turcsanyip commented on PR #6225:
URL: https://github.com/apache/nifi/pull/6225#issuecomment-1197699462
@nandorsoma Thanks for adding v5 protocol support to MQTT processors!
I started to review / test this PR and found that the v5 client cannot stop
properly:
```
2022-07-28 07:53:40,084 ERROR [Timer-Driven Process Thread-4]
org.apache.nifi.util.ReflectionUtils Failed while invoking annotated method
'public void
org.apache.nifi.processors.mqtt.ConsumeMQTT.onUnscheduled(org.apache.nifi.processor.ProcessContext)'
with arguments '[org.apache.nifi.processor.StandardProcessContext@5f360d4e]'.
com.hivemq.client.mqtt.exceptions.MqttClientStateException: MQTT client is
not connected.
at
com.hivemq.client.internal.mqtt.MqttBlockingClient.disconnect(MqttBlockingClient.java:195)
at
com.hivemq.client.internal.mqtt.MqttBlockingClient.disconnect(MqttBlockingClient.java:186)
at
org.apache.nifi.processors.mqtt.paho.HiveMqV5ClientAdapter.close(HiveMqV5ClientAdapter.java:99)
at
org.apache.nifi.processors.mqtt.common.AbstractMQTTProcessor.onStopped(AbstractMQTTProcessor.java:292)
at
org.apache.nifi.processors.mqtt.ConsumeMQTT.onUnscheduled(ConsumeMQTT.java:348)
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.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotations(ReflectionUtils.java:145)
at
org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotations(ReflectionUtils.java:133)
at
org.apache.nifi.util.ReflectionUtils.quietlyInvokeMethodsWithAnnotations(ReflectionUtils.java:316)
at
org.apache.nifi.util.ReflectionUtils.quietlyInvokeMethodsWithAnnotation(ReflectionUtils.java:93)
at
org.apache.nifi.controller.StandardProcessorNode$2.run(StandardProcessorNode.java:1877)
at org.apache.nifi.engine.FlowEngine$2.run(FlowEngine.java:110)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
```
Could you please fix it first? Due to this error, the processor cannot
create a new client and NiFi restart needed.
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