[ https://issues.apache.org/jira/browse/KYLIN-2684?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Billy Liu reassigned KYLIN-2684: -------------------------------- Assignee: Billy Liu (was: peng.jianhua) > Fix Object.class not registeredFailed 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: Billy Liu > Priority: Blocker > Labels: patch > Fix For: v2.1.0 > > Attachments: > 0001-KYLIN-2684-Failed-to-build-cube-with-spark-engine.patch > > > 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. -- This message was sent by Atlassian JIRA (v6.4.14#64029)