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[HIVE-7330] Create SparkTask - Hive - [issue]
...SparkTask handles the execution of SparkWork. It will execute a graph of map and reduce work using a SparkClient instance....
http://issues.apache.org/jira/browse/HIVE-7330    Author: Xuefu Zhang, 2014-07-31, 09:43
[HIVE-7526] Research to use groupby transformation to replace Hive existing partitionByKey and SparkCollector combination - Hive - [issue]
...Currently SparkClient shuffles data by calling paritionByKey(). This transformation outputs <key, value> tuples. However, Hive's ExecMapper expects <key, iterator<value>> t...
http://issues.apache.org/jira/browse/HIVE-7526    Author: Xuefu Zhang, 2014-07-31, 09:24
[HIVE-7438] Counters, statistics, and metrics - Hive - [issue]
...Hive makes use of MapReduce counters for statistics and possibly for other purposes. For Hive on Spark, we should achieve the same functionality using Spark's accumulators.Hive also collects...
http://issues.apache.org/jira/browse/HIVE-7438    Author: Xuefu Zhang, 2014-07-31, 07:27
[HIVE-7292] Hive on Spark - Hive - [issue]
...Spark as an open-source data analytics cluster computing framework has gained significant momentum recently. Many Hive users already have Spark installed as their computing backbone. To take...
http://issues.apache.org/jira/browse/HIVE-7292    Author: Xuefu Zhang, 2014-07-31, 05:04
[HIVE-7564] Remove some redundant code plus a bit of cleanup in SparkClient [Spark Branch] - Hive - [issue]
...NO PRECOMMIT TESTS. This is for spark branch only....
http://issues.apache.org/jira/browse/HIVE-7564    Author: Xuefu Zhang, 2014-07-31, 02:02
[HIVE-7503] Support Hive's multi-table insert query with Spark - Hive - [issue]
...For Hive's multi insert query (https://cwiki.apache.org/confluence/display/Hive/LanguageManual+DML), there may be an MR job for each insert.  When we achieve this with Spark, it would b...
http://issues.apache.org/jira/browse/HIVE-7503    Author: Xuefu Zhang, 2014-07-30, 23:20
[HIVE-7556] Fix code style, license header, tabs, etc. [Spark Branch] - Hive - [issue]
...NO PRECOMMIT TESTS. This is for spark branch only....
http://issues.apache.org/jira/browse/HIVE-7556    Author: Xuefu Zhang, 2014-07-30, 20:23
[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
[HIVE-7541] Support union all on Spark - Hive - [issue]
...For union all operator, we will use Spark's union transformation. Refer to the design doc on wiki for more information....
http://issues.apache.org/jira/browse/HIVE-7541    Author: Xuefu Zhang, 2014-07-30, 07:01
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