Error fetching notifications

Graylog Central (peer support)
1

In the Alerts menu, when I click “Manage notifications” I’m getting this error:

Fetching available alert notification types failed with status: cannot GET http://xx.xx.xx.xx:9000/api/alerts/callbacks/types (500)

And it get stuck in loading the notifications.

This is the error on the graylog server logs:

ERROR [AnyExceptionClassMapper] Unhandled exception in REST resource
java.lang.IllegalStateException: Duplicate key fabian
	at java.util.stream.Collectors.lambda$throwingMerger$0(Collectors.java:133) ~[?:1.8.0_151]
	at java.util.HashMap.merge(HashMap.java:1254) ~[?:1.8.0_151]
	at java.util.stream.Collectors.lambda$toMap$58(Collectors.java:1320) ~[?:1.8.0_151]
	at java.util.stream.ReduceOps$3ReducingSink.accept(ReduceOps.java:169) ~[?:1.8.0_151]
	at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1380) ~[?:1.8.0_151]
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481) ~[?:1.8.0_151]
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471) ~[?:1.8.0_151]
	at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708) ~[?:1.8.0_151]
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:1.8.0_151]
	at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499) ~[?:1.8.0_151]
	at org.graylog2.alarmcallbacks.EmailAlarmCallback.getEnrichedRequestedConfiguration(EmailAlarmCallback.java:216) ~[graylog.jar:?]
	at org.graylog2.rest.resources.alarmcallbacks.AlarmCallbacksResource.getConfigurationRequest(AlarmCallbacksResource.java:161) ~[graylog.jar:?]
	at org.graylog2.rest.resources.alarmcallbacks.AlarmCallbacksResource.available(AlarmCallbacksResource.java:118) ~[graylog.jar:?]
	at sun.reflect.GeneratedMethodAccessor238.invoke(Unknown Source) ~[?:?]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_151]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_151]
	at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81) ~[graylog.jar:?]
	at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:144) ~[graylog.jar:?]
	at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:161) ~[graylog.jar:?]
	at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$TypeOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:205) ~[graylog.jar:?]
	at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:99) ~[graylog.jar:?]
	at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:389) ~[graylog.jar:?]
	at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:347) ~[graylog.jar:?]
	at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:102) ~[graylog.jar:?]
	at org.glassfish.jersey.server.ServerRuntime$2.run(ServerRuntime.java:326) [graylog.jar:?]
	at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271) [graylog.jar:?]
	at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267) [graylog.jar:?]
	at org.glassfish.jersey.internal.Errors.process(Errors.java:315) [graylog.jar:?]
	at org.glassfish.jersey.internal.Errors.process(Errors.java:297) [graylog.jar:?]
	at org.glassfish.jersey.internal.Errors.process(Errors.java:267) [graylog.jar:?]
	at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317) [graylog.jar:?]
	at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:305) [graylog.jar:?]
	at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1154) [graylog.jar:?]
	at org.glassfish.jersey.grizzly2.httpserver.GrizzlyHttpContainer.service(GrizzlyHttpContainer.java:384) [graylog.jar:?]
	at org.glassfish.grizzly.http.server.HttpHandler$1.run(HttpHandler.java:224) [graylog.jar:?]
	at com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:176) [graylog.jar:?]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_151]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_151]
	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_151]

Can anyone help me please.

2

That looks like a bug.

Please create an issue at https://github.com/Graylog2/graylog2-server/issues and include as many details as possible, such as the actual alert notification configuration you’re using.

3

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