Simon Bosse created STREAMPIPES-461:
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             Summary: 500 error if mqtt adapter is created
                 Key: STREAMPIPES-461
                 URL: https://issues.apache.org/jira/browse/STREAMPIPES-461
             Project: StreamPipes
          Issue Type: Bug
            Reporter: Simon Bosse


Hi,

we are running streampipes inside kubernetes. At the moment we have the problem 
that if a mqtt adapter is created after clicking on "Start adapter" the message 
"Please wait while your adapter is generated" keeps spinning. If I look at the 
requests in the browser I can see that there is a 500 error. 

If I open then streampipes in a new window under connect/adapters I can see the 
adapter but it is not shown in the pipeline editor.

In the logs of the backend pod I see this 500 error. What can be the cause of 
this?

10:12:29.643 SP [http-nio-8030-exec-2] INFO  
o.a.s.c.c.m.m.AdapterMasterManagement - Start adapter
10:12:29.647 SP [http-nio-8030-exec-2] INFO  
o.a.s.c.c.m.m.AdapterMasterManagement - Install source (source URL: 
http://backend:8030/streampipes-backend/api/v2/connect/[email protected]/master/sources/69f9ff51-f7f0-40b1-8948-20c76a269fa4
 in backend over URL: 
http://backend:8030/streampipes-backend/api/v2/noauth/users/[email protected]/element
10:12:29.676 SP [http-nio-8030-exec-2] ERROR 
o.a.c.c.C.[.[.[.[.a.s.b.StreamPipesResourceConfig] - Servlet.service() for 
servlet [org.apache.streampipes.backend.StreamPipesResourceConfig] in context 
with path [/streampipes-backend] threw exception 
[javax.persistence.PersistenceException: 
javax.persistence.PersistenceException: javax.persistence.PersistenceException: 
java.lang.NullPointerException] with root cause
java.lang.NullPointerException: null
        at 
io.fogsy.empire.core.empire.impl.EntityManagerImpl$MergeCascade.cascade(EntityManagerImpl.java:530)
        at 
io.fogsy.empire.core.empire.impl.EntityManagerImpl$CascadeAction.test(EntityManagerImpl.java:580)
        at 
io.fogsy.empire.core.empire.impl.EntityManagerImpl.cascadeOperation(EntityManagerImpl.java:516)
        at 
io.fogsy.empire.core.empire.impl.EntityManagerImpl.persist(EntityManagerImpl.java:360)
        at 
io.fogsy.empire.core.empire.impl.EntityManagerImpl$MergeCascade.cascade(EntityManagerImpl.java:535)
        at 
io.fogsy.empire.core.empire.impl.EntityManagerImpl$CascadeAction.test(EntityManagerImpl.java:580)
        at 
io.fogsy.empire.core.empire.impl.EntityManagerImpl.cascadeOperation(EntityManagerImpl.java:516)
        at 
io.fogsy.empire.core.empire.impl.EntityManagerImpl.persist(EntityManagerImpl.java:360)
        at 
io.fogsy.empire.core.empire.impl.EntityManagerImpl$MergeCascade.cascade(EntityManagerImpl.java:535)
        at 
io.fogsy.empire.core.empire.impl.EntityManagerImpl$CascadeAction.test(EntityManagerImpl.java:584)
        at 
io.fogsy.empire.core.empire.impl.EntityManagerImpl.cascadeOperation(EntityManagerImpl.java:516)
        at 
io.fogsy.empire.core.empire.impl.EntityManagerImpl.persist(EntityManagerImpl.java:360)
        at 
org.apache.streampipes.storage.rdf4j.impl.PipelineElementStorageRequests.storeDataStream(PipelineElementStorageRequests.java:57)
        at 
org.apache.streampipes.storage.rdf4j.impl.PipelineElementInMemoryStorage.storeDataStream(PipelineElementInMemoryStorage.java:104)
        at 
org.apache.streampipes.manager.verification.DataStreamVerifier.store(DataStreamVerifier.java:51)
        at 
org.apache.streampipes.manager.verification.ElementVerifier.verifyAndAdd(ElementVerifier.java:100)
        at 
org.apache.streampipes.connect.container.master.management.AdapterMasterManagement.installDataSource(AdapterMasterManagement.java:125)
        at 
org.apache.streampipes.connect.container.master.management.AdapterMasterManagement.addAdapter(AdapterMasterManagement.java:118)
        at 
org.apache.streampipes.connect.container.master.rest.AdapterResource.addAdapter(AdapterResource.java:56)
        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.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory.lambda$static$0(ResourceMethodInvocationHandlerFactory.java:52)
        at 
org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$$Lambda$700/0x000000002406e8f0.invoke(Unknown
 Source)
        at 
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:124)
        at 
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:167)
        at 
org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$ResponseOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:176)
        at 
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:79)
        at 
org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:475)
        at 
org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:397)
        at 
org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:81)
        at 
org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:255)
        at org.glassfish.jersey.internal.Errors$1.call(Errors.java:248)
        at org.glassfish.jersey.internal.Errors$1.call(Errors.java:244)
        at org.glassfish.jersey.internal.Errors.process(Errors.java:292)
        at org.glassfish.jersey.internal.Errors.process(Errors.java:274)
        at org.glassfish.jersey.internal.Errors.process(Errors.java:244)
        at 
org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:265)
        at 
org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:234)
        at 
org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:680)
        at 
org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:394)
        at 
org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:346)
        at 
org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:366)
        at 
org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:319)
        at 
org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:205)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at 
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at 
org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61)
        at 
org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108)
        at 
org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137)
        at 
org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
        at 
org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
        at 
org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108)
        at 
org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137)
        at 
org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
        at 
org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
        at 
org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108)
        at 
org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137)
        at 
org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
        at 
org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
        at 
org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:450)
        at 
org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)
        at 
org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
        at 
org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
        at 
org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:387)
        at 
org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)
        at 
org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at 
org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
        at 
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at 
org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
        at 
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at 
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
        at 
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
        at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
        at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)
        at 
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542)
        at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143)
        at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
        at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)
        at 
org.apache.catalina.valves.RemoteIpValve.invoke(RemoteIpValve.java:764)
        at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
        at 
org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374)
        at 
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
        at 
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:888)
        at 
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1597)
        at 
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at 
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
        at java.lang.Thread.run(Thread.java:823)




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