That's what I was trying first, but then I tried defining it too. -----Original Message----- From: Ankit Bhatnagar [mailto:ank...@yahoo-inc.com] Sent: Wednesday, December 04, 2013 11:15 AM To: user@pig.apache.org; Watrous, Daniel Subject: Re: Trouble with REGEX in PIG
R u planning to use org.apache.pig.builtin.REGEX_EXTRACT ? On 12/4/13 9:28 AM, "Watrous, Daniel" <daniel.t.watr...@hp.com> wrote: >Hi, > >I'm trying to use regular expressions in PIG, but it's failing. Based >on the documentation >http://pig.apache.org/docs/r0.12.0/func.html#regex-extract I am trying >this: > >[watrous@c0003913 ~]$ pig -x local >which: no hadoop in >(/opt/krb5/sbin/64:/usr/lib64/qt-3.3/bin:/usr/local/bin:/bin:/usr/bin:/ >usr >/local/sbin:/usr/sbin:/sbin:/usr/X11R6/bin:/sbin:/usr/sbin:/usr/bin:/op >t/p >b/bin:/opt/perf/bin:/bin:/usr/local/bin:/home/watrous/bin:/home/watrous >/pi >g-0.12.0/bin) >2013-12-04 17:15:15,398 [main] INFO org.apache.pig.Main - Apache Pig >version 0.12.0 (r1529718) compiled Oct 07 2013, 12:20:14 >2013-12-04 17:15:15,398 [main] INFO org.apache.pig.Main - Logging >error messages to: /home/watrous/pig_1386177315394.log >2013-12-04 17:15:15,425 [main] INFO org.apache.pig.impl.util.Utils - >Default bootup file /home/watrous/.pigbootup not found >2013-12-04 17:15:15,599 [main] INFO >org.apache.pig.backend.hadoop.executionengine.HExecutionEngine - >Connecting to hadoop file system at: file:/// >grunt> REGEX_EXTRACT('192.168.1.5:8020', '(.*):(.*)', 1); >2013-12-04 17:16:59,753 [main] ERROR org.apache.pig.tools.grunt.Grunt - >ERROR 1200: <line 1> Cannot expand macro 'REGEX_EXTRACT'. Reason: Macro >must be defined before expansion. >Details at logfile: /home/watrous/pig_1386177315394.log > >Here's the relevant bit from the log file: >Pig Stack Trace >--------------- >ERROR 1200: <line 1> Cannot expand macro 'REGEX_EXTRACT'. Reason: Macro >must be defined before expansion. > >Failed to parse: <line 1> Cannot expand macro 'REGEX_EXTRACT'. Reason: >Macro must be defined before expansion. > at org.apache.pig.parser.PigMacro.macroInline(PigMacro.java:455) > at >org.apache.pig.parser.QueryParserDriver.inlineMacro(QueryParserDriver.j >ava >:298) > at >org.apache.pig.parser.QueryParserDriver.expandMacro(QueryParserDriver.j >ava >:287) > at >org.apache.pig.parser.QueryParserDriver.parse(QueryParserDriver.java:180) > at >org.apache.pig.PigServer$Graph.validateQuery(PigServer.java:1648) > at >org.apache.pig.PigServer$Graph.registerQuery(PigServer.java:1621) > at org.apache.pig.PigServer.registerQuery(PigServer.java:575) > at >org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:1093) > at >org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptPa >rse >r.java:501) > at >org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.jav >a:1 >98) > at >org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.jav >a:1 >73) > at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:69) > at org.apache.pig.Main.run(Main.java:541) > at org.apache.pig.Main.main(Main.java:156) > >I attempted to define the macro (following this tutorial >http://aws.amazon.com/articles/2729). However, piggybank.jar doesn't >define org.apache.pig.piggybank.evaluation.string.EXTRACT, so I located >the most likely file in the current version of the jar. > >grunt> register >/home/watrous/pig-0.12.0/contrib/piggybank/java/piggybank.jar >grunt> DEFINE REGEX_EXTRACT >org.apache.pig.piggybank.evaluation.string.RegexExtract; >grunt> REGEX_EXTRACT('192.168.1.5:8020', '(.*):(.*)', 1); >2013-12-04 17:23:20,383 [main] ERROR org.apache.pig.tools.grunt.Grunt - >ERROR 1200: <line 3> Cannot expand macro 'REGEX_EXTRACT'. Reason: Macro >must be defined before expansion. >Details at logfile: /home/watrous/pig_1386177315394.log > >I get the same stack trace with the only change being a reference to ><line 3> instead of <line 1>. > >Any idea how I can get this working? > >Daniel
