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[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, 2014-12-11, 16:03
[HIVE-7382] Create a MiniSparkCluster and set up a testing framework [Spark Branch] - Hive - [issue]
...To automatically test Hive functionality over Spark execution engine, we need to create a test framework that can execute Hive queries with Spark as the backend. For that, we should create a...
http://issues.apache.org/jira/browse/HIVE-7382    Author: Xuefu Zhang, 2014-12-11, 15:53
[HIVE-9045] Choosing right preference between map join and bucket map join [Spark Branch] - Hive - [issue]
...Currently We convert a join to bucket map join only after it's converted to map join. Supposedly, however, bucket map join has a smaller memory print, so a join which doesn't fit to map join...
http://issues.apache.org/jira/browse/HIVE-9045    Author: Xuefu Zhang, 2014-12-09, 00:11
[HIVE-9044] Union input to a join operator poses problem when converting to map join [Spark Branch] - Hive - [issue]
...Followup for HIVE-8908. When a join operator has a union input on the big table side, we are not able to convert it to map join. The problem seems to be a result of the way we handle union i...
http://issues.apache.org/jira/browse/HIVE-9044    Author: Xuefu Zhang, 2014-12-08, 23:40
[HIVE-8992] Fix bucket related test failure: parquet_join.q [Spark Branch] - Hive - [issue]
...Failures shown in HIVE-8836. The seemed related to wrong reducer numbers in terms of bucket join....
http://issues.apache.org/jira/browse/HIVE-8992    Author: Xuefu Zhang, 2014-12-05, 18:27
[HIVE-7438] Counters, statistics, and metrics [Spark Branch] - 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, 2014-12-05, 14:39
[HIVE-8783] Create some tests that use Spark counter for stats collection [Spark Branch] - Hive - [issue]
...Currently when .q tests are run with Spark, the default stats collection is "fs". We need to have some tests that use Spark counter for stats collection to enhance coverage....
http://issues.apache.org/jira/browse/HIVE-8783    Author: Xuefu Zhang, 2014-12-05, 14:31
[expand - 1 more] - Re: SVN server hanging - Hive - [mail # dev]
...FYI: I logged an INFRA JIRA:https://issues.apache.org/jira/browse/INFRA-8782Thanks,XuefuOn Wed, Dec 3, 2014 at 7:04 AM, Xuefu Zhang  wrote: ...
   Author: Xuefu Zhang, 2014-12-04, 13:37
[expand - 4 more] - Re: Job aborted due to stage failure - Hive - [mail # user]
...Hi Yuemeng,I'm glad that Hive on Spark finally works for you. As you know, thisproject is still in development and yet to be released. Thus, pleaseforgive about the lack of proper documentat...
   Author: Xuefu Zhang, 2014-12-04, 06:06
Re: Apache Hive 1.0 ? - Hive - [mail # dev]
...Major release means more functionality, while minor releases providesstability. Therefore, I'd think, 1.0, as a major release, should bring insomething new to the user. If it's desirable to ...
   Author: Xuefu Zhang, 2014-12-03, 04:06
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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