Datatype of map.values

[nae...@ic.ufal.br]

How can I get the datatype of map.values or anyother variable inside a maper or reducer?

[Saptarshi Guha]

Could you elaborate?

On Mon, May 18, 2015 at 2:08 AM, <nae...@ic.ufal.br> wrote:

How can I get the datatype of map.values or anyother variable inside a maper or reducer?

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[nae...@ic.ufal.br]

Hey. Thanks for your reply.

It's actualy a debuging question.

I want to do something like typeof(map.values) to get on screen the datatype of map.values. Is there any way to do it?
I guess it's a pretty basic question. Btw, I'm new to Rhipe. Thanks;

[Saptarshi Guha]

That is tricky because the output will be distributed.

If you'd like to see type of map.values, rhread the input file e.g.

lapply(rhread(file, max=10),"[[",2)) if it's a sequence file

or rhead(file, max=10, type='text') for a text file.

If you just do print(map.values) in the map phase you'll need to go to the job web ui and see the output(stdout logs)

HTH

[nae...@ic.ufal.br]

Once again, thanks. :D