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Re: Execution of udf - Hive - [mail # user]
...That should be an identity pass through or NOOP that does nothing, but MapReduce requires "something".  On Fri, Jan 18, 2013 at 8:57 AM, nagarjuna kanamarlapudi  wrote:   &nbs...
   Author: Dean Wampler, 2013-01-18, 14:58
Re: Interaction between Java and Transform Scripts on Hive - Hive - [mail # user]
...The transform scripts (or executables) are run as separate processes, so it sounds like Hive itself is blowing up. That would be consistent with your script working fine outside Hive. The Hi...
   Author: Dean Wampler, 2013-01-17, 04:13
Re: Re: create a hive table: always a tab space before each line - Hive - [mail # user]
...Hadoop supports Sequence Files natively. Hadoop the Definitive Guide discusses the details.  dean  On Mon, Jan 14, 2013 at 8:58 AM, Richard  wrote:    *Dean Wampler,...
   Author: Dean Wampler, 2013-01-14, 15:56
Re: Best practice for automating jobs - Hive - [mail # user]
...If you know make and bash, have a look at Stampede for scheduling work:  https://github.com/ThinkBigAnalytics/stampede  (Full disclosure: I wrote it)   On Thu, Jan 10, 2013 at...
   Author: Dean Wampler, 2013-01-10, 22:30
Re: Stack function in Hive : how to specify multiple aliases? - Hive - [mail # user]
...Try "as (alias1, alias2, ...)"  On Thu, Jan 10, 2013 at 3:42 AM, Mathieu Despriee wrote:    *Dean Wampler, Ph.D.* thinkbiganalytics.com +1-312-339-1330...
   Author: Dean Wampler, 2013-01-10, 14:13
Re: Map Reduce Local Task - Hive - [mail # user]
...That setting will make Hive more aggressive about trying to convert a join to a local task, where it bypasses the job tracker. When you're experimenting with queries on a small data set, it ...
   Author: Dean Wampler, 2013-01-08, 15:59
Re: Does Hue (Hadoop User Experience) works with Apache HIVE/HADOOP - Hive - [mail # user]
...If you're willing to consider a commercial option, Karmasphere is already supported on EMR.  http://aws.amazon.com/elasticmapreduce/karmasphere/  On Sat, Dec 29, 2012 at 1:29 AM, C...
   Author: Dean Wampler, 2012-12-29, 15:18
Re: hive regular expression - Hive - [mail # user]
...Hive uses Java's regex API. This tutorial provides an excellent introduction.  http://docs.oracle.com/javase/tutorial/essential/regex/  dean  On Wed, Dec 26, 2012 at 12:46 PM,...
   Author: Dean Wampler, 2012-12-26, 18:50
Re: Reflect MySQL updates into Hive - Hive - [mail # user]
...Looks good, but a few suggestions. If you can eliminate duplicates, etc. as you ingest the data into HDFS, that would eliminate a cleansing step. Note that if the target directory in HDFS IS...
   Author: Dean Wampler, 2012-12-24, 18:12
Re: Creating external table poiting to s3 folder with files not loading data - Hive - [mail # user]
...You raise an important point; "metadata" commands like create table and alter table only affect metadata, not the actual data itself. So, you have to write the files into the partition direc...
   Author: Dean Wampler, 2012-12-17, 15:07
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