[
https://issues.apache.org/jira/browse/PIG-2533?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Dmitriy V. Ryaboy updated PIG-2533:
-----------------------------------
Resolution: Fixed
Fix Version/s: 0.11
0.10
Status: Resolved (was: Patch Available)
> Pig MR job exceptions masked on frontend
> ----------------------------------------
>
> Key: PIG-2533
> URL: https://issues.apache.org/jira/browse/PIG-2533
> Project: Pig
> Issue Type: Bug
> Reporter: Travis Crawford
> Assignee: Travis Crawford
> Fix For: 0.10, 0.11
>
> Attachments: PIG-2533.patch, PIG-2533.patch
>
>
> Pig MR jobs failures produce misleading error messages because just the first
> line of the error message is reported. Printing the whole error message is
> very useful when debugging issues as the current version is very misleading
> about the source of an issue.
> PRINTING WHOLE ERROR MESSAGE:
> {code}
> 2012-02-14 21:55:53,936 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR
> 6017: java.io.IOException: Deserialization error:
> org.apache.hcatalog.data.schema.HCatSchema
> at
> org.apache.pig.impl.util.ObjectSerializer.deserialize(ObjectSerializer.java:55)
> at org.apache.pig.impl.util.UDFContext.deserialize(UDFContext.java:181)
> at
> org.apache.pig.backend.hadoop.executionengine.util.MapRedUtil.setupUDFContext(MapRedUtil.java:159)
> at
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigOutputFormat.setupUdfEnvAndStores(PigOutputFormat.java:229)
> at
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigOutputFormat.checkOutputSpecs(PigOutputFormat.java:186)
> at
> org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:811)
> at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:771)
> at org.apache.hadoop.mapred.jobcontrol.Job.submit(Job.java:378)
> at
> org.apache.hadoop.mapred.jobcontrol.JobControl.startReadyJobs(JobControl.java:247)
> 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.pig.backend.hadoop.executionengine.mapReduceLayer.PigJobControl.mainLoopAction(PigJobControl.java:144)
> at
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigJobControl.run(PigJobControl.java:121)
> at java.lang.Thread.run(Thread.java:662)
> Caused by: java.lang.ClassNotFoundException:
> org.apache.hcatalog.data.schema.HCatSchema
> at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
> at java.lang.Class.forName0(Native Method)
> at java.lang.Class.forName(Class.java:247)
> at java.io.ObjectInputStream.resolveClass(ObjectInputStream.java:603)
> at
> java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1574)
> at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1495)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1731)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
> at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
> at java.util.Hashtable.readObject(Hashtable.java:859)
> 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
> java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
> at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
> at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
> at java.util.HashMap.readObject(HashMap.java:1030)
> 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
> java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
> at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
> at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
> at
> org.apache.pig.impl.util.ObjectSerializer.deserialize(ObjectSerializer.java:53)
> ... 15 more
> {code}
> CURRENT ERROR MESSAGE:
> {code}
> Pig Stack Trace
> ---------------
> ERROR 6017: java.io.IOException: Deserialization error:
> org.apache.hcatalog.data.schema.HCatSchema
> org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1066: Unable to
> open iterator for alias l
> at org.apache.pig.PigServer.openIterator(PigServer.java:857)
> at
> org.apache.pig.tools.grunt.GruntParser.processDump(GruntParser.java:655)
> at
> org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:303)
> at
> org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:188)
> at
> org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:164)
> at org.apache.pig.tools.grunt.Grunt.exec(Grunt.java:84)
> at org.apache.pig.Main.run(Main.java:561)
> at org.apache.pig.Main.main(Main.java:111)
> 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:156)
> Caused by: org.apache.pig.PigException: ERROR 1002: Unable to store alias l
> at org.apache.pig.PigServer.storeEx(PigServer.java:956)
> at org.apache.pig.PigServer.store(PigServer.java:919)
> at org.apache.pig.PigServer.openIterator(PigServer.java:832)
> ... 12 more
> Caused by: org.apache.pig.backend.executionengine.ExecException: ERROR 6017:
> java.io.IOException: Deserialization error:
> org.apache.hcatalog.data.schema.HCatSchema
> at
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher.launchPig(MapReduceLauncher.java:301)
> at org.apache.pig.PigServer.launchPlan(PigServer.java:1270)
> at
> org.apache.pig.PigServer.executeCompiledLogicalPlan(PigServer.java:1255)
> at org.apache.pig.PigServer.storeEx(PigServer.java:952)
> ... 14 more
> ================================================================================
> {code}
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