[jira] [Created] (KYLIN-2684) Failed to build cube with spark engine

["peng.jianhua (JIRA)" <ji...@apache.org>]

peng.jianhua created KYLIN-2684:
-----------------------------------

             Summary: Failed to build cube with spark engine
                 Key: KYLIN-2684
                 URL: https://issues.apache.org/jira/browse/KYLIN-2684
             Project: Kylin
          Issue Type: Bug
          Components: Spark Engine
    Affects Versions: v2.1.0
         Environment: spark 1.6.3

            Reporter: peng.jianhua
            Assignee: peng.jianhua
            Priority: Blocker
             Fix For: v2.1.0


Failed to build cube with spark engine at "#7 Step Name: Build Cube with Spark".
The error log is as following:

Exception in thread "main" java.lang.RuntimeException: error execute org.apache.kylin.engine.spark.SparkCubingByLayer
	at org.apache.kylin.common.util.AbstractApplication.execute(AbstractApplication.java:42)
	at org.apache.kylin.common.util.SparkEntry.main(SparkEntry.java:44)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:731)
	at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:181)
	at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:206)
	at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:121)
	at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
Caused by: com.esotericsoftware.kryo.KryoException: java.lang.IllegalArgumentException: Class is not registered: Object
Note: To register this class use: kryo.register(Object.class);
Serialization trace:
cuboidTreeLock (org.apache.kylin.cube.model.CubeDesc)
	at com.esotericsoftware.kryo.serializers.FieldSerializer$ObjectField.write(FieldSerializer.java:585)
	at com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:213)
	at com.esotericsoftware.kryo.Kryo.writeClassAndObject(Kryo.java:568)
	at org.apache.spark.serializer.KryoSerializationStream.writeObject(KryoSerializer.scala:194)
	at org.apache.spark.broadcast.TorrentBroadcast$.blockifyObject(TorrentBroadcast.scala:203)
	at org.apache.spark.broadcast.TorrentBroadcast.writeBlocks(TorrentBroadcast.scala:102)
	at org.apache.spark.broadcast.TorrentBroadcast.<init>(TorrentBroadcast.scala:85)
	at org.apache.spark.broadcast.TorrentBroadcastFactory.newBroadcast(TorrentBroadcastFactory.scala:34)
	at org.apache.spark.broadcast.BroadcastManager.newBroadcast(BroadcastManager.scala:63)
	at org.apache.spark.SparkContext.broadcast(SparkContext.scala:1326)
	at org.apache.spark.api.java.JavaSparkContext.broadcast(JavaSparkContext.scala:639)
	at org.apache.kylin.engine.spark.SparkCubingByLayer.execute(SparkCubingByLayer.java:166)
	at org.apache.kylin.common.util.AbstractApplication.execute(AbstractApplication.java:37)
	... 10 more
Caused by: java.lang.IllegalArgumentException: Class is not registered: Object
Note: To register this class use: kryo.register(Object.class);
	at com.esotericsoftware.kryo.Kryo.getRegistration(Kryo.java:442)
	at com.esotericsoftware.kryo.util.DefaultClassResolver.writeClass(DefaultClassResolver.java:79)
	at com.esotericsoftware.kryo.Kryo.writeClass(Kryo.java:472)
	at com.esotericsoftware.kryo.serializers.FieldSerializer$ObjectField.write(FieldSerializer.java:561)
	... 22 more
	
	
	
Change 'private Object cuboidTreeLock = new Object();' to 'private byte[] cuboidTreeLock = new byte[0];' in CubeDesc.java to solve this problem.



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