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[HIVE-9492] Enable caching in MapInput for Spark - Hive - [issue]
...Because of the IOContext problem (HIVE-8920, HIVE-9084), RDD caching is currently disabled in MapInput. Prototyping shows that the problem can solved. Thus, we should formalize the prototype...
http://issues.apache.org/jira/browse/HIVE-9492    Author: Xuefu Zhang, 2015-01-31, 06:36
Re: Union all with a field 'hard coded' - Hive - [mail # user]
...Use column alias:INSERT OVERWRITE TABLE all_dictionaries_ext     SELECT name, id, category FROM dictionary     UNION ALL SELECT NAME, ID, "CAMPAIGN" as category...
   Author: Xuefu Zhang, 2015-01-30, 22:33
[HIVE-9103] Support backup task for join related optimization [Spark Branch] - Hive - [issue]
...In MR, backup task can be executed if the original task, which probably contains certain (join) optimization fails. This JIRA is to track this topic for Spark. We need to determine if we nee...
http://issues.apache.org/jira/browse/HIVE-9103    Author: Xuefu Zhang, 2015-01-29, 20:33
[HIVE-9468] Test groupby3_map_skew.q fails due to decimal precision difference - Hive - [issue]
...From test run, http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-SPARK-Build/682/testReport: Running: diff -a /home/hiveptest/54.177.132.58-hiveptest-1/apache-svn-...
http://issues.apache.org/jira/browse/HIVE-9468    Author: Xuefu Zhang, 2015-01-28, 23:33
[expand - 1 more] - Re: [ANNOUNCE] New Hive PMC Members - Szehon Ho, Vikram Dixit, Jason Dere, Owen O'Malley and Prasanth Jayachandran - Hive - [mail # dev]
...Congratulations to all!On Wed, Jan 28, 2015 at 1:15 PM, Carl Steinbach  wrote: ...
   Author: Xuefu Zhang, 2015-01-28, 21:20
Re: 0.15 release - Hive - [mail # dev]
...From a different perspective, 0.14.1/0.15 proposal allow us to releaseindependently and concurrently. Once they are leased, we can have aconsented 1.0 release.On the other hand, 1.0/1.1 woul...
   Author: Xuefu Zhang, 2015-01-26, 18:02
Re: how to determine the memory usage of select,join, in hive on spark? - Hive - [mail # user]
...Hi,Since you have only one worker, you should be able to use jmap to get adump of the worker process. In Hive, you can configure the memory usage forjoin.As to the slowness and hive GC you o...
   Author: Xuefu Zhang, 2015-01-24, 15:05
[expand - 2 more] - Re: Created branch 1.0 - Hive - [mail # dev]
...While it's true that a release isn't going to include everything fromtrunk, proposed 1.0 release is branched off 0.14, which was again branchedfrom trunk long time ago. If you compare the co...
   Author: Xuefu Zhang, 2015-01-23, 15:00
[HIVE-9139] Clean up GenSparkProcContext.clonedReduceSinks and related code [Spark Branch] - Hive - [issue]
...While reviewing HIVE-9041, I noticed this field seems not applicable for Spark. It was inherited from Tez. We should remove it and related code to reduce noise in the code if it's not needed...
http://issues.apache.org/jira/browse/HIVE-9139    Author: Xuefu Zhang, 2015-01-22, 05:45
[HIVE-9339] Optimize split grouping for CombineHiveInputFormat [Spark Branch] - Hive - [issue]
...It seems that split generation, especially in terms of grouping inputs, needs to be improved. For this, we may need cluster information. Because of this, we will first try to solve the probl...
http://issues.apache.org/jira/browse/HIVE-9339    Author: Xuefu Zhang, 2015-01-21, 02:04
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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