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[expand - 1 more] - Re: ORC Tuning - Examples? - Hive - [mail # user]
...Yin -  Fantastic! That is exactly the type of explanation of settings I'd like to see. More than just what it does, but the tradeoffs, and how things are applied in the real world. &nbs...
   Author: John Omernik, 2013-11-13, 21:44
Suggestion for Metastore Oprerations around ORC Files - Hive - [mail # user]
...I was testing out the conversion of a table to ORC.  Using previous posts, I did alter table tablename set fileformat ORC;  This worked great  All new partitions created were ...
   Author: John Omernik, 2013-11-09, 21:18
[HIVE-5506] Hive SPLIT function does not return array correctly - Hive - [issue]
...Hello all, I think I have outlined a bug in the hive split function:Summary: When calling split on a string of data, it will only return all array items if the the last array item has a valu...
http://issues.apache.org/jira/browse/HIVE-5506    Author: John Omernik, 2013-10-23, 12:44
ORC Files: Does this get me anything? - Hive - [mail # user]
...So I am experimenting with ORC files, and I have a fast little table that has login events.  Out of curiosity, I was wondering if based on what we all knew about ORC files, if did the b...
   Author: John Omernik, 2013-10-16, 22:42
[expand - 1 more] - Re: Bug in Hive Split function (Tested on Hive 0.9 and 0.11) - Hive - [mail # user]
...I opened a JIRA on this: https://issues.apache.org/jira/browse/HIVE-5506     On Wed, Oct 9, 2013 at 9:44 AM, John Omernik  wrote:  ...
   Author: John Omernik, 2013-10-09, 21:21
Re: Hive 0.11.0 | Issue with ORC Tables - Hive - [mail # user]
...Another advantage to the method described by Owen is your process of creating the ORC file is distributed.  (Rather than precreating the ORC file off cluster and then moving into the cl...
   Author: John Omernik, 2013-09-20, 14:59
[expand - 2 more] - Re: Optimizing ORC Sorting - Replace two level Partitions with one? - Hive - [mail # user]
...Are there any effective limits on the number of partitions? Partitions is the answer that we choose because it makes logical sense. I.e. I have Days, on a given day I have a number of source...
   Author: John Omernik, 2013-08-10, 17:35
[expand - 1 more] - Re: RC -> ORC INSERT OVERWRITE metastore Heap Error - Hive - [mail # user]
...I'll just go ahead an answer my own question here. In my hive script I had a ghost "set hive.optimize.ppd=false;"  That, I believe, caused my metastore operations to be far in excess of...
   Author: John Omernik, 2013-08-10, 13:57
[expand - 2 more] - Re: Large Scale Table Reprocess - Hive - [mail # user]
...More specifically, we have a table that is currently defined as RCFile, to do this, I'd like to define all new partitions as ORC.  With the advent of ORC, these types of problems are go...
   Author: John Omernik, 2013-07-26, 22:17
Java Courses for Scripters/Big Data Geeks - Hive - [mail # user]
...Hey all -  I was wondering if there were any "shortcut" Java courses out there.  As in, I am not looking for a holistic learn everything about Java course, but more of a "So you ar...
   Author: John Omernik, 2013-07-17, 19:52
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