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Posted to mapreduce-user@hadoop.apache.org by Jane Chen <jx...@yahoo.com> on 2011/01/22 00:57:23 UTC

Initialization for record writing.

Hi,

Looking at 0.21's API,

In org.apache.hadoop.mapreduce.RecordReader, there is an initialize() method that I can use for one time work;

In org.apache.hadoop.mapreduce.RecordWriter, there is no initialize().

Why is that?  Where am I supposed to do the one time initialization?  In the constructor?  Why the asymmetry?

Thanks,
Jane