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Posted to dev@pig.apache.org by "Haitao Yao (JIRA)" <ji...@apache.org> on 2012/07/19 10:27:35 UTC
[jira] [Commented] (PIG-2827) TOP exception bug
[ https://issues.apache.org/jira/browse/PIG-2827?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13418164#comment-13418164 ]
Haitao Yao commented on PIG-2827:
---------------------------------
the modified stacktrace should be like this:
java.lang.RuntimeException: General Exception executing function:
at org.apache.pig.builtin.TOP.exec(TOP.java:133)
at org.apache.pig.builtin.TOP.exec(TOP.java:1)
at org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.POUserFunc.getNext(POUserFunc.java:216)
at org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.POUserFunc.getNext(POUserFunc.java:258)
at org.apache.pig.backend.hadoop.executionengine.physicalLayer.PhysicalOperator.getNext(PhysicalOperator.java:316)
at org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POForEach.processPlan(POForEach.java:332)
at org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POForEach.getNext(POForEach.java:284)
at org.apache.pig.backend.hadoop.executionengine.physicalLayer.PhysicalOperator.processInput(PhysicalOperator.java:290)
at org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POLimit.getNext(POLimit.java:85)
at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapReduce$Reduce.runPipeline(PigGenericMapReduce.java:460)
at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapReduce$Reduce.processOnePackageOutput(PigGenericMapReduce.java:428)
at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapReduce$Reduce.reduce(PigGenericMapReduce.java:408)
at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapReduce$Reduce.reduce(PigGenericMapReduce.java:1)
at org.apache.hadoop.mapreduce.Reducer.run(Reducer.java:176)
at org.apache.hadoop.mapred.ReduceTask.runNewReducer(ReduceTask.java:650)
at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:418)
at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1131)
at org.apache.hadoop.mapred.Child.main(Child.java:249)
Caused by: java.lang.NullPointerException
at org.apache.pig.data.DataType.compare(DataType.java:427)
at org.apache.pig.builtin.TOP$TupleComparator.compare(TOP.java:97)
at org.apache.pig.builtin.TOP$TupleComparator.compare(TOP.java:1)
at java.util.PriorityQueue.siftUpUsingComparator(PriorityQueue.java:649)
at java.util.PriorityQueue.siftUp(PriorityQueue.java:627)
at java.util.PriorityQueue.offer(PriorityQueue.java:329)
at java.util.PriorityQueue.add(PriorityQueue.java:306)
at org.apache.pig.builtin.TOP.updateTop(TOP.java:141)
at org.apache.pig.builtin.TOP.exec(TOP.java:116)
... 20 more
> TOP exception bug
> -----------------
>
> Key: PIG-2827
> URL: https://issues.apache.org/jira/browse/PIG-2827
> Project: Pig
> Issue Type: Bug
> Reporter: Haitao Yao
> Attachments: TOP.patch
>
>
> the current exception will swallow the inner exception's stacktrace like this:
> java.lang.RuntimeException: General Exception executing function: java.lang.NullPointerException
> at org.apache.pig.builtin.TOP.exec(TOP.java:133)
> at org.apache.pig.builtin.TOP.exec(TOP.java:1)
> at org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.POUserFunc.getNext(POUserFunc.java:216)
> at org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.POUserFunc.getNext(POUserFunc.java:258)
> at org.apache.pig.backend.hadoop.executionengine.physicalLayer.PhysicalOperator.getNext(PhysicalOperator.java:316)
> at org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POForEach.processPlan(POForEach.java:332)
> at org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POForEach.getNext(POForEach.java:284)
> at org.apache.pig.backend.hadoop.executionengine.physicalLayer.PhysicalOperator.processInput(PhysicalOperator.java:290)
> at org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POForEach.getNext(POForEach.java:233)
> at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapReduce$Reduce.runPipeline(PigGenericMapReduce.java:460)
> at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapReduce$Reduce.processOnePackageOutput(PigGenericMapReduce.java:428)
> at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapReduce$Reduce.reduce(PigGenericMapReduce.java:408)
> at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapReduce$Reduce.reduce(PigGenericMapReduce.java:1)
> at org.apache.hadoop.mapreduce.Reducer.run(Reducer.java:176)
> at org.apache.hadoop.mapred.ReduceTask.runNewReducer(ReduceTask.java:650)
> at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:418)
> at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:415)
> at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1131)
> at org.apache.hadoop.mapred.Child.main(Child.java:249)
> we can not locate the real errors.
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