[Hub.start] - Port 4444 is busy, please choose a free port for the hub and specify it using -port option

[Anda Cristea]

Helo,

I have a issue with my command:

java -Djava.net.preferIPv4Stack=true -jar C:\selenium-server-standalone-3.141.59.jar -role hub -host x.x.x.x -port 4444 

and I got the result:

18:45:09.006 INFO [GridLauncherV3.parse] - Selenium server version: 3.141.59, revision: e82be7d358

18:45:09.076 INFO [GridLauncherV3.lambda$buildLaunchers$5] - Launching Selenium Grid hub on port 4444

2020-03-02 18:45:09.429:INFO::main: Logging initialized @584ms to org.seleniumhq.jetty9.util.log.StdErrLog

18:45:09.529 INFO [DefaultGridRegistry.assignRequestToProxy] - Shutting down registry.

18:45:09.534 ERROR [Hub.start] - Port 4444 is busy, please choose a free port for the hub and specify it using -port option

I tried any port and the message is the same.

Can someone give me a hint?

I disable the antivirus, but the same problem.

thanks,

[Anda Cristea]

I solved.

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[⇜Krishnan Mahadevan⇝]

Just curious. What was the problem ? It would be great if you could please elaborate on how it was solved so that, it can help other users as well.

Thanks & Regards
Krishnan Mahadevan

"All the desirable things in life are either illegal, expensive, fattening or in love with someone else!"
My Scribblings @ http://wakened-cognition.blogspot.com/

My Technical Scribblings @ https://rationaleemotions.com/

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[Anda Cristea]

I don't know, but i repeated the steps and bingo....

Thanks

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[viet le]

This is driving me nuts too. I were successfully run it on 1 Windows 2012 server, using config file with -hubConfig my-hub.json
Unfortunately, I need to move it to another server and when start it from command line with command : java.exe -jar e:\selenium\jar\selenium-server-standalone-3.141.59.jar -role hub -hubConfig my-hub.json and got same error messsage, retried several times but not work

Then tried with command :  java.exe -jar e:\selenium\jar\selenium-server-standalone-3.141.59.jar -role hub -port 4444

It's working.

I did netstat to check and pretty sure I had no process occupying port 4444

Log doesn't say anything can get to a clue.

Please let me know if you had any clue to figure it out what's wrong here

Thanks and regards,

v

[viet le]

I managed to solve it, in my case, it's all about the PATH, make sure all things related to PATH are pointed to correct folder, path of java / path of .jar (make sure to call it from folder that saving .jar is safer option like c:\selenium\java -jar c:\selenium\selenium-stand-alone.jar ..)
all path in config.json....

I solved.

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