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MapReduce >> mail # user >> Migrating from Legacy to Hadoop.

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Re: Migrating from Legacy to Hadoop.
open source : Pig, Hive, Cascading ...
other : Talend ...

Is that the answer you are expecting or are you looking for something more


On Tue, Oct 8, 2013 at 5:47 PM, Jitendra Yadav

> Hi All,
> We are planning to consolidate our 3 existing warehouse databases to
> Hadoop cluster, In our testing phase we have designed the target
> environment and transferred the data from source to target (not in
> sync but almost completed ). These legacy systems were using
> traditional ETL/replication  mechanism like Golden gate, Loaders,
> PL/SQL language etc., FYI we are using 80%  PL/SQL code and SQL server
> packages in current environment, however we have re-writing some of
> ETL jobs through java and python MR but looking for some more and easy
> alternatives.
> What is best approach we should follow to complete this process? while
> suggesting please take effort and timing in consideration( if
> possible).
> Please guide.
> Regards
> Jitendra