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[HIVE-7552] Collect spark job statistic through spark metrics[Spark Branch] - Hive - [issue]
...MR/Tez use counters to collect job statistic information, while Spark does not use accumulator to do the same thing. Instead, Spark store task metrics information in TaskMetrics and send it ...
http://issues.apache.org/jira/browse/HIVE-7552    Author: Chengxiang Li, 2014-07-30, 10:55
[HIVE-7328] Refactoring: make Hive reduce side data processing reusable - Hive - [issue]
...ExecReducer is Hive's reducer implementation for MapReduce. Table rows are shuffled by MR framework to ExecReducer and further processed by ExecReducer.reduce() method, which invokes Hive's ...
http://issues.apache.org/jira/browse/HIVE-7328    Author: Xuefu Zhang, 2014-07-30, 10:51
[HIVE-7327] Refactoring: make Hive map side data processing reusable - Hive - [issue]
...ExecMapper is Hive's mapper implementation for MapReduce. Table rows are read by MR framework and processed by ExecMapper.map() method, which invokes Hive's map-side operator tree starting f...
http://issues.apache.org/jira/browse/HIVE-7327    Author: Xuefu Zhang, 2014-07-30, 10:49
about collect_set and ordering - Hive - [mail # user]
...Hi all,I just wanted to point out a little gotcha we got while using thecollect_set UDF :You should not perform directly a GROUP BY over a collect_set(...), becausetheset is cast as an array...
   Author: Furcy Pin, 2014-07-30, 09:44
[HIVE-7544] Changes related to TEZ-1288 (FastTezSerialization) - Hive - [issue]
...Add ability to make use of TezBytesWritableSerialization....
http://issues.apache.org/jira/browse/HIVE-7544    Author: Rajesh Balamohan, 2014-07-30, 09:11
[HIVE-7553] avoid the scheduling maintenance window for every jar change - Hive - [issue]
...When user needs to refresh existing or add a new jar to HS2, it needs to restart it. As HS2 is service exposed to clients, this requires scheduling maintenance window for every jar change. I...
http://issues.apache.org/jira/browse/HIVE-7553    Author: Ferdinand Xu, 2014-07-30, 07:48
[HIVE-7497] Fix some default values in HiveConf - Hive - [issue]
...HIVE-5160 resolves an env variable at runtime via calling System.getenv(). As long as the variable is not defined when you run the build null is returned and the path is not placed in the hi...
http://issues.apache.org/jira/browse/HIVE-7497    Author: Brock Noland, 2014-07-30, 07:19
[HIVE-1960] Database feature should be documented - Hive - [issue]
...The database feature introduced by HIVE-675 should be documented somewhere....
http://issues.apache.org/jira/browse/HIVE-1960    Author: Lars Francke, 2014-07-30, 06:11
[HIVE-675] Add Database/Schema support to Hive QL - Hive - [issue]
...Currently all Hive tables reside in single namespace (default). Hive should support multiple namespaces (databases or schemas) such that users can create tables in their specific namespaces....
http://issues.apache.org/jira/browse/HIVE-675    Author: Prasad Chakka, 2014-07-30, 06:04
[HIVE-6601] alter database commands should support schema synonym keyword - Hive - [issue]
...It should be possible to use "alter schema"  as an alternative to "alter database".  But the syntax is not currently supported.alter schema db1 set owner user x;  NoViableAltE...
http://issues.apache.org/jira/browse/HIVE-6601    Author: Thejas M Nair, 2014-07-30, 06:04
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