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https://issues.apache.org/jira/browse/PIG-3455?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13763912#comment-13763912
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Bill Graham commented on PIG-3455:
----------------------------------
Thanks [~rohini.u] for kicking this off. Yes, a streaming based hash function
would be a much better approach. No need for backward compatibility. The
signature contract is that it could change between Pig releases.
> Pig 0.11.1 OutOfMemory error
> ----------------------------
>
> Key: PIG-3455
> URL: https://issues.apache.org/jira/browse/PIG-3455
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.11.1
> Reporter: Shubham Chopra
> Priority: Critical
>
> When running Pig on a relatively large script (around 1.5k lines, 85
> assignments), Pig fails with the following error even before any jobs are
> fired:
> Pig Stack Trace
> ---------------
> ERROR 2998: Unhandled internal error. Java heap space
> java.lang.OutOfMemoryError: Java heap space
> at java.util.Arrays.copyOf(Arrays.java:2882)
> at
> java.lang.AbstractStringBuilder.expandCapacity(AbstractStringBuilder.java:100)
> at
> java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:390)
> at java.lang.StringBuilder.append(StringBuilder.java:119)
> at
> org.apache.pig.newplan.logical.optimizer.LogicalPlanPrinter.depthFirstLP(LogicalPlanPrinter.java:83)
> at
> org.apache.pig.newplan.logical.optimizer.LogicalPlanPrinter.visit(LogicalPlanPrinter.java:69)
> at
> org.apache.pig.newplan.logical.relational.LogicalPlan.getSignature(LogicalPlan.java:122)
> at org.apache.pig.PigServer.execute(PigServer.java:1237)
> at org.apache.pig.PigServer.executeBatch(PigServer.java:333)
> at
> org.apache.pig.tools.grunt.GruntParser.executeBatch(GruntParser.java:137)
> at
> org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:198)
> at
> org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:170)
> at org.apache.pig.tools.grunt.Grunt.exec(Grunt.java:84)
> at org.apache.pig.Main.run(Main.java:604)
> at org.apache.pig.Main.main(Main.java:157)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.apache.hadoop.util.RunJar.main(RunJar.java:160)
> The same script works fine with Pig-0.10.1.
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