We are working on developing Pig on Tez Local mode. It previous works.
However, after we upmerge to latest pig. We got following errors:
2014-07-18 15:49:20,189 [TezChild] INFO
org.apache.pig.backend.hadoop.executionengine.tez.PigProcessor - Starting
output org.apache.tez.runtime.library.output.OnFileSortedOutput@39930e3d to
vertex scope-92
2014-07-18 15:49:20,189 [TezChild] ERROR
org.apache.pig.backend.hadoop.executionengine.tez.PigProcessor -
Encountered exception while processing:
java.lang.NullPointerException
at
org.apache.tez.runtime.library.common.ConfigUtils.getIntermediateOutputKeyComparator(ConfigUtils.java:125)
at
org.apache.tez.runtime.library.common.sort.impl.ExternalSorter.<init>(ExternalSorter.java:148)
at
org.apache.tez.runtime.library.common.sort.impl.dflt.DefaultSorter.<init>(DefaultSorter.java:116)
at
org.apache.tez.runtime.library.output.OnFileSortedOutput.start(OnFileSortedOutput.java:101)
at
org.apache.pig.backend.hadoop.executionengine.tez.PigProcessor.initializeOutputs(PigProcessor.java:299)
at
org.apache.pig.backend.hadoop.executionengine.tez.PigProcessor.run(PigProcessor.java:185)
at
org.apache.tez.runtime.LogicalIOProcessorRuntimeTask.run(LogicalIOProcessorRuntimeTask.java:309)
at
org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable$1.run(TezTaskRunner.java:180)
at
org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable$1.run(TezTaskRunner.java:172)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1491)
at
org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable.call(TezTaskRunner.java:172)
at
org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable.call(TezTaskRunner.java:167)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
Any reply will be appreciated!
Regards!
Chen
