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Data Migration: Oracle to Oracle
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Started this discussion. Last reply by Ram Jun 11, 2009.

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Ram replied to Ram's discussion 'Data Migration: Oracle to Oracle'

Yes Jason. I did attend the sumit. I came to know about it. Thanks for the information. Regards Ram

Jun 11, 2009

Jason Venner replied to Ram's discussion 'Data Migration: Oracle to Oracle'

Cloudera just announced an opensource package for bulk loading of data from from databases for use by Map Reduce applications. The application is called sqoop, written primarily by aaron kimbal. http://www.cloudera.com/hadoop-sqoop

Jun 11, 2009

Jason Venner replied to Ram's discussion 'Data Migration: Oracle to Oracle'

My small sample of experience using hadoop map tasks to read from a database or to write to a database resulted in the database falling over almost immediately due to excessive loading. On the flip side the db was mysql running on a single 8way…

Jun 9, 2009

Data Migration: Oracle to Oracle

Jason,What is the best practice using Hadoop to migrate data from one Oracle remote database to an Oracle local database assuming wre have dblink to the remote database.I saw examples to read data from a database. But, I feel we should be able to read the data from the remote database, prcosess it in the map and write it down to the local database in the reduce job and this should be done using one map reduce program. Can I have a sample program for this scenario if you have any?Thanks for the…See More

Discussion posted by Ram Jun 8, 2009

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Ram is now a member of Hadoop Professionals Jun 5, 2009

Welcome Them!