Oleg Zhurakousky created NIFI-1523:
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Summary: Improve exception message when trying to connect to
output port that is not started.
Key: NIFI-1523
URL: https://issues.apache.org/jira/browse/NIFI-1523
Project: Apache NiFi
Issue Type: Improvement
Reporter: Oleg Zhurakousky
Priority: Trivial
Fix For: 0.6.0
Basically what I have now is a simple flow where GenerateFlowFile sends to
output Port named _toSpark_. When trying to connect to port which is not
started I see the following exception message:
{code}
org.apache.nifi.remote.exception.PortNotRunningException:
Peer[url=nifi://localhost:8888,CLOSED] indicates that port
35c61f87-6a57-4aab-ac77-34006fc7ab68 is not running
at
org.apache.nifi.remote.client.socket.EndpointConnectionPool.getEndpointConnection(EndpointConnectionPool.java:351)
at
org.apache.nifi.remote.client.socket.SocketClient.createTransaction(SocketClient.java:129)
at
org.apache.nifi.spark.NiFiReceiver$ReceiveRunnable.run(NiFiReceiver.java:149)
at java.lang.Thread.run(Thread.java:745)
{code}
Since port's generated id (35c61f87-6a57-4aab-ac77-34006fc7ab68) is not
immediately visible from the UI it could be more difficult then it need to be
to track it in a multi port system.
So adding port name to the message would help
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