question Apache Nifi: ListenHTTP - Address already in use Exception in Support Questions

Apache Nifi: ListenHTTP - Address already in use Exception

Jagapriyan — Mon, 07 Nov 2022 09:20:54 GMT

I'm trying to run listenHTTP processor for listening to a webhook notification.

I'm relatively new to this processor. When I initialize, I observe java.net.bind exception. Address already in use.

nifi url: http://localhost:8080/nifi/ (it has a public IP but we use NATing)

Existing configuration

Error Observed

ckumar — Mon, 07 Nov 2022 12:16:28 GMT

Before starting processor ListenHHTP , please check and make sure port 8888 is not used by any other process at host where nifi service is running.

You can use netstat command to check and confirm.

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Thank you,

Chandan

Jagapriyan — Mon, 07 Nov 2022 12:47:46 GMT

Yes I have verified. The port is not being used. However nifi throws the error.