I am facing the same issue today. For Jenkins agent : TCP port for inbound agent. - fixed 8020 port I used the same like below:
docker run jenkinsci/jnlp-slave -url http://jenkins-master.test:8020 -workDir=/home/jenkins/agent pkRUdAH07VFHhSWb9RAQCRFdWP7j0eIx9jfhRhj5 jenkins-agent but still seeing issue: Feb 17, 2020 2:45:58 PM hudson.remoting.jnlp.Main$CuiListener error SEVERE: http://jenkins-master.test:8020/tcpSlaveAgentListener/ is invalid: 404 Not Found java.io.IOException: http://jenkins-master.test:8020/tcpSlaveAgentListener/ is invalid: 404 Not Found Can you let me know how to fix this, thanks. On Wednesday, April 11, 2018 at 4:12:23 PM UTC+1, john.peterson wrote: > > Legacy systems (3+ years) running 2.111 > > http://jenkins_1:8080/tcpSlaveAgentListener takes us to a page that > simply says Jenkins. This system works. > http://jenkins_2:8080/tcpSlaveAgentListener takes us to a page that > simply says Jenkins. This system works. > http://jenkins_3:8080/tcpSlaveAgentListener takes us to a page that > simply says Jenkins. This system works. > > New system running 2.107 > http://jenkins_4:8080/tcpSlaveAgentListener says Page Not Found > > This is the first time I've had trouble getting a slave to connect. > > I've checked to make sure all of the plugins are there and the same as on > the other systems. > > My VM is a clone from System2. I updated my "slave launch" batch file from > > javaws http://jenkins_2:8080/computer/VM01_Win7x64/slave-agent.jnlp > to > javaws http://jenkins_4:8080/computer/VM01_Win7x64/slave-agent.jnlp > > When I run that command on the slave I get: > > Apr 11, 2018 10:13:33 AM hudson.remoting.jnlp.GuiListener$2 run > SEVERE: http://jenkins_4:8080/tcpSlaveAgentListener/ is invalid: 404 Not > Found > java.io.IOException: http://jenkins_4:8080/tcpSlaveAgentListener/ is > invalid: 404 Not Found > at > org.jenkinsci.remoting.engine.JnlpAgentEndpointResolver.resolve(JnlpAgentEndpointResolver.java:204) > at hudson.remoting.Engine.innerRun(Engine.java:518) > at hudson.remoting.Engine.run(Engine.java:469) > > I am the one that set up all 4 systems. Doing side-by-side comparisons, > everything seems the same. I have entered firewall exceptions (or turned > off). I have the same JAVA on all. I have added exceptions in JAVA as > appropriate. > > The only diagnostics I can find is from CloudBees and only semi-applies to > what I am trying to diagnose. > -- You received this message because you are subscribed to the Google Groups "Jenkins Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/jenkinsci-users/c8dde335-05be-4c94-a365-beea095be132%40googlegroups.com.
