[jira] Commented: (PIG-761) ERROR 2086 on simple JOIN
[
https://issues.apache.org/jira/browse/PIG-761?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12794503#action_12794503
]
Pradeep Kamath commented on PIG-761:
+1, Changes look good. I had a question on the following lines:
{code}
108 if (mrOper.isLimitOnly())
109 mrOper = this.mPlan.getPredecessors(mrOper).get(0);
{code}
Will there be a case when the POLocalRearrange may be present in the limit only
MROper?
Will there be a case where the limit only MROper may have 1 predecessors?
If the answer to both of these is no, then the patch is good to commit
otherwise, these condition may need to be handled.
ERROR 2086 on simple JOIN
-
Key: PIG-761
URL: https://issues.apache.org/jira/browse/PIG-761
Project: Pig
Issue Type: Bug
Affects Versions: 0.2.0
Environment: mapreduce mode
Reporter: Vadim Zaliva
Assignee: Daniel Dai
Fix For: 0.6.0
Attachments: PIG-761-1.patch
ERROR 2086: Unexpected problem during optimization. Could not find all
LocalRearrange operators.org.apache.pig.impl.logicalLayer.FrontendException:
ERROR 1002: Unable to store alias 109
doing pretty straightforward join in one of my pig scripts. I am able to
'dump' both relationship involved in this join. when I try to join them I am
getting this error.
Here is a full log:
ERROR 2086: Unexpected problem during optimization. Could not find all
LocalRearrange operators.
org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1002: Unable
to store alias 109
at org.apache.pig.PigServer.registerQuery(PigServer.java:296)
at
org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:529)
at
org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:280)
at
org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:99)
at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:75)
at org.apache.pig.Main.main(Main.java:319)
Caused by: org.apache.pig.backend.executionengine.ExecException: ERROR
2043: Unexpected error during execution.
at
org.apache.pig.backend.hadoop.executionengine.HExecutionEngine.execute(HExecutionEngine.java:274)
at
org.apache.pig.PigServer.executeCompiledLogicalPlan(PigServer.java:700)
at org.apache.pig.PigServer.execute(PigServer.java:691)
at org.apache.pig.PigServer.registerQuery(PigServer.java:292)
... 5 more
Caused by: org.apache.pig.impl.plan.optimizer.OptimizerException:
ERROR 2086: Unexpected problem during optimization. Could not find all
LocalRearrange operators.
at
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.plans.POPackageAnnotator.handlePackage(POPackageAnnotator.java:116)
at
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.plans.POPackageAnnotator.visitMROp(POPackageAnnotator.java:88)
at
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceOper.visit(MapReduceOper.java:194)
at
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceOper.visit(MapReduceOper.java:43)
at
org.apache.pig.impl.plan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:65)
at
org.apache.pig.impl.plan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:67)
at
org.apache.pig.impl.plan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:67)
at
org.apache.pig.impl.plan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:67)
at
org.apache.pig.impl.plan.DepthFirstWalker.walk(DepthFirstWalker.java:50)
at org.apache.pig.impl.plan.PlanVisitor.visit(PlanVisitor.java:51)
at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.
MapReduceLauncher.compile(MapReduceLauncher.java:198)
at
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher.launchPig(MapReduceLauncher.java:80)
at
org.apache.pig.backend.hadoop.executionengine.HExecutionEngine.execute(HExecutionEngine.java:261)
... 8 more
ERROR 1002: Unable to store alias 398
org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1002: Unable
to store alias 398
at org.apache.pig.PigServer.registerQuery(PigServer.java:296)
at
org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:529)
at
org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:280)
at
org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:99)
at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:75)
at org.apache.pig.Main.main(Main.java:319)
Caused by: java.lang.NullPointerException
at
[jira] Commented: (PIG-761) ERROR 2086 on simple JOIN
[ https://issues.apache.org/jira/browse/PIG-761?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12794504#action_12794504 ] Daniel Dai commented on PIG-761: The answer to both is no. There is only one case to insert limit only MROper, It always have the same structure and only have one predecessor, which is the real limit MROper job. ERROR 2086 on simple JOIN - Key: PIG-761 URL: https://issues.apache.org/jira/browse/PIG-761 Project: Pig Issue Type: Bug Affects Versions: 0.2.0 Environment: mapreduce mode Reporter: Vadim Zaliva Assignee: Daniel Dai Fix For: 0.6.0 Attachments: PIG-761-1.patch ERROR 2086: Unexpected problem during optimization. Could not find all LocalRearrange operators.org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1002: Unable to store alias 109 doing pretty straightforward join in one of my pig scripts. I am able to 'dump' both relationship involved in this join. when I try to join them I am getting this error. Here is a full log: ERROR 2086: Unexpected problem during optimization. Could not find all LocalRearrange operators. org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1002: Unable to store alias 109 at org.apache.pig.PigServer.registerQuery(PigServer.java:296) at org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:529) at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:280) at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:99) at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:75) at org.apache.pig.Main.main(Main.java:319) Caused by: org.apache.pig.backend.executionengine.ExecException: ERROR 2043: Unexpected error during execution. at org.apache.pig.backend.hadoop.executionengine.HExecutionEngine.execute(HExecutionEngine.java:274) at org.apache.pig.PigServer.executeCompiledLogicalPlan(PigServer.java:700) at org.apache.pig.PigServer.execute(PigServer.java:691) at org.apache.pig.PigServer.registerQuery(PigServer.java:292) ... 5 more Caused by: org.apache.pig.impl.plan.optimizer.OptimizerException: ERROR 2086: Unexpected problem during optimization. Could not find all LocalRearrange operators. at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.plans.POPackageAnnotator.handlePackage(POPackageAnnotator.java:116) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.plans.POPackageAnnotator.visitMROp(POPackageAnnotator.java:88) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceOper.visit(MapReduceOper.java:194) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceOper.visit(MapReduceOper.java:43) at org.apache.pig.impl.plan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:65) at org.apache.pig.impl.plan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:67) at org.apache.pig.impl.plan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:67) at org.apache.pig.impl.plan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:67) at org.apache.pig.impl.plan.DepthFirstWalker.walk(DepthFirstWalker.java:50) at org.apache.pig.impl.plan.PlanVisitor.visit(PlanVisitor.java:51) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer. MapReduceLauncher.compile(MapReduceLauncher.java:198) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher.launchPig(MapReduceLauncher.java:80) at org.apache.pig.backend.hadoop.executionengine.HExecutionEngine.execute(HExecutionEngine.java:261) ... 8 more ERROR 1002: Unable to store alias 398 org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1002: Unable to store alias 398 at org.apache.pig.PigServer.registerQuery(PigServer.java:296) at org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:529) at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:280) at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:99) at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:75) at org.apache.pig.Main.main(Main.java:319) Caused by: java.lang.NullPointerException at org.apache.pig.backend.hadoop.executionengine.physicalLayer.LogToPhyTranslationVisitor.visit(LogToPhyTranslationVisitor.java:669) at org.apache.pig.impl.logicalLayer.LOCogroup.visit(LOCogroup.java:330) at org.apache.pig.impl.logicalLayer.LOCogroup.visit(LOCogroup.java:41) at org.apache.pig.impl.plan.DependencyOrderWalker.walk(DependencyOrderWalker.java:68) at
[jira] Commented: (PIG-761) ERROR 2086 on simple JOIN
[ https://issues.apache.org/jira/browse/PIG-761?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12794005#action_12794005 ] Ankur commented on PIG-761: --- Here is a very simple script to reproduce the issue:- - Start - data1 = LOAD 'data1' as (a:int, b:int, c:chararray); proj1 = LIMIT data1 5; data2 = LOAD 'data2' as (x:int, y:chararray, z:chararray); proj2 = FOREACH data2 GENERATE x, y; cogrouped = COGROUP proj1 BY a, proj2 BY x INNER PARALLEL 2; joined = FOREACH cogrouped GENERATE FLATTEN(proj1), FLATTEN(proj2); store joined into 'results'; - End The problem seems to be with the LIMIT operator for one of the relations participating in the join. Seems like this causes the mismatch between expected and found local re-arrange operators ERROR 2086 on simple JOIN - Key: PIG-761 URL: https://issues.apache.org/jira/browse/PIG-761 Project: Pig Issue Type: Bug Affects Versions: 0.2.0 Environment: mapreduce mode Reporter: Vadim Zaliva ERROR 2086: Unexpected problem during optimization. Could not find all LocalRearrange operators.org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1002: Unable to store alias 109 doing pretty straightforward join in one of my pig scripts. I am able to 'dump' both relationship involved in this join. when I try to join them I am getting this error. Here is a full log: ERROR 2086: Unexpected problem during optimization. Could not find all LocalRearrange operators. org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1002: Unable to store alias 109 at org.apache.pig.PigServer.registerQuery(PigServer.java:296) at org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:529) at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:280) at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:99) at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:75) at org.apache.pig.Main.main(Main.java:319) Caused by: org.apache.pig.backend.executionengine.ExecException: ERROR 2043: Unexpected error during execution. at org.apache.pig.backend.hadoop.executionengine.HExecutionEngine.execute(HExecutionEngine.java:274) at org.apache.pig.PigServer.executeCompiledLogicalPlan(PigServer.java:700) at org.apache.pig.PigServer.execute(PigServer.java:691) at org.apache.pig.PigServer.registerQuery(PigServer.java:292) ... 5 more Caused by: org.apache.pig.impl.plan.optimizer.OptimizerException: ERROR 2086: Unexpected problem during optimization. Could not find all LocalRearrange operators. at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.plans.POPackageAnnotator.handlePackage(POPackageAnnotator.java:116) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.plans.POPackageAnnotator.visitMROp(POPackageAnnotator.java:88) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceOper.visit(MapReduceOper.java:194) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceOper.visit(MapReduceOper.java:43) at org.apache.pig.impl.plan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:65) at org.apache.pig.impl.plan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:67) at org.apache.pig.impl.plan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:67) at org.apache.pig.impl.plan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:67) at org.apache.pig.impl.plan.DepthFirstWalker.walk(DepthFirstWalker.java:50) at org.apache.pig.impl.plan.PlanVisitor.visit(PlanVisitor.java:51) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer. MapReduceLauncher.compile(MapReduceLauncher.java:198) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher.launchPig(MapReduceLauncher.java:80) at org.apache.pig.backend.hadoop.executionengine.HExecutionEngine.execute(HExecutionEngine.java:261) ... 8 more ERROR 1002: Unable to store alias 398 org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1002: Unable to store alias 398 at org.apache.pig.PigServer.registerQuery(PigServer.java:296) at org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:529) at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:280) at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:99) at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:75) at org.apache.pig.Main.main(Main.java:319) Caused by: java.lang.NullPointerException at
[jira] Commented: (PIG-761) ERROR 2086 on simple JOIN
[ https://issues.apache.org/jira/browse/PIG-761?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12794324#action_12794324 ] Hadoop QA commented on PIG-761: --- +1 overall. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12428861/PIG-761-1.patch against trunk revision 893660. +1 @author. The patch does not contain any @author tags. +1 tests included. The patch appears to include 3 new or modified tests. +1 javadoc. The javadoc tool did not generate any warning messages. +1 javac. The applied patch does not increase the total number of javac compiler warnings. +1 findbugs. The patch does not introduce any new Findbugs warnings. +1 release audit. The applied patch does not increase the total number of release audit warnings. +1 core tests. The patch passed core unit tests. +1 contrib tests. The patch passed contrib unit tests. Test results: http://hudson.zones.apache.org/hudson/job/Pig-Patch-h8.grid.sp2.yahoo.net/157/testReport/ Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Pig-Patch-h8.grid.sp2.yahoo.net/157/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html Console output: http://hudson.zones.apache.org/hudson/job/Pig-Patch-h8.grid.sp2.yahoo.net/157/console This message is automatically generated. ERROR 2086 on simple JOIN - Key: PIG-761 URL: https://issues.apache.org/jira/browse/PIG-761 Project: Pig Issue Type: Bug Affects Versions: 0.2.0 Environment: mapreduce mode Reporter: Vadim Zaliva Assignee: Daniel Dai Fix For: 0.6.0 Attachments: PIG-761-1.patch ERROR 2086: Unexpected problem during optimization. Could not find all LocalRearrange operators.org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1002: Unable to store alias 109 doing pretty straightforward join in one of my pig scripts. I am able to 'dump' both relationship involved in this join. when I try to join them I am getting this error. Here is a full log: ERROR 2086: Unexpected problem during optimization. Could not find all LocalRearrange operators. org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1002: Unable to store alias 109 at org.apache.pig.PigServer.registerQuery(PigServer.java:296) at org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:529) at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:280) at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:99) at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:75) at org.apache.pig.Main.main(Main.java:319) Caused by: org.apache.pig.backend.executionengine.ExecException: ERROR 2043: Unexpected error during execution. at org.apache.pig.backend.hadoop.executionengine.HExecutionEngine.execute(HExecutionEngine.java:274) at org.apache.pig.PigServer.executeCompiledLogicalPlan(PigServer.java:700) at org.apache.pig.PigServer.execute(PigServer.java:691) at org.apache.pig.PigServer.registerQuery(PigServer.java:292) ... 5 more Caused by: org.apache.pig.impl.plan.optimizer.OptimizerException: ERROR 2086: Unexpected problem during optimization. Could not find all LocalRearrange operators. at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.plans.POPackageAnnotator.handlePackage(POPackageAnnotator.java:116) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.plans.POPackageAnnotator.visitMROp(POPackageAnnotator.java:88) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceOper.visit(MapReduceOper.java:194) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceOper.visit(MapReduceOper.java:43) at org.apache.pig.impl.plan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:65) at org.apache.pig.impl.plan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:67) at org.apache.pig.impl.plan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:67) at org.apache.pig.impl.plan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:67) at org.apache.pig.impl.plan.DepthFirstWalker.walk(DepthFirstWalker.java:50) at org.apache.pig.impl.plan.PlanVisitor.visit(PlanVisitor.java:51) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer. MapReduceLauncher.compile(MapReduceLauncher.java:198) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher.launchPig(MapReduceLauncher.java:80) at org.apache.pig.backend.hadoop.executionengine.HExecutionEngine.execute(HExecutionEngine.java:261) ... 8 more ERROR 1002: Unable to store alias 398
[jira] Commented: (PIG-761) ERROR 2086 on simple JOIN
[ https://issues.apache.org/jira/browse/PIG-761?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12697555#action_12697555 ] Olga Natkovich commented on PIG-761: Please, provide a query that is causing this problem. Without reproducible case, this will be hard to diagnose. We don't see this problem in our tests ERROR 2086 on simple JOIN - Key: PIG-761 URL: https://issues.apache.org/jira/browse/PIG-761 Project: Pig Issue Type: Bug Affects Versions: 0.2.0 Environment: mapreduce mode Reporter: Vadim Zaliva ERROR 2086: Unexpected problem during optimization. Could not find all LocalRearrange operators.org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1002: Unable to store alias 109 doing pretty straightforward join in one of my pig scripts. I am able to 'dump' both relationship involved in this join. when I try to join them I am getting this error. Here is a full log: ERROR 2086: Unexpected problem during optimization. Could not find all LocalRearrange operators. org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1002: Unable to store alias 109 at org.apache.pig.PigServer.registerQuery(PigServer.java:296) at org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:529) at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:280) at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:99) at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:75) at org.apache.pig.Main.main(Main.java:319) Caused by: org.apache.pig.backend.executionengine.ExecException: ERROR 2043: Unexpected error during execution. at org.apache.pig.backend.hadoop.executionengine.HExecutionEngine.execute(HExecutionEngine.java:274) at org.apache.pig.PigServer.executeCompiledLogicalPlan(PigServer.java:700) at org.apache.pig.PigServer.execute(PigServer.java:691) at org.apache.pig.PigServer.registerQuery(PigServer.java:292) ... 5 more Caused by: org.apache.pig.impl.plan.optimizer.OptimizerException: ERROR 2086: Unexpected problem during optimization. Could not find all LocalRearrange operators. at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.plans.POPackageAnnotator.handlePackage(POPackageAnnotator.java:116) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.plans.POPackageAnnotator.visitMROp(POPackageAnnotator.java:88) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceOper.visit(MapReduceOper.java:194) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceOper.visit(MapReduceOper.java:43) at org.apache.pig.impl.plan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:65) at org.apache.pig.impl.plan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:67) at org.apache.pig.impl.plan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:67) at org.apache.pig.impl.plan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:67) at org.apache.pig.impl.plan.DepthFirstWalker.walk(DepthFirstWalker.java:50) at org.apache.pig.impl.plan.PlanVisitor.visit(PlanVisitor.java:51) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer. MapReduceLauncher.compile(MapReduceLauncher.java:198) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher.launchPig(MapReduceLauncher.java:80) at org.apache.pig.backend.hadoop.executionengine.HExecutionEngine.execute(HExecutionEngine.java:261) ... 8 more ERROR 1002: Unable to store alias 398 org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1002: Unable to store alias 398 at org.apache.pig.PigServer.registerQuery(PigServer.java:296) at org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:529) at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:280) at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:99) at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:75) at org.apache.pig.Main.main(Main.java:319) Caused by: java.lang.NullPointerException at org.apache.pig.backend.hadoop.executionengine.physicalLayer.LogToPhyTranslationVisitor.visit(LogToPhyTranslationVisitor.java:669) at org.apache.pig.impl.logicalLayer.LOCogroup.visit(LOCogroup.java:330) at org.apache.pig.impl.logicalLayer.LOCogroup.visit(LOCogroup.java:41) at org.apache.pig.impl.plan.DependencyOrderWalker.walk(DependencyOrderWalker.java:68) at org.apache.pig.impl.plan.PlanVisitor.visit(PlanVisitor.java:51) at
