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[expand - 1 more] - Re: Error : PigUnit in Windows->Eclipse (without Hadoop/Pig in Windows) - Pig - [mail # user]
...Hi Suraj,Thanks for replying.\tmp\hadoop-krkrishnamoorthy\mapred\staging\krkrishnamoorthy502928296\.stagingseems to refer to a path in the unix filesystem. I dont have c:\temp.it is trying t...
   Author: Krishnan K, 2014-07-13, 16:42
Reading SequenceFile - Pig - [mail # user]
...Hi I'm trying to load a sequence file compressed with GZipCodec from HDFSinto Pig USING org.apache.pig.piggybank.storage.SequenceFileLoader() fromthe piggybank-0.12.jar file.*The file format...
   Author: Krishnan K, 2014-05-26, 00:34
Re: move hive tables from one cluster to another cluster - Hive - [mail # user]
...1. you can use distcp to copy the files to the new cluster2. rebuild metadataOn Thu, Feb 27, 2014 at 8:07 PM, soniya B  wrote: ...
   Author: Krishnan K, 2014-02-28, 03:56
Re: hive query to calculate percentage - Hive - [mail # user]
...Modfiy the query to :select totalcount / sum(totalcount) from daily_count_per_kg_domain wheretimestamp_dt = '20140219' group by timestamp_dt;if you dont specify the where clause, you will ge...
   Author: Krishnan K, 2014-02-26, 00:28
Re: Programmatic (java) Sqoop import from MySQL to HBase Could not find hadoop core jar - Sqoop - [mail # user]
...Can you try adding the jar to HADOOP_CLASSPATH / CLASSPATH ?   On Sun, Oct 27, 2013 at 7:34 PM, Amit Sela  wrote:  ...
   Author: Krishnan K, 2013-10-27, 15:15
ArrayIndexOutOfBoundsException while writing MapReduce output as RCFile - Hive - [mail # user]
...Hi All,  I have a scenario where I've to read an RCFile, process it and write the output as an RCFile using a MapReduce program. My Hadoop version is *CDH 4.2.1 *  * * *Mapper* Map...
   Author: Krishnan K, 2013-10-21, 18:38
Re: Hive Query Questions - is null in WHERE - Hive - [mail # user]
...For string columns, null will be interpreted as an empty string and for others, it will be interpreted as null...  On Wednesday, October 16, 2013, Raj Hadoop wrote:  ...
   Author: Krishnan K, 2013-10-17, 14:41
[expand - 1 more] - Re: Loading a Hive table simultaneously from 2 different sources - Hive - [mail # user]
...Hi Edward, All,  Thanks for the quick reply!  We are using dynamic partitions - so unable to say to which partition each record goes. We dont have much control here.  Is there...
   Author: Krishnan K, 2013-01-24, 15:33
[expand - 1 more] - Re: Incremental import fail to hive from PostgreSQL - Sqoop - [mail # user]
...Hi Roshan,  Yes, because the sqoop first pulls the data into HDFS before pushing it into the hive table. "FileAlreadyExistsException" occurs at the HDFS level and not at the hive-end. &...
   Author: Krishnan K, 2012-04-16, 03:49
Sqoop operations through a Java API client program? - Sqoop - [mail # user]
...Hi All,  I'm new to Sqoop.  I understand that there are command-line options for importing/exporting data between RDBMS and HDFS.  I could  successfully import data from ...
   Author: Krishnan K, 2011-07-24, 06:01
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