NiFi startup issue

[#1]

Hi all,

Nifi is not starting up and below given is the log

2024-02-22 23:51:14,673 ERROR [pool-2-thread-2] org.apache.nifi.BootstrapListener Failed to process request from Bootstrap due to java.io.IOException: Received invalid Secret Key for request type GET
java.io.IOException: Received invalid Secret Key for request type GET
at org.apache.nifi.BootstrapListener.readRequest(BootstrapListener.java:357)
at org.apache.nifi.BootstrapListener$Listener$1.run(BootstrapListener.java:184)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:572)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
at java.base/java.lang.Thread.run(Thread.java:1583)

[#2]

@sudevDasP, Welcome to our community! To help you get the best possible answer, I have tagged in our NiFi experts @cotopaul @SAMSAL @MattWho  who may be able to assist you further.

Please feel free to provide any additional information or details about your query, and we hope that you will find a satisfactory solution to your question.

[#3]

I suspect one more NiFi service is running on the same host with the same port, It can be checked easily by running "ps -ef | grep nifi"