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[HIVE-8876] incorrect upgrade script for Oracle (13->14) - Hive - [issue]
http://issues.apache.org/jira/browse/HIVE-8876    Author: Sergey Shelukhin, 2015-02-19, 18:22
[HIVE-9108] Fix for HIVE-8735 is incorrect (stats with long paths) - Hive - [issue]
...The hashing eliminates the failure, but it seems that stats produced are incorrect...
http://issues.apache.org/jira/browse/HIVE-9108    Author: Sergey Shelukhin, 2015-02-19, 14:45
[HIVE-9660] store end offset of compressed data for RG in RowIndex in ORC - Hive - [issue]
...Right now the end offset is estimated, which in some cases results in tons of extra data being read.We can add a separate array to RowIndex (positions_v2?) that stores number of compressed b...
http://issues.apache.org/jira/browse/HIVE-9660    Author: Sergey Shelukhin, 2015-02-12, 02:23
Re: [ANNOUNCE] New Hive Committers -- Chao Sun, Chengxiang Li, and Rui Li - Hive - [mail # dev]
...Congrats!On 15/2/10, 19:00, "Xu, Cheng A"  wrote: ...
   Author: Sergey Shelukhin, 2015-02-11, 20:35
[HIVE-9640] refactor ORC metadata and index reading out of RecordReaderImpl - Hive - [issue]
...For LLAP and general ease of use of the code...
http://issues.apache.org/jira/browse/HIVE-9640    Author: Sergey Shelukhin, 2015-02-10, 21:07
[HIVE-9603] LLAP: (IO) consider using reactive framework to string together parts of code - Hive - [issue]
...Hand-rolled async consumers-producers are somewhat confusing. Prasanth Jayachandran proposed using RxJava; Observable seems to be a natural fit for data producer and provides built-in error ...
http://issues.apache.org/jira/browse/HIVE-9603    Author: Sergey Shelukhin, 2015-02-10, 19:13
[HIVE-9418] LLAP: ORC production of encoded data, cache usage - Hive - [issue]
...ORC needs to be able to read self-contained rowgroups and return them. It should use low-level cache in process. In future, we may use high-level cache to cache rowgroups instead...
http://issues.apache.org/jira/browse/HIVE-9418    Author: Sergey Shelukhin, 2015-02-10, 01:30
[HIVE-9439] merge ORC disk ranges as we go when reading RGs - Hive - [issue]
...Currently we get ranges for all the RGs individually, then merge them. We can do some (probably most of) the merging as we go....
http://issues.apache.org/jira/browse/HIVE-9439    Author: Sergey Shelukhin, 2015-02-05, 00:03
[HIVE-7616] pre-size mapjoin hashtable based on statistics - Hive - [issue]
http://issues.apache.org/jira/browse/HIVE-7616    Author: Sergey Shelukhin, 2015-01-25, 00:36
[expand - 2 more] - Re: Created branch 1.0 - Hive - [mail # dev]
...I think the way it is done in Hadoop space is better for Hadoop space (andbetter wrt consistency, us being in the Hadoop space).Because no single company or QA process controls or covers all...
   Author: Sergey Shelukhin, 2015-01-24, 02:14
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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