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liyunzhang_intel commented on PIG-5134: --------------------------------------- [~nkollar]: here is my understanding for the jira. You provide 2 options to solve the issue 1. PIG-5134.patch:use Kryo 4.0.0 serialization. but if use PIG-5134.patch,cases with HiveUDF and ORC will fail because the kryo version need to be 2.22 2. PIG-5134.1.patch: implemented readObject and writeObject methods in AvroTupleWrapper and not to use Kryo. But customized Wrapper class like AvroTupleWrapper will still be broken. If my understanding is right, I suggest to exclude TestAvroStorage from unittest and not fixed in first release of pig on spark. [~rohini], can you give us some suggestion? > Fix TestAvroStorage unit test in Spark mode > ------------------------------------------- > > Key: PIG-5134 > URL: https://issues.apache.org/jira/browse/PIG-5134 > Project: Pig > Issue Type: Bug > Components: spark > Reporter: liyunzhang_intel > Assignee: Nandor Kollar > Fix For: spark-branch > > Attachments: PIG-5134_2.patch, PIG-5134.patch > > > It seems that test fails, because Avro GenericData#Record doesn't implement > Serializable interface: > {code} > 2017-02-23 09:14:41,887 ERROR [main] spark.JobGraphBuilder > (JobGraphBuilder.java:sparkOperToRDD(183)) - throw exception in > sparkOperToRDD: > org.apache.spark.SparkException: Job aborted due to stage failure: Task 0.0 > in stage 9.0 (TID 9) had a not serializable result: > org.apache.avro.generic.GenericData$Record > Serialization stack: > - object not serializable (class: > org.apache.avro.generic.GenericData$Record, value: {"key": "stuff in closet", > "value1": {"thing": "hat", "count": 7}, "value2": {"thing": "coat", "count": > 2}}) > - field (class: org.apache.pig.impl.util.avro.AvroTupleWrapper, name: > avroObject, type: interface org.apache.avro.generic.IndexedRecord) > - object (class org.apache.pig.impl.util.avro.AvroTupleWrapper, > org.apache.pig.impl.util.avro.AvroTupleWrapper@3d3a58c1) > at > org.apache.spark.scheduler.DAGScheduler.org$apache$spark$scheduler$DAGScheduler$$failJobAndIndependentStages(DAGScheduler.scala:1431) > at > org.apache.spark.scheduler.DAGScheduler$$anonfun$abortStage$1.apply(DAGScheduler.scala:1419) > {code} > The failing tests is a new test introduced with merging trunk to spark > branch, that's why we didn't see this error before. -- This message was sent by Atlassian JIRA (v6.3.15#6346)