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Re: Hive mapper creation - Hive - [mail # user]
...Hi Mohammed  If it is to control the split size and there by the number of map tasks, you just need to play with min and max split size properties.  Regards Bejoy KS  Sent fro...
   Author: Bejoy KS, 2012-06-28, 19:29
Re: date datatype in hive - Hive - [mail # user]
...Hi Soham  Rewrite your query with the columns in Group By included in Select as well. Something like  select country,name from users_info  group by country;  Regards Bejo...
   Author: Bejoy KS, 2012-06-27, 06:32
Re: querying with datetime in hive and mysql - Hive - [mail # user]
...Hi soham  Since the date is stored as String in hive you can use the date functions to get the hour.   Just check whether the hour falls in between 10 and 11 AM  In simple ter...
   Author: Bejoy KS, 2012-06-25, 08:00
Re: Define field delimiters for output files - Hive - [mail # user]
...Yes, external Tables are no different that managed tables. The main difference  in case of external tables is, if you drop a managed table the data in hdfs is also deleted where as in c...
   Author: Bejoy KS, 2012-06-19, 08:02
Re: sqoop, hive and lzo and cdh3u3 - not creating in index automatically - Hive - [mail # user]
...Hi Chalcy  When you create a table you do specify the format of how the data is stored in hdfs. This value can be determined using , describe extended or describe formatted at any later...
   Author: Bejoy KS, 2012-06-19, 06:59
Re: Quering RDBMS table in a Hive query - Hive - [mail # user]
...Hi Ruslan  The solution Esteban pointed out was 1. Import look up data from RDBMS to hdfs/hive (you can fire any adhoc query here). If the data is just a few mbs one or two maps/connect...
   Author: Bejoy KS, 2012-06-16, 02:04
Re: joining user sessions - Hive - [mail # user]
...Yes, the framework takes care of this.  Regards Bejoy KS  Sent from handheld, please excuse typos.  From: Cam Bazz  Date: Wed, 13 Jun 2012 20:09:12  To: ;  Repl...
   Author: Bejoy KS, 2012-06-13, 17:10
Re: Hive Mapside join with Distributed cache - Hive - [mail # user]
...You just need to enable map joins before executing your join query. hive> Set hive.auto.convert.join=true  Regards Bejoy KS  Sent from handheld, please excuse typos.  From:...
   Author: Bejoy KS, 2012-06-11, 16:03
Re: Error while Creating Table in Hive - Hive - [mail # user]
...Hi Babak  You gotta follow those instructions in the apace site to set up hadoop from scratch and ensure that hdfs is working first. You should be able to read and write files to hdfs b...
   Author: Bejoy KS, 2012-06-05, 19:55
Re: Re[2]: from-insert-select trouble - Hive - [mail # user]
...Great, good catch.. Not enough child heap size available to process your data volume. If you have free memory available just increase child.opts memory and it may pass through as well.  ...
   Author: Bejoy KS, 2012-05-22, 13:07
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