Jenkins Slave "Connection Refused"

Question

I'm trying to set up a Master Slave system with Jenkins. I created a new node on Jenkins and set it up. However, when I try to start the Slave Agent on the slave computer, it always throws an error, regardless of the method I use (web start or command line):

java.io.IOException: Failed to connect to (myurl):(port)

(myurl) and (port) are placeholders.

...

Caused  by: java.net.ConnectException: Connection refused

There is no firewall running, the port is open, and the master is indeed functioning properly. Any help will be greatly appreciated!

Thank you!

Looks like the placeholders were not evaluated correctly? Are you using the correct syntax? — mrkernelpanic, Jun 08 '16 at 06:59
Yup, I used the exact syntax that Jenkins told me to. I also tried the Web start so there's probably nothing wrong with the code itself — Aman Dureja, Jun 08 '16 at 12:53

RotS · Answer 1 · 2017-06-23T09:13:04.827

I encountered the same error message and in my case the ssh server on the slave was just stopped.

I went on the slave server and checked the ssh status:

service ssh status
 * sshd is not running

I started ssh:

/etc/init.d/ssh start
service ssh status
 * sshd is running

Then I was able to restart the connection to the slave with jenkins.

You can also check the following point: the public key of your jenkins server ( /var/jenkins_home/.ssh/id_rsa.pub ) should be listed among the authorized keys of your slave server ( /root/.ssh/authorized_keys ).

Jenkins Slave "Connection Refused"

1 Answers1