[jira] [Created] (NIFI-7491) Update parameter context with unchanged parameter results in an exception

["Mathias Krueger (Jira)" <ji...@apache.org>]

Mathias Krueger created NIFI-7491:
-------------------------------------

             Summary: Update parameter context with unchanged parameter results in an exception
                 Key: NIFI-7491
                 URL: https://issues.apache.org/jira/browse/NIFI-7491
             Project: Apache NiFi
          Issue Type: Bug
          Components: Core Framework
    Affects Versions: 1.11.4
            Reporter: Mathias Krueger


If a parameter context is updated and it contains a parameter that has not been changed by the user the update results in the following exception in the logfile.
{code:java}
java.lang.IllegalStateException: Cannot update Parameter Context testcontext because it has Parameters that are being referenced by a Processor that is running. at org.apache.nifi.web.dao.impl.StandardParameterContextDAO.verifyParameterUpdate(StandardParameterContextDAO.java:194) at org.apache.nifi.web.dao.impl.StandardParameterContextDAO.verifyUpdate(StandardParameterContextDAO.java:153) at org.apache.nifi.web.dao.impl.StandardParameterContextDAO$$FastClassBySpringCGLIB$$7099e091.invoke(<generated>) at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:736) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:671) at org.apache.nifi.web.dao.impl.StandardParameterContextDAO$$EnhancerBySpringCGLIB$$96a5318c.verifyUpdate(<generated>) at org.apache.nifi.web.StandardNiFiServiceFacade.verifyUpdateParameterContext(StandardNiFiServiceFacade.java:1004) at org.apache.nifi.web.StandardNiFiServiceFacade$$FastClassBySpringCGLIB$$358780e0.invoke(<generated>) at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:736) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:84) at org.apache.nifi.web.NiFiServiceFacadeLock.proceedWithReadLock(NiFiServiceFacadeLock.java:161) at org.apache.nifi.web.NiFiServiceFacadeLock.verifyLock(NiFiServiceFacadeLock.java:138) at jdk.internal.reflect.GeneratedMethodAccessor339.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:627) at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:616) at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:70) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:671) at org.apache.nifi.web.StandardNiFiServiceFacade$$EnhancerBySpringCGLIB$$a1cdcf58.verifyUpdateParameterContext(<generated>) at org.apache.nifi.web.api.ParameterContextResource.performParameterContextUpdate(ParameterContextResource.java:931) at org.apache.nifi.web.api.ParameterContextResource.updateParameterContext(ParameterContextResource.java:867) at org.apache.nifi.web.api.ParameterContextResource.lambda$submitUpdateRequest$17(ParameterContextResource.java:804) at org.apache.nifi.web.api.concurrent.AsyncRequestManager$2.run(AsyncRequestManager.java:117) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at java.base/java.lang.Thread.run(Thread.java:834){code}
The user gets the following error message in UI: 
{code:java}
Unable to complete parameter context update request: Failed to update Parameter Context due to java.lang.IllegalStateException: Cannot update Parameter Context testcontext because it has Parameters that are being referenced by a Processor that is running.{code}
 

 

If the paramter contains changes, the update process runs as expected.

So the expected behavior would be to do the update even if the paramater didnt change, or to do no updates and complete the update request without an error message.

 

this is reproducible with the folowing steps:
 # edit a paramater context that contains parameters that are bound to running processors.
 # change the value of the parameter and submit the Edit Parameter dialog
 # reopen the Edit Parameter dialog and change the value back to the original value and submit the dialog
 # submit the Edit Parameter Context dialog

 


  



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