Make possible to set rest_transport_uri relative

[hc4]

Problem description

If I configure rest_transport_uri =, then graylog able to open main page and some other (e.g. streams, search), but some rest requests won't work.
For example:

return error: {"type":"ApiError","message":"Illegal URL: "}

Also error can be found in logs:

2016-08-03T11:56:34.538+03:00 ERROR [AnyExceptionClassMapper] Unhandled exception in REST resource
java.lang.IllegalArgumentException: Illegal URL:
        at retrofit2.Retrofit$Builder.baseUrl(Retrofit.java:437) ~[graylog.jar:?]
        at org.graylog2.rest.RemoteInterfaceProvider.get(RemoteInterfaceProvider.java:58) ~[graylog.jar:?]
        at org.graylog2.shared.rest.resources.ProxiedResource.lambda$createRemoteInterfaceProvider$1(ProxiedResource.java:90) ~[graylog.jar:?]
        at org.graylog2.shared.rest.resources.ProxiedResource.lambda$getForAllNodes$0(ProxiedResource.java:66) ~[graylog.jar:?]
        at java.util.stream.Collectors.lambda$toMap$58(Collectors.java:1321) ~[?:1.8.0_91]
        at java.util.stream.ReduceOps$3ReducingSink.accept(ReduceOps.java:169) ~[?:1.8.0_91]
        at java.util.HashMap$EntrySpliterator.forEachRemaining(HashMap.java:1683) ~[?:1.8.0_91]
        at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481) ~[?:1.8.0_91]
        at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471) ~[?:1.8.0_91]
        at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708) ~[?:1.8.0_91]
        at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:1.8.0_91]
        at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499) ~[?:1.8.0_91]
        at org.graylog2.shared.rest.resources.ProxiedResource.getForAllNodes(ProxiedResource.java:65) ~[graylog.jar:?]
        at org.graylog2.shared.rest.resources.ProxiedResource.getForAllNodes(ProxiedResource.java:58) ~[graylog.jar:?]
        at org.graylog2.rest.resources.cluster.ClusterMetricsResource.multipleMetricsAllNodes(ClusterMetricsResource.java:69) ~[graylog.jar:?]
        at sun.reflect.GeneratedMethodAccessor42.invoke(Unknown Source) ~[?:?]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_91]
        at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_91]
        at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81) ~[gra                                  ylog.jar:?]
        at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:144) ~[graylog.j                                  ar:?]
        at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:161) ~[graylog.                                  jar:?]
        at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$TypeOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.j                                  ava: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:1142) [?:1.8.0_91]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_91]
        at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]

Environment

• Graylog Version: 2.1.0-beta2

[joschi]

@hc4 The rest_transport_uri MUST NOT be a relative URI (we should check that and fail fast if it is, though) because it's being used by Graylog itself to locate and communicate with other Graylog nodes.

[hc4]

Got it :)

Changed config and everything works fine!

rest_transport_uri = http://127.0.0.1:80/
web_endpoint_uri =