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[expand - 1 more] - Re: Running Hive on multi node - Hive - [mail # user]
...Hi Hamad  Fully distributed is a proper cluster where all demons are not on the same machine.   You can have hadoop installed in three modes - Stand Alone - Pseudo Distributed (all...
   Author: bejoy_ks@..., 2013-02-21, 11:10
Re: bucketing on a column with millions of unique IDs - Hive - [mail # user]
...Hi Li  The major consideration you should give is regarding the size of bucket. One bucket corresponds to a file in hdfs and you should ensure that every bucket is atleast a block size ...
   Author: bejoy_ks@..., 2013-02-21, 01:44
Re: CREATE EXTERNAL TABLE Fails on Some Directories - Hive - [mail # user]
...Hi Joseph  There are differences in the following ls commands  cloudera@localhost data]$ hdfs dfs -ls /715  This would list out all the contents in /715 in hdfs, if it is a di...
   Author: bejoy_ks@..., 2013-02-15, 17:05
Re: Map join optimization issue - Hive - [mail # user]
...Hi   In later versions of hive you actually don't need a map joint hint in your query. Just the following would suffice the purpose  Set┬áhive.auto.convert.join=true   Regards ...
   Author: bejoy_ks@..., 2013-02-15, 16:57
Re: LOAD HDFS into Hive - Hive - [mail # user]
...Hi Venkataraman  You can just create an external table and give it location as the hdfs dir where the data resides.  No need to perform an explicit LOAD operation here.   Rega...
   Author: bejoy_ks@..., 2013-01-25, 13:07
[expand - 1 more] - Re: An explanation of LEFT OUTER JOIN and NULL values - Hive - [mail # user]
...Hi David,  The default partitioner used in map reduce is the hash partitioner. So based on your keys they are send to a particular reducer.  May be in your current data set, the ke...
   Author: bejoy_ks@..., 2013-01-24, 19:39
[expand - 1 more] - Re: Mapping HBase table in Hive - Hive - [mail # user]
...Hi Ibrahim.   SQOOP is used to import data from rdbms to hbase in your case.   Please get the schema from hbase for your corresponding table and post it here.  We can point ou...
   Author: bejoy_ks@..., 2013-01-13, 09:23
Re: View with map join fails - Hive - [mail # user]
...Looks like there is a bug with mapjoin + view. Please check hive jira to see if there an issue open against this else  file a new jira.  From my understanding, When you enable map ...
   Author: bejoy_ks@..., 2013-01-08, 18:41
Re: Map Reduce Local Task - Hive - [mail # user]
...Hi Santhosh  As long as the smaller table size is in the range of a few MBs. It is a good candidate for map join.  If the smaller table size is still more then you can take a look ...
   Author: bejoy_ks@..., 2013-01-08, 18:24
[expand - 1 more] - Re: External table with partitions - Hive - [mail # user]
...Sorry, I din understand your query on first look through.  Like Jagat said, you may need to go with a temp table for this.  Do a hadoop fs -cp ../../a.*   Create a external ta...
   Author: bejoy_ks@..., 2013-01-06, 14:47
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