yes. again it trapped me. It was the /etc/hosts that I change when I am using VMs. Now, even with the INFO "INFO org.apache.flink.api.java.typeutils.TypeExtractor - class org.joda.time.DateTime does not contain a getter for field Millis" my program is running. Thanks! -- -- Felipe Gutierrez -- skype: felipe.o.gutierrez -- https://felipeogutierrez.blogspot.com
On Sat, Jun 13, 2020 at 12:40 PM Till Rohrmann <trohrm...@apache.org> wrote: > > Hi Felipe, > > the problem why you cannot submit a job to the Flink cluster is that the > client cannot reach the blob server: > > Caused by: java.io.IOException: Could not connect to BlobServer at address > localhost/192.168.56.1:35193 > > Could you check whether the cluster has been properly started and is > reachable under 192.168.56.1:35193? You could also share the cluster logs > with us to further debug the problem. > > Cheers, > Till > > On Sat, Jun 13, 2020 at 12:09 PM Felipe Gutierrez > <felipe.o.gutier...@gmail.com> wrote: >> >> Hi, I tried to change the joda.time maven version to be the same of >> the flink-training example and I am getting this error on IntelliJ. >> Maybe it is more precislyL >> >> 2020-06-13 12:04:27,333 INFO >> org.apache.flink.streaming.runtime.tasks.StreamTask [] - No >> state backend has been configured, using default (Memory / JobManager) >> MemoryStateBackend (data in heap memory / checkpoints to JobManager) >> (checkpoints: 'null', savepoints: 'null', asynchronous: TRUE, >> maxStateSize: 5242880) >> 2020-06-13 12:04:27,333 INFO >> org.apache.flink.runtime.taskmanager.Task [] - >> reducer -> flat-output -> Sink: sink (4/4) >> (bb24f17c4869d5de9f684e64ff97cf5b) switched from DEPLOYING to RUNNING. >> 2020-06-13 12:04:27,337 INFO >> org.apache.flink.runtime.executiongraph.ExecutionGraph [] - >> reducer -> flat-output -> Sink: sink (4/4) >> (bb24f17c4869d5de9f684e64ff97cf5b) switched from DEPLOYING to RUNNING. >> 2020-06-13 12:04:27,360 INFO >> org.apache.flink.streaming.runtime.tasks.StreamTask [] - No >> state backend has been configured, using default (Memory / JobManager) >> MemoryStateBackend (data in heap memory / checkpoints to JobManager) >> (checkpoints: 'null', savepoints: 'null', asynchronous: TRUE, >> maxStateSize: 5242880) >> 2020-06-13 12:04:27,360 INFO >> org.apache.flink.runtime.taskmanager.Task [] - >> reducer -> flat-output -> Sink: sink (3/4) >> (0bd2d20546f4ee5eef1429bf5c80a1b4) switched from DEPLOYING to RUNNING. >> 2020-06-13 12:04:27,362 INFO >> org.apache.flink.runtime.executiongraph.ExecutionGraph [] - >> reducer -> flat-output -> Sink: sink (3/4) >> (0bd2d20546f4ee5eef1429bf5c80a1b4) switched from DEPLOYING to RUNNING. >> 2020-06-13 12:04:27,376 INFO >> org.apache.flink.runtime.state.heap.HeapKeyedStateBackend [] - >> Initializing heap keyed state backend with stream factory. >> 2020-06-13 12:04:27,381 INFO >> org.apache.flink.runtime.state.heap.HeapKeyedStateBackend [] - >> Initializing heap keyed state backend with stream factory. >> 2020-06-13 12:04:27,381 INFO >> org.apache.flink.runtime.state.heap.HeapKeyedStateBackend [] - >> Initializing heap keyed state backend with stream factory. >> 2020-06-13 12:04:27,389 INFO >> org.apache.flink.runtime.state.heap.HeapKeyedStateBackend [] - >> Initializing heap keyed state backend with stream factory. >> 2020-06-13 12:04:27,511 WARN >> org.apache.flink.api.java.typeutils.runtime.kryo.KryoSerializer [] - >> Falling back to default Kryo serializer because Chill serializer >> couldn't be found. >> java.lang.reflect.InvocationTargetException: null >> at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >> ~[?:?] >> at >> jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) >> ~[?:?] >> at >> jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) >> ~[?:?] >> at java.lang.reflect.Method.invoke(Method.java:566) ~[?:?] >> at >> org.apache.flink.api.java.typeutils.runtime.kryo.KryoSerializer.getKryoInstance(KryoSerializer.java:436) >> [classes/:?] >> at >> org.apache.flink.api.java.typeutils.runtime.kryo.KryoSerializer.checkKryoInitialized(KryoSerializer.java:454) >> [classes/:?] >> at >> org.apache.flink.api.java.typeutils.runtime.kryo.KryoSerializer.serialize(KryoSerializer.java:289) >> [classes/:?] >> at >> org.apache.flink.streaming.runtime.streamrecord.StreamElementSerializer.serialize(StreamElementSerializer.java:175) >> [classes/:?] >> at >> org.apache.flink.streaming.runtime.streamrecord.StreamElementSerializer.serialize(StreamElementSerializer.java:46) >> [classes/:?] >> at >> org.apache.flink.runtime.plugable.SerializationDelegate.write(SerializationDelegate.java:54) >> [classes/:?] >> at >> org.apache.flink.runtime.io.network.api.serialization.SpanningRecordSerializer.serializeRecord(SpanningRecordSerializer.java:71) >> [classes/:?] >> at >> org.apache.flink.runtime.io.network.api.writer.RecordWriter.emit(RecordWriter.java:117) >> [classes/:?] >> at >> org.apache.flink.runtime.io.network.api.writer.ChannelSelectorRecordWriter.emit(ChannelSelectorRecordWriter.java:60) >> [classes/:?] >> at >> org.apache.flink.streaming.runtime.io.RecordWriterOutput.pushToRecordWriter(RecordWriterOutput.java:107) >> [classes/:?] >> at >> org.apache.flink.streaming.runtime.io.RecordWriterOutput.collect(RecordWriterOutput.java:89) >> [classes/:?] >> at >> org.apache.flink.streaming.runtime.io.RecordWriterOutput.collect(RecordWriterOutput.java:45) >> [classes/:?] >> at >> org.apache.flink.streaming.api.operators.CountingOutput.collect(CountingOutput.java:52) >> [classes/:?] >> at >> org.apache.flink.streaming.api.operators.CountingOutput.collect(CountingOutput.java:30) >> [classes/:?] >> at >> org.apache.flink.streaming.api.operators.StreamSourceContexts$NonTimestampContext.collect(StreamSourceContexts.java:104) >> [classes/:?] >> at >> org.apache.flink.streaming.api.operators.StreamSourceContexts$NonTimestampContext.collectWithTimestamp(StreamSourceContexts.java:111) >> [classes/:?] >> at >> org.apache.flink.streaming.examples.aggregate.util.TaxiRideSource.generateTaxiRideArray(TaxiRideSource.java:114) >> [classes/:?] >> at >> org.apache.flink.streaming.examples.aggregate.util.TaxiRideSource.run(TaxiRideSource.java:96) >> [classes/:?] >> at >> org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:100) >> [classes/:?] >> at >> org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:63) >> [classes/:?] >> at >> org.apache.flink.streaming.runtime.tasks.SourceStreamTask$LegacySourceFunctionThread.run(SourceStreamTask.java:208) >> [classes/:?] >> Caused by: com.esotericsoftware.kryo.KryoException: Unable to resolve >> type variable: A >> at >> com.esotericsoftware.kryo.util.GenericsUtil.resolveTypeVariable(GenericsUtil.java:114) >> ~[kryo-5.0.0-RC1.jar:?] >> at >> com.esotericsoftware.kryo.util.GenericsUtil.resolveTypeVariable(GenericsUtil.java:86) >> ~[kryo-5.0.0-RC1.jar:?] >> at >> com.esotericsoftware.kryo.util.GenericsUtil.resolveType(GenericsUtil.java:41) >> ~[kryo-5.0.0-RC1.jar:?] >> at >> com.esotericsoftware.kryo.util.Generics$GenericType.initialize(Generics.java:263) >> ~[kryo-5.0.0-RC1.jar:?] >> at >> com.esotericsoftware.kryo.util.Generics$GenericType.<init>(Generics.java:228) >> ~[kryo-5.0.0-RC1.jar:?] >> at >> com.esotericsoftware.kryo.util.Generics$GenericType.initialize(Generics.java:242) >> ~[kryo-5.0.0-RC1.jar:?] >> at >> com.esotericsoftware.kryo.util.Generics$GenericType.<init>(Generics.java:228) >> ~[kryo-5.0.0-RC1.jar:?] >> at >> com.esotericsoftware.kryo.serializers.CachedFields.addField(CachedFields.java:139) >> ~[kryo-5.0.0-RC1.jar:?] >> at >> com.esotericsoftware.kryo.serializers.CachedFields.rebuild(CachedFields.java:99) >> ~[kryo-5.0.0-RC1.jar:?] >> at >> com.esotericsoftware.kryo.serializers.FieldSerializer.<init>(FieldSerializer.java:82) >> ~[kryo-5.0.0-RC1.jar:?] >> at >> com.esotericsoftware.kryo.serializers.FieldSerializer.<init>(FieldSerializer.java:68) >> ~[kryo-5.0.0-RC1.jar:?] >> at >> org.apache.flink.runtime.types.ScalaCollectionsRegistrar.useField$1(FlinkScalaKryoInstantiator.scala:93) >> ~[classes/:?] >> at >> org.apache.flink.runtime.types.ScalaCollectionsRegistrar.apply(FlinkScalaKryoInstantiator.scala:98) >> ~[classes/:?] >> at >> org.apache.flink.runtime.types.AllScalaRegistrar.apply(FlinkScalaKryoInstantiator.scala:172) >> ~[classes/:?] >> at >> org.apache.flink.runtime.types.FlinkScalaKryoInstantiator.newKryo(FlinkScalaKryoInstantiator.scala:84) >> ~[classes/:?] >> ... 25 more >> -- >> -- Felipe Gutierrez >> -- skype: felipe.o.gutierrez >> -- https://felipeogutierrez.blogspot.com >> >> On Sat, Jun 13, 2020 at 10:57 AM Felipe Gutierrez >> <felipe.o.gutier...@gmail.com> wrote: >> > >> > Hi Yun, it says an INFO "class org.joda.time.DateTime cannot be used >> > as a POJO type because not all fields are valid POJO fields, and must >> > be processed as GenericType. Please read the Flink documentation on >> > "Data Types & Serialization" for details of the effect on >> > performance", however I cannot submit my job. It is strange because I >> > can start and run it on Intellij, but not on the standalone cluster in >> > my machine. >> > >> > 2020-06-13 10:50:56,051 INFO org.apache.flink.core.fs.FileSystem >> > - Hadoop is not in the classpath/dependencies. >> > The extended set of supported File Systems via Hadoop is not >> > available. >> > 2020-06-13 10:50:56,143 INFO >> > org.apache.flink.runtime.security.modules.HadoopModuleFactory - >> > Cannot create Hadoop Security Module because Hadoop cannot be found in >> > the Classpath. >> > 2020-06-13 10:50:56,164 INFO >> > org.apache.flink.runtime.security.modules.JaasModule - Jaas >> > file will be created as /tmp/jaas-837993701496785981.conf. >> > 2020-06-13 10:50:56,169 INFO >> > org.apache.flink.runtime.security.contexts.HadoopSecurityContextFactory >> > - Cannot install HadoopSecurityContext because Hadoop cannot be found >> > in the Classpath. >> > 2020-06-13 10:50:56,169 WARN >> > org.apache.flink.runtime.security.SecurityUtils - Unable >> > to install incompatible security context factory >> > org.apache.flink.runtime.security.contexts.HadoopSecurityContextFactory >> > 2020-06-13 10:50:56,171 INFO org.apache.flink.client.cli.CliFrontend >> > - Running 'run' command. >> > 2020-06-13 10:50:56,242 INFO org.apache.flink.client.cli.CliFrontend >> > - Building program from JAR file >> > 2020-06-13 10:50:57,084 INFO org.apache.flink.client.ClientUtils >> > - Starting program (detached: false) >> > 2020-06-13 10:50:59,021 INFO >> > org.apache.flink.api.java.typeutils.TypeExtractor - class >> > org.joda.time.DateTime does not contain a getter for field iMillis >> > 2020-06-13 10:50:59,021 INFO >> > org.apache.flink.api.java.typeutils.TypeExtractor - class >> > org.joda.time.DateTime does not contain a setter for field iMillis >> > 2020-06-13 10:50:59,021 INFO >> > org.apache.flink.api.java.typeutils.TypeExtractor - Class >> > class org.joda.time.DateTime cannot be used as a POJO type because not >> > all fields are valid POJO fields, and must be processed as >> > GenericType. Please read the Flink documentation on "Data Types & >> > Serialization" for details of the effect on performance. >> > 2020-06-13 10:50:59,028 INFO >> > org.apache.flink.api.java.typeutils.TypeExtractor - class >> > org.joda.time.DateTime does not contain a getter for field iMillis >> > 2020-06-13 10:50:59,028 INFO >> > org.apache.flink.api.java.typeutils.TypeExtractor - class >> > org.joda.time.DateTime does not contain a setter for field iMillis >> > 2020-06-13 10:50:59,028 INFO >> > org.apache.flink.api.java.typeutils.TypeExtractor - Class >> > class org.joda.time.DateTime cannot be used as a POJO type because not >> > all fields are valid POJO fields, and must be processed as >> > GenericType. Please read the Flink documentation on "Data Types & >> > Serialization" for details of the effect on performance. >> > 2020-06-13 10:53:19,508 WARN org.apache.flink.util.ExecutorUtils >> > - ExecutorService did not terminate in time. >> > Shutting it down now. >> > 2020-06-13 10:53:19,510 ERROR org.apache.flink.client.cli.CliFrontend >> > - Error while running the command. >> > org.apache.flink.client.program.ProgramInvocationException: The main >> > method caused an error: java.util.concurrent.ExecutionException: >> > org.apache.flink.runtime.client.JobSubmissionException: Failed to >> > submit JobGraph. >> > at >> > org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:335) >> > at >> > org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:205) >> > at org.apache.flink.client.ClientUtils.executeProgram(ClientUtils.java:148) >> > at >> > org.apache.flink.client.cli.CliFrontend.executeProgram(CliFrontend.java:662) >> > at org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:210) >> > at >> > org.apache.flink.client.cli.CliFrontend.parseParameters(CliFrontend.java:893) >> > at >> > org.apache.flink.client.cli.CliFrontend.lambda$main$10(CliFrontend.java:966) >> > at >> > org.apache.flink.runtime.security.contexts.NoOpSecurityContext.runSecured(NoOpSecurityContext.java:30) >> > at org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:966) >> > Caused by: java.lang.RuntimeException: >> > java.util.concurrent.ExecutionException: >> > org.apache.flink.runtime.client.JobSubmissionException: Failed to >> > submit JobGraph. >> > at org.apache.flink.util.ExceptionUtils.rethrow(ExceptionUtils.java:276) >> > at >> > org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.executeAsync(StreamExecutionEnvironment.java:1764) >> > at >> > org.apache.flink.client.program.StreamContextEnvironment.executeAsync(StreamContextEnvironment.java:106) >> > at >> > org.apache.flink.client.program.StreamContextEnvironment.execute(StreamContextEnvironment.java:72) >> > at >> > org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.execute(StreamExecutionEnvironment.java:1643) >> > at >> > org.apache.flink.streaming.examples.aggregate.TaxiRideCountPreAggregate.main(TaxiRideCountPreAggregate.java:136) >> > 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.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:321) >> > ... 8 more >> > Caused by: java.util.concurrent.ExecutionException: >> > org.apache.flink.runtime.client.JobSubmissionException: Failed to >> > submit JobGraph. >> > at >> > java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:357) >> > at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1908) >> > at >> > org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.executeAsync(StreamExecutionEnvironment.java:1759) >> > ... 17 more >> > Caused by: org.apache.flink.runtime.client.JobSubmissionException: >> > Failed to submit JobGraph. >> > at >> > org.apache.flink.client.program.rest.RestClusterClient.lambda$submitJob$7(RestClusterClient.java:359) >> > at >> > java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884) >> > at >> > java.util.concurrent.CompletableFuture$UniExceptionally.tryFire(CompletableFuture.java:866) >> > at >> > java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) >> > at >> > java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990) >> > at >> > org.apache.flink.runtime.concurrent.FutureUtils.lambda$retryOperationWithDelay$8(FutureUtils.java:274) >> > at >> > java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:774) >> > at >> > java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:750) >> > at >> > java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) >> > at >> > java.util.concurrent.CompletableFuture.postFire(CompletableFuture.java:575) >> > at >> > java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:943) >> > at >> > java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:456) >> > at >> > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) >> > at >> > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) >> > at java.lang.Thread.run(Thread.java:748) >> > Caused by: org.apache.flink.runtime.rest.util.RestClientException: >> > [org.apache.flink.runtime.rest.handler.RestHandlerException: Could not >> > upload job files. >> > at >> > org.apache.flink.runtime.rest.handler.job.JobSubmitHandler.lambda$uploadJobGraphFiles$4(JobSubmitHandler.java:169) >> > at >> > java.util.concurrent.CompletableFuture.biApply(CompletableFuture.java:1119) >> > at >> > java.util.concurrent.CompletableFuture$BiApply.tryFire(CompletableFuture.java:1084) >> > at >> > java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488) >> > at >> > java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1609) >> > at >> > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) >> > at >> > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) >> > at java.lang.Thread.run(Thread.java:748) >> > Caused by: org.apache.flink.util.FlinkException: Could not upload job >> > files. >> > at >> > org.apache.flink.runtime.client.ClientUtils.uploadJobGraphFiles(ClientUtils.java:80) >> > at >> > org.apache.flink.runtime.rest.handler.job.JobSubmitHandler.lambda$uploadJobGraphFiles$4(JobSubmitHandler.java:167) >> > ... 7 more >> > Caused by: java.io.IOException: Could not connect to BlobServer at >> > address localhost/192.168.56.1:35193 >> > at org.apache.flink.runtime.blob.BlobClient.<init>(BlobClient.java:100) >> > at >> > org.apache.flink.runtime.rest.handler.job.JobSubmitHandler.lambda$null$3(JobSubmitHandler.java:167) >> > at >> > org.apache.flink.runtime.client.ClientUtils.uploadJobGraphFiles(ClientUtils.java:76) >> > ... 8 more >> > Caused by: java.net.ConnectException: Connection timed out (Connection >> > timed out) >> > at java.net.PlainSocketImpl.socketConnect(Native Method) >> > at >> > java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) >> > at >> > java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) >> > at >> > java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) >> > at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) >> > at java.net.Socket.connect(Socket.java:607) >> > at org.apache.flink.runtime.blob.BlobClient.<init>(BlobClient.java:95) >> > ... 10 more >> > ] >> > at >> > org.apache.flink.runtime.rest.RestClient.parseResponse(RestClient.java:390) >> > at >> > org.apache.flink.runtime.rest.RestClient.lambda$submitRequest$3(RestClient.java:374) >> > at >> > java.util.concurrent.CompletableFuture.uniCompose(CompletableFuture.java:966) >> > at >> > java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:940) >> > ... 4 more >> > -- >> > -- Felipe Gutierrez >> > -- skype: felipe.o.gutierrez >> > -- https://felipeogutierrez.blogspot.com >> > >> > On Sat, Jun 13, 2020 at 5:08 AM Yun Gao <yungao...@aliyun.com> wrote: >> > > >> > > Hi Felipe, >> > > >> > > I tested the basic RideCleansingExercise[1] jobs that uses the >> > > TaxiRide type locally and it seems to be able to startup normally. >> > > >> > > Could you also share your current executing code and the full >> > > stacktrace of the exception ? >> > > >> > > Best, >> > > Yun >> > > >> > > [1] >> > > https://github.com/ververica/flink-training-exercises/blob/master/src/main/java/com/ververica/flinktraining/exercises/datastream_java/basics/RideCleansingExercise.java >> > > >> > > ------------------Original Mail ------------------ >> > > Sender:Felipe Gutierrez <felipe.o.gutier...@gmail.com> >> > > Send Date:Fri Jun 12 23:11:28 2020 >> > > Recipients:user <user@flink.apache.org> >> > > Subject:How to add org.joda.time.DateTime in the >> > > StreamExecutionEnvironment to the TaxiRide training example? >> > >> >> > >> Hi, >> > >> >> > >> I am using the flink training exercise TaxiRide [1] to execute a >> > >> stream count of events. On the cluster and on my local machine I am >> > >> receiving the message that joda.Time cannot be serialized "class >> > >> org.joda.time.LocalDateTime is not a valid POJO type". However it is >> > >> starting the job on the cluster, but not in my local machine. So I >> > >> searched in the internet and it is requested to register the jodaTime >> > >> class on the environment[2]. I did like this: >> > >> >> > >> env.getConfig().registerTypeWithKryoSerializer(DateTime.class, >> > >> AvroKryoSerializerUtils.JodaDateTimeSerializer.class); >> > >> env.getConfig().registerTypeWithKryoSerializer(LocalDate.class, >> > >> AvroKryoSerializerUtils.JodaLocalDateSerializer.class); >> > >> env.getConfig().registerTypeWithKryoSerializer(LocalTime.class, >> > >> AvroKryoSerializerUtils.JodaLocalTimeSerializer.class); >> > >> >> > >> and I added the joda and avro dependency on the pom.xml: >> > >> >> > >> <dependency> >> > >> <groupId>joda-time</groupId> >> > >> <artifactId>joda-time</artifactId> >> > >> </dependency> >> > >> <dependency> >> > >> <groupId>org.apache.flink</groupId> >> > >> <artifactId>flink-avro</artifactId> >> > >> <version>${project.version}</version> >> > >> </dependency> >> > >> >> > >> I also tested using addDefaultKryoSerializer but I got the same error. >> > >> For some reason, it is still not working. Does anyone have some hint >> > >> of what could be happening? >> > >> >> > >> Thanks! Felipe >> > >> [1] >> > >> https://github.com/ververica/flink-training-exercises/blob/master/src/main/java/com/ververica/flinktraining/exercises/datastream_java/datatypes/TaxiRide.java >> > >> [2] >> > >> https://ci.apache.org/projects/flink/flink-docs-stable/dev/custom_serializers.html >> > >> >> > >> -- >> > >> -- Felipe Gutierrez >> > >> -- skype: felipe.o.gutierrez >> > >> -- https://felipeogutierrez.blogspot.com