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[HIVE-12209] Vectorized simple CASE expressions with nulls - Hive - [issue]
...CASE when (d_day_name='Sunday') then ss_sales_price else null end2015-10-18T03:28:37,911 INFO  [main]: physical.Vectorizer (Vectorizer.java:validateExprNodeDesc(1360)) - Failed to vecto...
http://issues.apache.org/jira/browse/HIVE-12209    Author: Gopal V, 2015-11-03, 03:43
[HIVE-12302] Use KryoPool instead of thread-local caching - Hive - [issue]
...Kryo 3.x introduces a Pooling mechanism for Kryohttps://github.com/EsotericSoftware/kryo#pooling-kryo-instances// Build pool with SoftReferences enabled (optional)KryoPool pool = new KryoPoo...
http://issues.apache.org/jira/browse/HIVE-12302    Author: Gopal V, 2015-10-30, 06:46
[HIVE-11306] Add a bloom-1 filter for Hybrid MapJoin spills - Hive - [issue]
...HIVE-9277 implemented Spillable joins for Tez, which suffers from a corner-case performance issue when joining wide small tables against a narrow big table (like a user info table join event...
http://issues.apache.org/jira/browse/HIVE-11306    Author: Gopal V, 2015-10-29, 03:12
[HIVE-12227] LLAP: better column vector object pools - Hive - [issue]
...Vector allocations become a problem in sub-second cases. The pool of 8 per request is too small. Needs to be bigger and potentially pre-populated if we can do it off the main path....
http://issues.apache.org/jira/browse/HIVE-12227    Author: Gopal V, 2015-10-27, 12:10
[HIVE-11287] Hive Metastore does not tolerate leading spaces in JDBC url - Hive - [issue]
...The hive metastore is configured with <property>    <name>       javax.jdo.option.ConnectionURL    </name>    <val...
http://issues.apache.org/jira/browse/HIVE-11287    Author: Gopal V, 2015-10-26, 03:34
[HIVE-12236] LLAP: Prevent metadata queries from thrashing LLAP cache - Hive - [issue]
...Currently, metadata queries fired by BI tools tend to thrash LLAP's cache.Bypass the cache and process metadata queries directly from HiveServer2...
http://issues.apache.org/jira/browse/HIVE-12236    Author: Gopal V, 2015-10-23, 00:22
[HIVE-10807] Invalidate basic stats for insert queries if autogather=false - Hive - [issue]
...if stats.autogather=false leads to incorrect basic stats in case of insert statements....
http://issues.apache.org/jira/browse/HIVE-10807    Author: Gopal V, 2015-10-18, 04:02
[HIVE-12198] LLAP: reader failures when querying uncompressed data - Hive - [issue]
...hive> select sum(l_extendedprice * l_discount) as revenue from testing.lineitem where l_shipdate >= '1993-01-01' and l_shipdate < '1994-01-01' ;Caused by: java.lang.ClassCastExcepti...
http://issues.apache.org/jira/browse/HIVE-12198    Author: Gopal V, 2015-10-16, 20:18
[HIVE-12166] LLAP: Cache read error at 1000 Gb scale tests - Hive - [issue]
...hive> select sum(l_extendedprice * l_discount) as revenue from tpch_flat_orc_1000.lineitem  ;Caused by: java.lang.ArrayIndexOutOfBoundsException: -1        at jav...
http://issues.apache.org/jira/browse/HIVE-12166    Author: Gopal V, 2015-10-14, 19:14
[HIVE-12086] ORC: Buffered float readers to remove vtable thunks - Hive - [issue]
...ORC float tree reader spends an inordinate amount of time, doing vtable thunks through InputStream interface.The actual operation is not faster with this patch, but the interface lookup goes...
http://issues.apache.org/jira/browse/HIVE-12086    Author: Gopal V, 2015-10-14, 06:51
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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