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Re: Hive Query Issue - Hive - [mail # user]
...when you run select * from table .. it does not launch a mapreduce job,  where are when you put some condition, it does need to process the data so it launches a mapreduce job  now...
   Author: Nitin Pawar, 2013-08-06, 10:54
[expand - 2 more] - Re: Error Accessing Mysql metastore - Hive - [mail # user]
...Yes. Please add these two to hive-site.xml  stop your application start hive metastore service make sure hive is working on cli start thirft service start your application make sure you...
   Author: Nitin Pawar, 2013-08-05, 07:23
[expand - 1 more] - Re: Hive Metastore Server 0.9 Connection Reset and Connection Timeout errors - Hive - [mail # user]
...The mentioned flow is called when you have unsecure mode of thrift metastore client-server connection. So one way to avoid this is have a secure way.   public boolean process(final TPro...
   Author: Nitin Pawar, 2013-07-30, 07:49
Re: Best Performance on Large Scale Join - Hive - [mail # user]
...Brad, whats the cluster capacity you have got? how many uniq values of a,b  and c  you have got individually in any of the one table?   Is there any chance you can partition d...
   Author: Nitin Pawar, 2013-07-29, 17:59
Re: HCatalog (from Hive 0.11) and Hadoop 2 - Hive - [mail # dev]
...There is a build scheduled on jenkins for hive trunk which is failing. I will give it a try on my local for hive-011, there is another build which does the ptests which is disabled due to lo...
   Author: Nitin Pawar, 2013-07-29, 15:25
Re: Merging different HDFS file for HIVE - Hive - [mail # user]
...Option 1 ) Use pig or oozie, write a workflow and join the files to a single file Option 2 ) Create a temp table for each of the different file and then join them to a single table and delet...
   Author: Nitin Pawar, 2013-07-26, 12:30
Re: GenericUDFRank UDF is not working as expected - Hive - [mail # user]
...try rank(columntoberanked, columntobegrouped)  in your case rank (userid, city)   On Wed, Jul 24, 2013 at 3:47 AM, Shahar Glixman wrote:     Nitin Pawar...
   Author: Nitin Pawar, 2013-07-24, 06:36
Re: Calling same UDF multiple times in a SELECT query - Hive - [mail # user]
...fucntion return values are not stored for repeat use of same (as per my understanding)  I know you may have already thought about other approach as  select a , if (call  wrote...
   Author: Nitin Pawar, 2013-07-23, 19:25
Re: hive query is very slow,why? - Hive - [mail # user]
...Huang, the number of records are huge and we do not know what your table definition is or what your cluster capacity is?  there are multiple reasons that query is slow Can you share all...
   Author: Nitin Pawar, 2013-07-19, 09:07
Re: can partition and bucket used on external table? - Hive - [mail # user]
...Why not?  Try and let us know as well :)   On Fri, Jul 19, 2013 at 7:54 AM, ch huang  wrote:      Nitin Pawar...
   Author: Nitin Pawar, 2013-07-19, 08:17
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