Praveen Rachabattuni created PIG-4189:
-----------------------------------------
Summary: Make cross join work in Spark
Key: PIG-4189
URL: https://issues.apache.org/jira/browse/PIG-4189
Project: Pig
Issue Type: New Feature
Components: spark
Reporter: Praveen Rachabattuni
Related e2e tests: Cross_1 - Cross_5
Sample script:
a = load '/user/pig/tests/data/singlefile/studenttab10k' as (name, age, gpa);
b = load '/user/pig/tests/data/singlefile/votertab10k' as (name, age,
registration, contributions);
c = filter a by age < 19 and gpa < 1.0;
d = filter b by age < 19;
e = cross c, d;
store e into '/user/pig/out/praveenr-1411378727-nightly.conf/Cross_1.out';
Log:
[Executor task launch worker-1] ERROR org.apache.spark.executor.Executor -
Exception in task ID 2
java.lang.RuntimeException:
org.apache.pig.backend.executionengine.ExecException: ERROR 2078: Caught error
from UDF: org.apache.pig.impl.builtin.GFCross [Unable to get parallelism hint
from job conf]
at
org.apache.pig.backend.hadoop.executionengine.spark.converter.POOutputConsumerIterator.readNext(POOutputConsumerIterator.java:57)
at
org.apache.pig.backend.hadoop.executionengine.spark.converter.POOutputConsumerIterator.hasNext(POOutputConsumerIterator.java:63)
at
scala.collection.convert.Wrappers$JIteratorWrapper.hasNext(Wrappers.scala:41)
at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:327)
at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:327)
at scala.collection.Iterator$class.foreach(Iterator.scala:727)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1157)
at
org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:161)
at
org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:102)
at org.apache.spark.scheduler.Task.run(Task.scala:53)
at
org.apache.spark.executor.Executor$TaskRunner$$anonfun$run$1.apply$mcV$sp(Executor.scala:213)
at
org.apache.spark.deploy.SparkHadoopUtil.runAsUser(SparkHadoopUtil.scala:49)
at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:178)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
Caused by: org.apache.pig.backend.executionengine.ExecException: ERROR 2078:
Caught error from UDF: org.apache.pig.impl.builtin.GFCross [Unable to get
parallelism hint from job conf]
at
org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.POUserFunc.getNext(POUserFunc.java:372)
at
org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.POUserFunc.getNextDataBag(POUserFunc.java:388)
at
org.apache.pig.backend.hadoop.executionengine.physicalLayer.PhysicalOperator.getNext(PhysicalOperator.java:331)
at
org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POForEach.processPlan(POForEach.java:378)
at
org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POForEach.getNextTuple(POForEach.java:298)
at
org.apache.pig.backend.hadoop.executionengine.spark.converter.ForEachConverter$ForEachFunction$1.getNextResult(ForEachConverter.java:53)
at
org.apache.pig.backend.hadoop.executionengine.spark.converter.POOutputConsumerIterator.readNext(POOutputConsumerIterator.java:36)
... 15 more
Caused by: java.io.IOException: Unable to get parallelism hint from job conf
at org.apache.pig.impl.builtin.GFCross.exec(GFCross.java:61)
at org.apache.pig.impl.builtin.GFCross.exec(GFCross.java:1)
at
org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.POUserFunc.getNext(POUserFunc.java:344)
... 21 more
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