Re: Automatically REGISTER jars

[Alan Gates]

Putting the jars on your classpath works as long as the classes you  
need are directly referenced in your script.  So:

B = foreach A generate com.mycompany.myudf($0);

If myudf is in a jar somewhere in your classpath then it will be  
picked up.  If myudf depends on the class myudfsupport which is also  
in a jar on your classpath, myudfsupport will not be picked up.  It  
must be explicitly registered.

Alan.

On Feb 5, 2010, at 11:36 AM, Zaki Rahaman wrote:

I've never tried this but putting te jars on your pig classpath  
should save you from having to register as I believe pig looks here  
for jars by default

Sent from my iPhone

On Feb 5, 2010, at 1:58 PM, Chris Riccomini  
<criccom...@linkedin.com> wrote:

What I want to do is register the jar WITHOUT register. That is,  
when I
issue my pig commandline call to start pig, it will register it at  
that
point rather than in my pig script.

This will save our users from all having to register 3 or 4 jars  
that they
always will need to use pig effectively on our Hadoop cluster.

Thanks,
Chris


On 2/5/10 10:46 AM, "Ashutosh Chauhan" <ashutosh.chau...@gmail.com>  
wrote:

'register' is your friend here

http://hadoop.apache.org/pig/docs/r0.5.0/piglatin_reference.html#REGISTER

Ashutosh

On Thu, Feb 4, 2010 at 23:25, Chris Riccomini <criccom...@linkedin.com 
> wrote:
Hi All,

We have a use-case where we want to automatically register  
certain jars for
command-line users. I tried using –jar, but this switch seems to do
absolutely nothing.

How do we go about auto-registering jars using pig? Any help is  
much
appreciated.

Thanks in advance!
Chris