I just started testing Flink 1.11.1 and noticed that the Task Managers section in the UI doesn’t load. The exception in the log is: j.i.NotSerializableException: org.apache.flink.runtime.rest.messages.ResourceProfileInfo \tat j.i.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1184) \tat j.i.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548) \tat j.i.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509) \tat j.i.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432) \tat j.i.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) \tat j.i.ObjectOutputStream.writeObject(ObjectOutputStream.java:348) \tat java.util.ArrayList.writeObject(ArrayList.java:766) \tat s.r.GeneratedMethodAccessor22.invoke(Unknown Source) \tat s.r.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) \tat j.l.reflect.Method.invoke(Method.java:498) \tat j.i.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:1140) \tat j.i.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1496) \tat j.i.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432) \tat j.i.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) \tat j.i.ObjectOutputStream.writeObject(ObjectOutputStream.java:348) \tat o.a.f.u.InstantiationUtil.serializeObject(InstantiationUtil.java:586) \tat o.a.f.u.SerializedValue.<init>(SerializedValue.java:52) \tat o.a.f.r.r.a.AkkaRpcActor.serializeRemoteResultAndVerifySize(AkkaRpcActor.java:357) \t... 29 common frames omitted Wrapped by: o.a.f.r.r.a.e.AkkaRpcException: Failed to serialize the result for RPC call : requestTaskManagerInfo. \tat o.a.f.r.r.a.AkkaRpcActor.serializeRemoteResultAndVerifySize(AkkaRpcActor.java:368) \tat o.a.f.r.r.a.AkkaRpcActor.lambda$sendAsyncResponse$0(AkkaRpcActor.java:335) \tat j.u.c.CompletableFuture.uniWhenComplete(CompletableFuture.java:760) \tat j.u.c.CompletableFuture.uniWhenCompleteStage(CompletableFuture.java:778) \tat j.u.c.CompletableFuture.whenComplete(CompletableFuture.java:2140) \tat o.a.f.r.r.a.AkkaRpcActor.sendAsyncResponse(AkkaRpcActor.java:329) \tat o.a.f.r.r.a.AkkaRpcActor.handleRpcInvocation(AkkaRpcActor.java:298) \tat o.a.f.r.r.a.AkkaRpcActo...
Peter
