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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/60420/
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Review request for kylin, Dayue Gao, Dong Li, hongbin ma, and Wang Xiaoyu.
Bugs: KYLIN-2684
https://issues.apache.org/jira/browse/KYLIN-2684
Repository: kylin
Description
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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.
Diffs
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core-cube/src/main/java/org/apache/kylin/cube/model/CubeDesc.java 82d0b1b24
Diff: https://reviews.apache.org/r/60420/diff/1/
Testing
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Thanks,
pengjianhua
