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[expand - 1 more] - Re: What are all the factors that go into the number of mappers - ORC - Hive - [mail # user]
...No the size is closer to 10GB, the difference between the tables is onlyaround 2000 bytes.  I will try to get exact numbers for you soon, I amtraveling right now, but I'll get you bette...
   Author: John Omernik, 2014-02-04, 01:16
Survey: What do you use to interface with Hive? - Hive - [mail # user]
...This can be an interesting subject, I know orgs that are all over on this questions. I'd be interested in hearing what you use, how it works for you, and what you are wishing you had in your...
   Author: John Omernik, 2013-12-04, 17:31
[expand - 1 more] - Re: Table creation for logfile data - Hive - [mail # user]
...I wouldn't worry about efficiency to much:  concat('20', split(date_field, '\\/')[2], '-', split(date_field, '\\/')[1], '-', split(date_field, '\\/')[0]) as proper_date -- YYYY-MM-DD &n...
   Author: John Omernik, 2013-11-25, 00:51
Is this a Bug in from_utc_timestamp? - Hive - [mail # user]
...There are some discussions on this https://issues.apache.org/jira/browse/HIVE-3822  However, one person is stating there is not an issue with timestamp, thus I am asking this question: ...
   Author: John Omernik, 2013-11-19, 18:14
[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
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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