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[HIVE-1035] limit can be optimized if the limit is happening on the reducer - Hive - [issue]
...A query like:select ... from A join B..  limit 10;where the limit is performed on the reducer can be further optimized.Currently, all the operators on the reduce side will be done, but ...
http://issues.apache.org/jira/browse/HIVE-1035    Author: Namit Jain, 2013-02-15, 06:25
[HIVE-201] fetch task appears as a root task in explain plan - Hive - [issue]
...fetch task appears as a root task in explain plan. that should be changed so that fetch task depends on the execution task appropriately...
http://issues.apache.org/jira/browse/HIVE-201    Author: Namit Jain, 2013-02-15, 06:24
[HIVE-4006] Add local sort operator - Hive - [issue]
...We've seen in the past that sorting data on a specific column can greatly improve the compression of data.  The problem is that sorting data is expensive and requires a reduce phase.One...
http://issues.apache.org/jira/browse/HIVE-4006    Author: Namit Jain, 2013-02-11, 11:54
Re: [VOTE] Graduate HCatalog from the incubator and become part of Hive - Hive - [mail # dev]
...+1   On 2/5/13 2:54 PM, "Alexander Alten-Lorenz"  wrote:  ...
   Author: Namit Jain, 2013-02-07, 04:06
[HIVE-3988] lateral view followed by mapjoin should not be allowed - Hive - [issue]
...Consider the following queries:drop table lazy_array_map;create table lazy_array_map (map_col map<int,string>, array_col array <string> );INSERT OVERWRITE TABLE lazy_array_map se...
http://issues.apache.org/jira/browse/HIVE-3988    Author: Namit Jain, 2013-02-05, 08:33
Re: branch for ptf and windowing fuction - Hive - [mail # dev]
...+1   On 2/2/13 11:01 AM, "Clark Yang (杨卓荦)"  wrote:  ...
   Author: Namit Jain, 2013-02-03, 17:41
[HIVE-768] add configuration parameters to disable counters - Hive - [issue]
...All counters are enabled by default right now, which can have a performance hit - it would be good to enable them selectively....
http://issues.apache.org/jira/browse/HIVE-768    Author: Namit Jain, 2013-01-31, 09:34
Re: [VOTE] Amend Hive Bylaws + Add HCatalog Submodule - Hive - [mail # user]
...+1 and +1  On 1/30/13 6:53 AM, "Gunther Hagleitner"  wrote:  ...
   Author: Namit Jain, 2013-01-31, 08:14
[expand - 1 more] - Re: reduced unit test timings - Hive - [mail # dev]
...I run tests on a parallel cluster (8 machines). For that, the test time has gone down from 2:15hours to approx. 1:15   On 1/31/13 11:55 AM, "Ashutosh Chauhan"  wrote:  ...
   Author: Namit Jain, 2013-01-31, 06:27
[HIVE-933] Infer bucketing/sorting properties - Hive - [issue]
...This is a long-term plan, and may require major changes.From the query, we can figure out the sorting/bucketing properties, and change the metadata of the destination at that time.However, t...
http://issues.apache.org/jira/browse/HIVE-933    Author: Namit Jain, 2013-01-30, 18:25
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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