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  1. Jenkins
  2. JENKINS-58221

Swarm cannot connect to Jenkins Master provided port:50000 is not reachable

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    • Icon: Bug Bug
    • Resolution: Not A Defect
    • Icon: Major Major
    • swarm-plugin
    • None
    • jenkins version: 2.182
      swarm plugin version: 3.17
      Java Version on slave and master is open JDK 1.8.0_201

      Hello,

      I am currently running Jenkins 2.138.3 with plugin version 3.12, I am attempting to upgrade to Jenkins 2.182 and plugin 3.17.

       

      Looks like I am getting an error that it can't connect to port 50000 (the fixed agent port). I attached the verbose logs.

       

      When I do a curl from the slave to the master I see 50000 is available.

      [ec2-user@ip-10-0-6-121 ~]$ curl 10.0.7.19:50000
Jenkins-Agent-Protocols: JNLP4-connect, Ping
Jenkins-Version: 2.182
Jenkins-Session: 02bf8ba3
Client: 10.0.6.121
Server: 10.0.7.19
Remoting-Minimum-Version: 3.4

      Any ideas would be appreciated, I am currently just downgrading Jenkins to previous versions to see if that will help.

        1. jenkins_swarm_verbose_logs.txt
          29 kB

            Unassigned Unassigned
            tactis Joey Khashab
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              Created:
              Updated:
              Resolved: