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[HIVE-9197] fix lvj_mapjoin.q diff in trunk - Hive - [issue]
...Since lvj_mapjoin.q was disabled when HIVE-9037 was committed, the golden file needs to be updated....
http://issues.apache.org/jira/browse/HIVE-9197    Author: Prasanth Jayachandran, 2014-12-23, 19:22
[HIVE-8888] Mapjoin with LateralViewJoin generates wrong plan in Tez - Hive - [issue]
...Queries like these with sub1 as(select aid, avalue from expod1 lateral view explode(av) avs as avalue ),sub2 as(select bid, bvalue from expod2 lateral view explode(bv) bvs as bvalue)select s...
http://issues.apache.org/jira/browse/HIVE-8888    Author: Prasanth Jayachandran, 2014-12-22, 18:54
[HIVE-9188] BloomFilter in ORC row group index - Hive - [issue]
...BloomFilters are well known probabilistic data structure for set membership checking. We can use bloom filters in ORC index for better row group pruning. Currently, ORC row group index uses ...
http://issues.apache.org/jira/browse/HIVE-9188    Author: Prasanth Jayachandran, 2014-12-22, 05:44
[HIVE-9166] Place an upper bound for SARG CNF conversion - Hive - [issue]
...SARG creation in ORC, applies several optimizations to expression tree. In that CNF conversion is an exponential algorithm as it finds all combinations of expressions when converting from OR...
http://issues.apache.org/jira/browse/HIVE-9166    Author: Prasanth Jayachandran, 2014-12-19, 19:26
Re: Native ORC - Hive - [mail # dev]
...I also feel in the long run it would be good to have ORC as a separate project (ASF) independent of hive. Having it in hive will only make it harder to modularize (SARG, vectorized readers, ...
   Author: Prasanth Jayachandran, 2014-12-17, 20:28
[HIVE-8809] Activate maven profile hadoop-2 by default - Hive - [issue]
...For every maven command profile needs to be specified explicitly. It will be better to activate "hadoop-2" profile by default as HIVE QA uses hadoop-2 profile. With this change both the foll...
http://issues.apache.org/jira/browse/HIVE-8809    Author: Prasanth Jayachandran, 2014-12-17, 09:37
[HIVE-9111] Potential NPE in OrcStruct for list and map types - Hive - [issue]
...Currently getters in OrcStruct class for list and map object inspectors does not have null checks which may throw NPE when UDFs like size() is used on list or map column....
http://issues.apache.org/jira/browse/HIVE-9111    Author: Prasanth Jayachandran, 2014-12-16, 19:08
[HIVE-9067] OrcFileMergeOperator may create merge file that does not match properties of input files - Hive - [issue]
...OrcFileMergeOperator creates a new ORC file and appends the stripes from smaller orc file. This new ORC file creation should retain the same configuration as the small ORC files. Currently i...
http://issues.apache.org/jira/browse/HIVE-9067    Author: Prasanth Jayachandran, 2014-12-15, 23:32
[HIVE-9090] Rename "Tez File Merge Work" to smaller name - Hive - [issue]
...This is just a cosmetic change. The "Tez File Merge Work" vertex name is long that in-place update UI showing vertex name is out of place....
http://issues.apache.org/jira/browse/HIVE-9090    Author: Prasanth Jayachandran, 2014-12-14, 05:30
[expand - 3 more] - Re: Concatenating ORC files - Hive - [mail # user]
...Thanks Daniel for filing the jira and the test case. I have put up a patch in HIVE-9067 jira that should fix this issue. - PrasanthOn Thu, Dec 11, 2014 at 3:29 AM, Daniel Haviv wrote:CO...
   Author: Prasanth Jayachandran, 2014-12-12, 01:46
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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