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Re: select list for dynamic partition insert - Hive - [mail # user]
...From the error msg it looks like there are too many distinct values in partition column. Try increasing the count hive.exec.max.dynamic.partitions.pernode to a number >100. If you already...
   Author: Prasanth Jayachandran, 2014-07-22, 20:13
Re: hive 13: dynamic partition inserts - Hive - [mail # dev]
...Hi VishnuYes. There is change in the way dynamic partitions are inserted in hive 13. The new dynamic partitioning is highly scalable and uses very less memory. Here is the related JIRA  ...
   Author: Prasanth Jayachandran, 2014-07-22, 18:28
Re: ORC with bloom filters - Hive - [mail # user]
...ORC does not have bloom filters yet.ThanksPrasanth JayachandranOn Jul 17, 2014, at 10:23 PM, Suma Shivaprasad  wrote:CONFIDENTIALITY NOTICENOTICE: This message is intended for the use o...
   Author: Prasanth Jayachandran, 2014-07-18, 05:36
[expand - 1 more] - Re: custom table/column statistics - Hive - [mail # user]
...Hi AlexHere is the JIRA that tracks column group statistics https://issues.apache.org/jira/browse/HIVE-6540Computing count distinct accurately demands lots of memory esp. in cases where ther...
   Author: Prasanth Jayachandran, 2014-06-10, 05:25
Re: [VOTE] Apache Hive 0.13.1 Release Candidate 1 - Hive - [mail # dev]
...Hi Sushanthhttps://issues.apache.org/jira/browse/HIVE-7067This bug is critical as it returns wrong results for min(), max(), join queries that uses date/timestamp columns from ORC table.The ...
   Author: Prasanth Jayachandran, 2014-05-17, 04:27
Re: Query Using Stats - Hive - [mail # user]
...Bryan,The flag you are looking for is hive.compute.query.using.stats. By default this optimization is disabled. You might need to enable it to use it. Also the min/max/sum metadata are not l...
   Author: Prasanth Jayachandran, 2014-05-17, 00:19
Re: ORC file in Hive 0.13 throws Java heap space error - Hive - [mail # user]
...With Hive 0.13 the ORC memory issue is mitigated because of this optimization https://issues.apache.org/jira/browse/HIVE-6455. This optimization is enabled by default.But having 3283 columns...
   Author: Prasanth Jayachandran, 2014-05-16, 21:39
[expand - 1 more] - Re: showing column stats - Hive - [mail # dev]
...Create the JIRAshttps://issues.apache.org/jira/browse/HIVE-7050https://issues.apache.org/jira/browse/HIVE-7051ThanksPrasanth JayachandranOn May 12, 2014, at 6:52 PM, Prasanth Jayachandran &n...
   Author: Prasanth Jayachandran, 2014-05-14, 10:16
[expand - 3 more] - Re: Skewed Tables - Hive - [mail # user]
...Lefty, I have updated the hive wiki in few places to say we should use "stored as directories" for list bucketing features. There are two different optimizations that uses "SKEWED BY” keywor...
   Author: Prasanth Jayachandran, 2014-04-28, 21:01
[expand - 1 more] - Re: Hive 0.12 ORC Heap Issues on Write - Hive - [mail # user]
...Glad that presentation was useful to you :)hive.exec.orc.memory.pool is the fraction of memory that ORC writers are allowed to use. If your heap size is 1GB and if the hive.exec.orc.memory.p...
   Author: Prasanth Jayachandran, 2014-04-28, 18:25
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