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[HIVE-9782] LLAP: InStream creation for every row group is expensive - Hive - [issue]
...Orc column vector producer should not create InStream for every row group it process. It should instead create InStream once and keep updating the buffers....
http://issues.apache.org/jira/browse/HIVE-9782    Author: Prasanth Jayachandran, 2015-02-26, 03:56
Re: [ANNOUNCE] New Hive PMC Member - Sergey Shelukhin - Hive - [mail # dev]
...Congrats Sergey!On Feb 25, 2015, at 1:50 PM, Alexander Pivovarov > wrote:Congrats!On Wed, Feb 25, 2015 at 12:33 PM, Vaibhav Gumashta > wrote:Congrats Sergey!On 2/25/15, 9:06 AM, "Vikra...
   Author: Prasanth Jayachandran, 2015-02-25, 21:57
[HIVE-9643] LLAP: Widen the scope of ORC readers and related classes - Hive - [issue]
...Most of the class in ORC are package private. We need to relax the scope of many of the classes so that it can be accessed from llap module....
http://issues.apache.org/jira/browse/HIVE-9643    Author: Prasanth Jayachandran, 2015-02-24, 02:13
[HIVE-9757] LLAP: Reuse string dictionaries per column per stripe when processing row groups - Hive - [issue]
...Dictionary streams are cached by low level cache. When creating column vectors from streams we create dictionary for every row group that we process. We should add per query cache to cache t...
http://issues.apache.org/jira/browse/HIVE-9757    Author: Prasanth Jayachandran, 2015-02-23, 23:04
[HIVE-9751] LLAP: Fix issue with reading last row group of string column - Hive - [issue]
...There is an issue with reading last row group of string column. This is mostly likely related to improper seeking into one of the streams....
http://issues.apache.org/jira/browse/HIVE-9751    Author: Prasanth Jayachandran, 2015-02-23, 09:52
[HIVE-9747] LLAP: Merge from trunk to llap branch 2/20/2015 - Hive - [issue]
...Rebase llap branch against trunk....
http://issues.apache.org/jira/browse/HIVE-9747    Author: Prasanth Jayachandran, 2015-02-21, 02:41
[HIVE-9742] LLAP: ORC decoding of row groups for complex types - Hive - [issue]
...HIVE-9419 only added support for primitive types. Structs, Union, Maps and Lists are yet to be supported....
http://issues.apache.org/jira/browse/HIVE-9742    Author: Prasanth Jayachandran, 2015-02-20, 23:40
[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, 2015-02-19, 18:22
[HIVE-9051] TezJobMonitor in-place updates logs too often to logfile - Hive - [issue]
...New in-place updates UI logs to hive.log. Logging happens way too often. Old UI logs only if 3 sec timeout expired or if string to be logged changes within 3 sec time interval. New UI should...
http://issues.apache.org/jira/browse/HIVE-9051    Author: Prasanth Jayachandran, 2015-02-19, 14:45
[HIVE-9689] Store distinct value estimator's bit vectors in metastore - Hive - [issue]
...Hive currently uses PCSA (Probabilistic Counting and Stochastic Averaging) algorithm to determine distinct cardinality. The NDV value determined from the UDF is stored in the metastore inste...
http://issues.apache.org/jira/browse/HIVE-9689    Author: Prasanth Jayachandran, 2015-02-19, 00:59
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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