - Hive - [issue]
...The test is added via HIVE-9659 to test runtime skew join with map join. It was mainly intended for spark but we found MR doesn't produce any result for the test....
http://issues.apache.org/jira/browse/HIVE-9927    Author: Rui Li, 2015-03-11, 14:24
[HIVE-9855] Runtime skew join doesn't work when skewed data only exists in big table - Hive - [issue]
...To reproduce, enable runtime skew join and then join two tables that skewed data only exists in one of them. The task will fail with the following exception:Error: java.lang.RuntimeException...
http://issues.apache.org/jira/browse/HIVE-9855    Author: Rui Li, 2015-03-09, 13:14
[HIVE-9869] Trunk doesn't build with hadoop-1 - Hive - [issue]
http://issues.apache.org/jira/browse/HIVE-9869    Author: Rui Li, 2015-03-05, 13:53
[HIVE-9561] SHUFFLE_SORT should only be used for order by query [Spark Branch] - Hive - [issue]
...The sortByKey shuffle launches probe jobs. Such jobs can hurt performance and are difficult to control. So we should limit the use of sortByKey to order by query only....
http://issues.apache.org/jira/browse/HIVE-9561    Author: Rui Li, 2015-02-19, 02:36
[HIVE-9696] Address RB comments for HIVE-9425 [Spark Branch] - Hive - [issue]
...A followup task of HIVE-9425.The pending RB comment can be found here....
http://issues.apache.org/jira/browse/HIVE-9696    Author: Rui Li, 2015-02-17, 07:00
[HIVE-9666] Improve some qtests - Hive - [issue]
...groupby7_noskew_multi_single_reducer.qgroupby_multi_single_reducer3.qparallel_join0.qunion3.qunion4.q...
http://issues.apache.org/jira/browse/HIVE-9666    Author: Rui Li, 2015-02-15, 03:30
[HIVE-9586] Too verbose log can hurt performance, we should always check log level first - Hive - [issue]
http://issues.apache.org/jira/browse/HIVE-9586    Author: Rui Li, 2015-02-11, 18:18
[HIVE-9574] Lazy computing in HiveBaseFunctionResultList may hurt performance [Spark Branch] - Hive - [issue]
...RowContainer.first may call InputFormat.getSplits, which is expensive. If we switch container and backupContainer frequently in HiveKVResultCache, it will downgrade performance....
http://issues.apache.org/jira/browse/HIVE-9574    Author: Rui Li, 2015-02-10, 19:38
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB