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Re: Compression of Intermediate Data - Hive - [mail # user]
...Hi Hadi  The propertis you specified doen't enable compression of map output. To enable map output compression you need to enable the following properties  SET hive.exec.compress.o...
   Author: Bejoy KS, 2012-10-06, 15:32
Re: hive query fail - Hive - [mail # user]
...Hi Ajit  Oracle as a metastore has popped up a few issues for us in the past. The most widely used metastore db is MySql which is pretty good.    Regards Bejoy KS  Sent f...
   Author: Bejoy KS, 2012-10-04, 06:37
Re: org.apache.hadoop.ipc.RemoteException(java.io.IOException: java.io.IOException - Hive - [mail # user]
...Hi Raihan  The propery 'mapred.jobtracker.maxtasks.per.job' is a JobTra cker level one and not a task level one. Hence you cannot override it at ta sk level. You need to make modificati...
   Author: Bejoy KS, 2012-10-04, 03:23
Re: File Path and Partition names - Hive - [mail # user]
...Hi Carla  If you like to have your custom directory structure for your  partitions. You can create dirs in hdfs of your choice , load data into them (If from another hive table the...
   Author: Bejoy KS, 2012-10-02, 12:54
Re: hive permissions issue on a database - Hive - [mail # user]
...Hi Rahul  Hive currently have this limitation. You can have permissions on hdfs but not on the metastore. So as a result any user can drop any table in hive. I have seen such discussion...
   Author: Bejoy KS, 2012-10-02, 03:01
[expand - 1 more] - Re: Performance: hive+hbase integration query against the row_key - Hive - [mail # user]
...Hi Ashok,  AFAIK, there is no property that will get you this functiona lity on the fly.   Regards, Bejoy KS   ___________________ _____________  From: "[EMAIL PROTECTED]" &nb...
   Author: Bejoy KS, 2012-09-12, 21:33
[expand - 1 more] - Re: most efficient way to concatenate 3 tables into one? - Hive - [mail # user]
...Hi  Just follow the steps 1) Create an external table with location as /user/aggregatedTable 2) Move the contents of 3 monthly tables to this location Hadoop fs -cp /user/monthlyTable1/...
   Author: Bejoy KS, 2012-09-12, 20:23
Re: How to update and delete a row in hive - Hive - [mail # user]
...Hi Rams  Adding on to Chuck's comments. In hive you can get a work arou nd for updates and deletes only by overwriting a table or atleast a partiti on if table is partitioned. If update...
   Author: Bejoy KS, 2012-09-11, 15:23
Re: Where does hive store join query results - Hive - [mail # user]
...Hi Rajesh  If you like to store the results of some hive query in a d irectory you need to use query like  INSERT OVERWRITE [LOCAL] DIRECTO RY 'fs location' '  'https://cwiki....
   Author: Bejoy KS, 2012-09-10, 05:13
Re: hive table missing - Hive - [mail # user]
...Hi Sam  Hive table details are on he metastore db and would be gone only if that entry is deleted. That is on a drop command normally.  Hive table will be there even if there is no...
   Author: Bejoy KS, 2012-09-09, 11:11
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB