Setting Config Property in OutputFormat.checkOutputSpecs().

[Jane Chen]

I need to save some data in the job config as part of 
OutputFormat.checkOutputSpecs(), and have it propagated to map tasks.  It seems 
that the property is saved correctly when OutputFormat.checkOutputSpecs() is 
run, but it can't be found in the map tasks.  Any idea why that's the case?

Thanks,
Jane