Kubernetes- Jenkins slave node shows offline

0 votes

When i do the following:

Aug 16, 2016 6:56:38 AM hudson.remoting.jnlp.Main createEngine
INFO: Setting up slave: jnlp-slave-1c45182a61
Aug 16, 2016 6:56:38 AM hudson.remoting.jnlp.Main$CuiListener <init>
INFO: Jenkins agent is running in headless mode.
Aug 16, 2016 6:56:38 AM hudson.remoting.jnlp.Main$CuiListener status
INFO: Locating server among [http://jenkins_server_ip:8080]
Aug 16, 2016 6:56:38 AM hudson.remoting.jnlp.Main$CuiListener error
SEVERE: http://jenkins_server_ip:8080/tcpSlaveAgentListener/ is invalid: 404 Not Found
java.lang.Exception: http://jenkins_server_ip:8080/tcpSlaveAgentListener/ is invalid: 404 Not Found
        at hudson.remoting.Engine.run(Engine.java:215)

I get the following error:

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<title>Error 404 Not Found</title>
</head>
<body><h2>HTTP ERROR 404</h2>
<p>Problem accessing /tcpSlaveAgentListener/. Reason:
<pre>    Not Found</pre></p><hr><i><small>Powered by Jetty://</small></i><hr/>
</body>
</html>

Sep 5, 2018 in Kubernetes by Hannah
• 18,540 points
4,621 views

1 answer to this question.

0 votes
TCP port for JNLP slave agent should not be disabled.

To enable it follow these steps:

1) goto Manage jenkins

2) enable the "TCP port for JNLP slave agent"
answered Sep 5, 2018 by Kalgi
• 52,350 points

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