Hi Yanghua, can you describe a little about how to reproduce this exception?
yanghua (JIRA) <j...@apache.org>于2017年4月28日周五 上午8:45写道： > > [ > https://issues.apache.org/jira/browse/GEARPUMP-300?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15987957#comment-15987957 > ] > > yanghua commented on GEARPUMP-300: > ---------------------------------- > > I try to find the problem, in source code : > https://github.com/apache/incubator-gearpump/blob/master/streaming/src/main/scala/org/apache/gearpump/streaming/dsl/scalaapi/StreamApp.scala#L94 > here need a Iterator and will be serialized. > And in JavaStreamApp it seams if pass a ArrayList‘s instance it will use > ArrayList's inner Itr(Iterator's implementation), > > https://github.com/apache/incubator-gearpump/blob/master/streaming/src/main/scala/org/apache/gearpump/streaming/dsl/javaapi/JavaStreamApp.scala#L36 > but Itr is not serializable. > > > java.io.NotSerializableException official DSL version for Wordcount in > java > > > --------------------------------------------------------------------------- > > > > Key: GEARPUMP-300 > > URL: https://issues.apache.org/jira/browse/GEARPUMP-300 > > Project: Apache Gearpump > > Issue Type: Bug > > Reporter: yanghua > > > > java.io.NotSerializableException: java.util.ArrayList$Itr > > at > java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1184) > > at > java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548) > > at > java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509) > > at > java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432) > > at > java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) > > at > java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548) > > at > java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509) > > at > java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432) > > at > java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) > > at > java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548) > > at > java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509) > > at > java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432) > > at > java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) > > at > java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548) > > at > java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509) > > at > java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432) > > at > java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) > > at > java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348) > > at > akka.serialization.JavaSerializer$$anonfun$toBinary$1.apply$mcV$sp(Serializer.scala:235) > > at > akka.serialization.JavaSerializer$$anonfun$toBinary$1.apply(Serializer.scala:235) > > at > akka.serialization.JavaSerializer$$anonfun$toBinary$1.apply(Serializer.scala:235) > > at scala.util.DynamicVariable.withValue(DynamicVariable.scala:58) > > at akka.serialization.JavaSerializer.toBinary(Serializer.scala:235) > > at > org.apache.gearpump.cluster.UserConfig.withValue(UserConfig.scala:139) > > at > org.apache.gearpump.streaming.dsl.plan.DataSourceOp.getProcessor(OP.scala:98) > > at > org.apache.gearpump.streaming.dsl.plan.Planner$$anonfun$plan$2.apply(Planner.scala:50) > > at > org.apache.gearpump.streaming.dsl.plan.Planner$$anonfun$plan$2.apply(Planner.scala:50) > > at org.apache.gearpump.util.Graph$$anonfun$1.apply(Graph.scala:143) > > at org.apache.gearpump.util.Graph$$anonfun$1.apply(Graph.scala:143) > > at scala.collection.immutable.List.map(List.scala:277) > > at org.apache.gearpump.util.Graph.mapVertex(Graph.scala:143) > > at > org.apache.gearpump.streaming.dsl.plan.Planner.plan(Planner.scala:50) > > at > org.apache.gearpump.streaming.dsl.StreamApp.plan(StreamApp.scala:62) > > at > org.apache.gearpump.streaming.dsl.StreamApp$.streamAppToApplication(StreamApp.scala:74) > > at > org.apache.gearpump.streaming.dsl.javaapi.JavaStreamApp.run(JavaStreamApp.scala:45) > > at com.github.gearpump.demo.WordCount.main(WordCount.java:119) > > at com.github.gearpump.demo.WordCount.main(WordCount.java:25) > > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) > > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > > at java.lang.reflect.Method.invoke(Method.java:498) > > at > org.apache.gearpump.cluster.main.AppSubmitter$.main(AppSubmitter.scala:87) > > at > org.apache.gearpump.util.AkkaApp$$anonfun$main$1.apply(AkkaApp.scala:42) > > at > org.apache.gearpump.util.AkkaApp$$anonfun$main$1.apply(AkkaApp.scala:42) > > at scala.util.Try$.apply(Try.scala:192) > > at org.apache.gearpump.util.AkkaApp$class.main(AkkaApp.scala:41) > > at > org.apache.gearpump.cluster.main.AppSubmitter$.main(AppSubmitter.scala:28) > > at > org.apache.gearpump.cluster.main.Gear$.executeCommand(Gear.scala:40) > > at org.apache.gearpump.cluster.main.Gear$.main(Gear.scala:59) > > at org.apache.gearpump.cluster.main.Gear.main(Gear.scala) > > > > -- > This message was sent by Atlassian JIRA > (v6.3.15#6346) >
