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[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, 02:48
[TEZ-1851] BYTES_READ counter does not differentiate between local vs HDFS - Tez - [issue]
...I checked hadoop counters after running a hive query on tez. The logs show two counters for BYTES_READ but does not differentiate between them. Here is the log line for counters2014-12-12 15...
http://issues.apache.org/jira/browse/TEZ-1851    Author: Prasanth Jayachandran, 2014-12-18, 19:48
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
[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, 2014-12-10, 00:21
[HIVE-9049] Metastore should use TCompactProtocol as opposed to TBinaryProtocol - Hive - [issue]
...Hive metastore server/client uses TBinaryProtocol. Although binary protocol is better than simple text/json protocol it is not as effective as TCompactProtocol. TCompactProtocol is typically...
http://issues.apache.org/jira/browse/HIVE-9049    Author: Prasanth Jayachandran, 2014-12-10, 00:02
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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