[PIG-207] New illustrate command does not work in mapreduce mode.

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.1.0
• Fix Version/s: 0.1.0
• Component/s: impl
• Assignee: Shubham Chopra
• Reporter: Alan Gates
• Created: 17/Apr/08 17:21
• Updated: 24/Mar/10 22:01
• Resolved: 22/Apr/08 22:57

Description

In local mode, illustrate will work. But if exectype is set to mapreduce, then:

grunt> a = load 'data/test.txt';
grunt> b = filter a by $0 eq 'f2';
grunt> illustrate b;
2008-04-16 00:03:06,512 [main] ERROR org.apache.pig.tools.grunt.GruntParser - java.lang.ClassCastException: org.apache.pig.backend.hadoop.executionengine.HExecutionEngine cannot be cast to org.apache.pig.backend.local.executionengine.LocalExecutionEngine
        at org.apache.pig.pen.ExGen.GenerateExamples(ExGen.java:61)
        at org.apache.pig.PigServer.showExamples(PigServer.java:573)
        at org.apache.pig.PigServer.showExamples(PigServer.java:569)
        at org.apache.pig.tools.grunt.GruntParser.processIllustrate(GruntParser.java:131)
        at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:172)
        at org.apache.pig.tools.grunt.GruntParser.parseContOnError(GruntParser.java:72)
        at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:54)
        at org.apache.pig.Main.main(Main.java:272)

dump a and dump b work.