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Hive on Spark - Apache Hive - Apache Software Foundation - Hive - [wiki]
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https://cwiki.apache.org/confluence/display/Hive/Hive+on+Spark    Author: Xuefu Zhang, 2014-08-22, 00:00
[HIVE-7373] Hive should not remove trailing zeros for decimal numbers - Hive - [issue]
...Currently Hive blindly removes trailing zeros of a decimal input number as sort of standardization. This is questionable in theory and problematic in practice.1. In decimal context,  nu...
http://issues.apache.org/jira/browse/HIVE-7373    Author: Xuefu Zhang, 2014-08-21, 22:11
[HIVE-7334] Create SparkShuffler, shuffling data between map-side data processing and reduce-side processing [Spark Branch] - Hive - [issue]
...Please refer to the design spec....
http://issues.apache.org/jira/browse/HIVE-7334    Author: Xuefu Zhang, 2014-08-19, 04:28
[HIVE-7528] Support cluster by and distributed by [Spark Branch] - Hive - [issue]
...clustered by = distributed by + sort by, so this is related to HIVE-7527. If sort by is in place, the assumption is that we don't need to do anything about distributed by or clustered by. St...
http://issues.apache.org/jira/browse/HIVE-7528    Author: Xuefu Zhang, 2014-08-19, 04:10
[HIVE-7527] Support order by and sort by on Spark [Spark Branch] - Hive - [issue]
...Currently Hive depends completely on MapReduce's sorting as part of shuffling to achieve order by (global sort, one reducer) and sort by (local sort).Spark has a sort by transformation in di...
http://issues.apache.org/jira/browse/HIVE-7527    Author: Xuefu Zhang, 2014-08-19, 02:42
[HIVE-7530] Go thru the common code to find references to HIVE_EXECUCTION_ENGINE to make sure conditions works with Spark [Spark Branch] - Hive - [issue]
...In common code, such as Utilities.java, I found a lot of references to this conf variable and special handling to a specific engine such as following:          ...
http://issues.apache.org/jira/browse/HIVE-7530    Author: Xuefu Zhang, 2014-08-19, 01:21
[HIVE-7516] Add capacity control over queries running on Spark cluster [Spark Branch] - Hive - [issue]
...Add a capacity control mechanism in Hive to limit the number queries running on Spark concurrently which might overwhelm the cluster. Idea can be borrowed from Tez....
http://issues.apache.org/jira/browse/HIVE-7516    Author: Xuefu Zhang, 2014-08-18, 21:27
[HIVE-7541] Support union all on Spark [Spark Branch] - 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, 2014-08-18, 18:36
[HIVE-7329] Create SparkWork [Spark Branch] - Hive - [issue]
...This class encapsulates all the work objects that can be executed in a single Spark job.NO PRECOMMIT TESTS. This is for spark branch only....
http://issues.apache.org/jira/browse/HIVE-7329    Author: Xuefu Zhang, 2014-08-18, 17:55
[HIVE-7328] Refactoring: make Hive reduce side data processing reusable [Spark Branch] - 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, 2014-08-18, 17:55
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