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[HIVE-8930] Vector coalesce operators should push down casts - Hive - [issue]
...set hive.vectorized.execution.enabled=true;create temporary table xx (call_duration string, call_type string) stored as orc;insert into table xx values (null, "X"), ("0", "X"), ("1", "X"), (...
http://issues.apache.org/jira/browse/HIVE-8930    Author: Gopal V, 2014-11-20, 23:09
[HIVE-7144] GC pressure during ORC StringDictionary writes - Hive - [issue]
...When ORC string dictionary writes data out, it suffers from bad GC performance due to a few allocations in-loop.The conversions are as followsStringTreeWriter::getStringValue() causes 2 conv...
http://issues.apache.org/jira/browse/HIVE-7144    Author: Gopal V, 2014-11-13, 19:44
Re: basic, dumb getting started question (single-node) - Hive - [mail # user]
...On 11/12/14, 1:27 PM, Nicholas Murphy wrote:I do a build the first thing every morning with the latest of Tez/Hive & leave perf runs in the night, if all day it didn't give me any errors.So,...
   Author: Gopal V, 2014-11-12, 23:01
[HIVE-7917] Hive max reducers count has regressed from a prime number to 999  (re-apply HIVE-7158) - Hive - [issue]
...HIVE-6037 overwrote configuration changes made by HIVE-7158 for Configuration parameters related to reducer parallelism.The changes need to be reapplied....
http://issues.apache.org/jira/browse/HIVE-7917    Author: Gopal V, 2014-11-11, 00:14
Re: row_number() over(Partition by) Throw Error with Null Input. - Hive - [mail # user]
...On 11/9/14, 10:16 PM, karthik Srivasthava wrote:You haven't posted the entire back trace, so I'm guessing this is the PTF bug that was fixed in hive-14 last monthhttps://issues.apache.org/ji...
   Author: Gopal V, 2014-11-10, 06:49
[HIVE-8785] HiveServer2 LogDivertAppender should be more selective for beeline getLogs - Hive - [issue]
...A simple query run via beeline JDBC like explain select count(1) from testing.foo; produces 50 lines of output which looks like 0: jdbc:hive2://localhost:10002> explain select count(1) fr...
http://issues.apache.org/jira/browse/HIVE-8785    Author: Gopal V, 2014-11-08, 22:40
Re: OOM with Hive on Tez - Hive - [mail # dev]
...On 11/6/14, 11:09 AM, Kostas Tzoumas wrote:Both issues are related to the Tez memory distributor (InitialMemoryAllocator) impl used.http://tez.apache.org/releases/0.5.1/tez-runtime-library-j...
   Author: Gopal V, 2014-11-06, 21:01
[HIVE-8661] JDBC MinimizeJAR should be configurable in pom.xml - Hive - [issue]
...A large amount of dev time is wasted waiting for JDBC to minimize JARs from 33Mb -> 16Mb during developer cycles.This should only kick-in during -Pdist, allowing for disabling this during...
http://issues.apache.org/jira/browse/HIVE-8661    Author: Gopal V, 2014-11-06, 15:51
[HIVE-8632] VectorKeyHashWrapper::duplicateTo allocates too many zero sized arrays - Hive - [issue]
...VectorHashKeyWrapper::duplicateTo() should not make copies of zero sized typed arrays....
http://issues.apache.org/jira/browse/HIVE-8632    Author: Gopal V, 2014-11-01, 03:12
[HIVE-7838] Tez getProgress() should return number of failed attempts - Hive - [issue]
...Tez progress from DAGClient should contain both failed tasks and failed attempts counts.This helps with debugging a slow query due to a bad machine....
http://issues.apache.org/jira/browse/HIVE-7838    Author: Gopal V, 2014-10-31, 18:22
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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