ERROR: Connection is not established! java.lang.IllegalStateException: Connection is not established!

0 votes

Hello everyone,

I configured all the settings to create Master Slave model in Jenkins. But my Jenkins not able to launch one new node. It shows me the below error.

ERROR: Connection is not established!
java.lang.IllegalStateException: Connection is not established!
at com.trilead.ssh2.Connection.getRemainingAuthMethods(Connection.java:988)
at com.cloudbees.jenkins.plugins.sshcredentials.impl.TrileadSSHPasswordAuthenticator.canAuthenticate(TrileadSSHPasswordAuthenticator.java:82)
at com.cloudbees.jenkins.plugins.sshcredentials.SSHAuthenticator.newInstance(SSHAuthenticator.java:218)
at com.cloudbees.jenkins.plugins.sshcredentials.SSHAuthenticator.newInstance(SSHAuthenticator.java:171)
at hudson.plugins.sshslaves.SSHLauncher.openConnection(SSHLauncher.java:863)
at hudson.plugins.sshslaves.SSHLauncher$1.call(SSHLauncher.java:435)
at hudson.plugins.sshslaves.SSHLauncher$1.call(SSHLauncher.java:422)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
[05/28/20 14:26:20] Launch failed - cleaning up connection
[05/28/20 14:26:20] [SSH] Connection closed.

How can I avoid this error?

May 29 in Jenkins by akhtar
• 24,830 points
246 views

1 answer to this question.

0 votes

Hi@akhtar,

This error may occur because of network connectivity. So try to update your DNS server manually. Also make sure you have created remote directory in your node.

answered May 29 by MD
• 56,020 points

Related Questions In Jenkins

0 votes
1 answer
0 votes
5 answers
0 votes
1 answer
0 votes
1 answer
+15 votes
2 answers

Git management technique when there are multiple customers and need multiple customization?

Consider this - In 'extended' Git-Flow, (Git-Multi-Flow, ...READ MORE

answered Mar 26, 2018 in DevOps & Agile by DragonLord999
• 8,450 points
675 views
+2 votes
1 answer
0 votes
1 answer