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[HIVE-6391] Use pre-warm APIs in Tez to improve hive query startup - Hive - [issue]
...With the addition of TEZ-766, Tez supports pre-warmed containers within the Tez session.Allow hive users to enable and use this feature from within the hive shell....
http://issues.apache.org/jira/browse/HIVE-6391    Author: Gopal V, 2014-04-23, 08:17
[HIVE-6787] ORC+ACID assumes all missing buckets are in ACID structure - Hive - [issue]
...ORC+ACID creates ACID structure splits for all missing buckets in a tablejava.lang.RuntimeException: java.io.IOException: java.io.IOException: Vectorization and ACID tables are incompatible....
http://issues.apache.org/jira/browse/HIVE-6787    Author: Gopal V, 2014-04-08, 16:12
[HIVE-6662] Vector Join operations with DATE columns fail - Hive - [issue]
...Trying to generate a DATE column as part of a JOIN's output throws an exceptionCaused by: org.apache.hadoop.hive.ql.metadata.HiveException: Incompatible Long vector column and primitive cate...
http://issues.apache.org/jira/browse/HIVE-6662    Author: Gopal V, 2014-03-29, 05:32
[HIVE-6748] FileSinkOperator needs to cleanup held references for container reuse - Hive - [issue]
...The current implementation of FileSinkOperator runs into trouble when reusing the same query pipeline aggressively with container reuse.This is due to a prevFSP writer which is left referenc...
http://issues.apache.org/jira/browse/HIVE-6748    Author: Gopal V, 2014-03-28, 05:52
[HIVE-6751] maxtaskfailures.per.node is set to too low a threshold - Hive - [issue]
...The node blacklisting results in a task retry system which can consume cluster resources excessively with queries which will eventually fail.For a large stage query, on a 20 node cluster, wi...
http://issues.apache.org/jira/browse/HIVE-6751    Author: Gopal V, 2014-03-26, 02:00
[HIVE-4051] Hive's metastore suffers from 1+N queries when querying partitions & is slow - Hive - [issue]
...Hive's query client takes a long time to initialize & start planning queries because of delays in creating all the MTable/MPartition objects.For a hive db with 1800 partitions, the metas...
http://issues.apache.org/jira/browse/HIVE-4051    Author: Gopal V, 2014-03-25, 07:28
[HIVE-6369] ORC Writer (int RLE v2) fails with ArrayIndexOutOfBounds - Hive - [issue]
...The ORC writer for store_sales TPC-DS table fails with 2014-01-30 09:23:07,819 WARN [main] org.apache.hadoop.mapred.YarnChild: Exception running child : java.lang.ArrayIndexOutOfBoundsExcept...
http://issues.apache.org/jira/browse/HIVE-6369    Author: Gopal V, 2014-03-22, 06:31
[HIVE-6518] Add a GC canary to the VectorGroupByOperator to flush whenever a GC is triggered - Hive - [issue]
...The current VectorGroupByOperator implementation flushes the in-memory hashes when the maximum entries or fraction of memory is hit.This works for most cases, but there are some corner cases...
http://issues.apache.org/jira/browse/HIVE-6518    Author: Gopal V, 2014-03-17, 18:41
[HIVE-6654] SimpleFetchOptimizer ignores views - Hive - [issue]
...SimpleFetchOptimizer optimizes "select * from session_orc limit 1;"But when an alias view is created like "create view session as select * from session_orc";The simple fetch optimizer fails ...
http://issues.apache.org/jira/browse/HIVE-6654    Author: Gopal V, 2014-03-15, 14:40
Re: Timeline for the Hive 0.13 release? - Hive - [mail # dev]
...Can I add HIVE-6518 as well to the merge queue onhttps://cwiki.apache.org/confluence/display/Hive/Hive+0.13+release+statusIt is a relatively simple OOM safety patch to vectorized group-by.Te...
   Author: Gopal V, 2014-03-10, 22:55
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