You should be able to pass any parameter value to the called script. However to think that you are passing a relation from callee to called Script is not right.
AFAIK, it should work in disributed mode too, unless there's a bug in pig :-) -...@nkur On 2/11/10 8:32 PM, "prasenjit mukherjee" <pmukher...@quattrowireless.com> wrote: Thanks Ankur, this comes closest to what I was looking for. Have some questions though : *) Can you pass relation_names to the calling script. e.g. SPLIT r1 INTO split1 IF ( r1.a>5) ELSE split2 IF ( r1.a<=5) exec --param relation1=split1 relation2=split2 caller_script.pig *) Does it work properly in distributed mode or there are some exceptions I need to worry about. -Prasen On Thu, Feb 11, 2010 at 3:19 PM, Ankur C. Goel <gan...@yahoo-inc.com> wrote: > I tried this in local mode, it works - > http://hadoop.apache.org/pig/docs/r0.5.0/piglatin_reference.html#exec > > $ cat s1.pig > > a = LOAD 'student' AS (name, age, gpa); > b = ORDER a BY age; > DUMP b; > > $ cat s.pig > > a = LOAD 'student' AS (name, age, gpa); > b = LIMIT a 3; > DUMP b; > exec s1.pig > > > $ pig -x local s.pig > I can't find HOD configuration for cluster, hopefully you weren't planning on > using HOD. > 2010-02-11 09:47:45,708 [main] INFO org.apache.pig.Main - Logging error > messages to: /homes/gankur/pig_1265881665706.log > 2010-02-11 09:47:46,506 [main] WARN org.apache.pig.impl.io.FileLocalizer - > FileLocalizer.create: failed to create /tmp/temp-1460326964 > 2010-02-11 09:47:46,545 [main] INFO > org.apache.pig.backend.local.executionengine.LocalPigLauncher - Successfully > stored result in: "file:/tmp/temp-1460326964/tmp-1949967585" > 2010-02-11 09:47:46,546 [main] INFO > org.apache.pig.backend.local.executionengine.LocalPigLauncher - Records > written : 3 > 2010-02-11 09:47:46,546 [main] INFO > org.apache.pig.backend.local.executionengine.LocalPigLauncher - Bytes written > : 101 > 2010-02-11 09:47:46,546 [main] INFO > org.apache.pig.backend.local.executionengine.LocalPigLauncher - 100% complete! > 2010-02-11 09:47:46,546 [main] INFO > org.apache.pig.backend.local.executionengine.LocalPigLauncher - Success!! > (alice,20,2.47) > (luke,18,4.00) > (holly,24,3.27) > 2010-02-11 09:47:46,625 [main] WARN org.apache.pig.impl.io.FileLocalizer - > FileLocalizer.create: failed to create /tmp/temp-1460326964 > 2010-02-11 09:47:46,652 [main] INFO > org.apache.pig.backend.local.executionengine.LocalPigLauncher - Successfully > stored result in: "file:/tmp/temp-1460326964/tmp1891452502" > 2010-02-11 09:47:46,652 [main] INFO > org.apache.pig.backend.local.executionengine.LocalPigLauncher - Records > written : 3 > 2010-02-11 09:47:46,652 [main] INFO > org.apache.pig.backend.local.executionengine.LocalPigLauncher - Bytes written > : 101 > 2010-02-11 09:47:46,652 [main] INFO > org.apache.pig.backend.local.executionengine.LocalPigLauncher - 100% complete! > 2010-02-11 09:47:46,653 [main] INFO > org.apache.pig.backend.local.executionengine.LocalPigLauncher - Success!! > (luke,18,4.00) > (alice,20,2.47) > (holly,24,3.27) > > -...@nkur > > On 2/10/10 10:38 AM, "Alan Gates" <ga...@yahoo-inc.com> wrote: > > You are not wrong. This is a feature we'd like to add but haven't > gotten to yet. > > Alan. > > On Feb 9, 2010, at 8:12 PM, prasenjit mukherjee wrote: > >> May be I was not clear enough on my problem. I would like to call >> another pig-script from a pig-script. How can I do that. >> >> As far as I understand, you can call a pig script from a unix-shell ( >> or windows ) passing those parameters, but not from another pig-script >> ? I would be glad to be proved wrong. I wish I am wrong :) >> >> On Wed, Feb 10, 2010 at 8:36 AM, zaki rahaman >> <zaki.raha...@gmail.com> wrote: >>> Hi Prasen, >>> >>> If the only thing changing is the input and/or output, you can >>> parametrize >>> your script so that you can easily re-use your script with parameter >>> substitution. >>> >>> On Tue, Feb 9, 2010 at 9:49 PM, prasenjit mukherjee < >>> pmukher...@quattrowireless.com> wrote: >>> >>>> Is there a way to reuse a pig scripts ( like def:: in python or >>>> function calls etc) from inside a calling pig script. I have a >>>> set of >>>> basic pig script which I would like to call from a high-level >>>> pig-script. Currently I have to copy/paste exact same set of code >>>> with >>>> different input relation. This makes the code unnecessary bulky >>>> and is >>>> error prone. Even a macro def will be a great help. >>>> >>>> -Thanks, >>>> Prasen >>>> >>> >>> >>> >>> -- >>> Zaki Rahaman >>> > > >
