Uploaded image for project: 'Jenkins'
  1. Jenkins
  2. JENKINS-66066

Windows agent can not connect to Jenkins master

    XMLWordPrintable

    Details

    • Type: Bug
    • Status: Open (View Workflow)
    • Priority: Major
    • Resolution: Unresolved
    • Component/s: core
    • Labels:
      None
    • Similar Issues:

      Description

      After upgrade Jenkins master to 2.289.2, Windows agent can't connect to the master. On the master, the TCP port for jnlp is fixed port 8888, the port is open to the Windows machine.

      When I run this command "java -jarĀ agent.jar -jnlpUrl https://jenkins-master/computer/test-windows-agent/jenkins-agent.jnlp -secret *** -workDir "c:\jenkins"" on the Windows machine, and run a 'tcpdump" command on the Jenkins master, I saw the tcp packet coming in.

      A "netstat" command on the Jenkins master shows the java app is listening on port 8888.

      The result of the launch command from above is as following, Java 8 is in use on both master and the Windows machine.

      Jul 06, 2021 8:10:07 AM org.jenkinsci.remoting.engine.WorkDirManager initializeWorkDir
      INFO: Using c:\jenkins\remoting as a remoting work directory
      Jul 06, 2021 8:10:07 AM org.jenkinsci.remoting.engine.WorkDirManager setupLogging
      INFO: Both error and output logs will be printed to c:\jenkins\remoting
      Jul 06, 2021 8:10:10 AM hudson.remoting.jnlp.Main createEngine
      INFO: Setting up agent: bella-test-windows-agent
      Jul 06, 2021 8:10:10 AM hudson.remoting.jnlp.Main$CuiListener <init>
      INFO: Jenkins agent is running in headless mode.
      Jul 06, 2021 8:10:10 AM hudson.remoting.Engine startEngine
      INFO: Using Remoting version: 4.7
      Jul 06, 2021 8:10:10 AM org.jenkinsci.remoting.engine.WorkDirManager initializeWorkDir
      INFO: Using c:\jenkins\remoting as a remoting work directory
      Jul 06, 2021 8:10:11 AM hudson.remoting.jnlp.Main$CuiListener error
      SEVERE: Handshake error.
      io.jenkins.remoting.shaded.javax.websocket.DeploymentException: Handshake error.
              at io.jenkins.remoting.shaded.org.glassfish.tyrus.client.ClientManager$3$1.run(ClientManager.java:658)
              at io.jenkins.remoting.shaded.org.glassfish.tyrus.client.ClientManager$3.run(ClientManager.java:696)
              at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
              at java.util.concurrent.FutureTask.run(Unknown Source)
              at io.jenkins.remoting.shaded.org.glassfish.tyrus.client.ClientManager$SameThreadExecutorService.execute(ClientManager.java:849)
              at java.util.concurrent.AbstractExecutorService.submit(Unknown Source)
              at io.jenkins.remoting.shaded.org.glassfish.tyrus.client.ClientManager.connectToServer(ClientManager.java:493)
              at io.jenkins.remoting.shaded.org.glassfish.tyrus.client.ClientManager.connectToServer(ClientManager.java:337)
              at hudson.remoting.Engine.runWebSocket(Engine.java:623)
              at hudson.remoting.Engine.run(Engine.java:470)
      Caused by: io.jenkins.remoting.shaded.org.glassfish.tyrus.core.HandshakeException: Response code was not 101: 400.
              at io.jenkins.remoting.shaded.org.glassfish.tyrus.client.TyrusClientEngine.processResponse(TyrusClientEngine.java:299)
              at io.jenkins.remoting.shaded.org.glassfish.tyrus.container.jdk.client.ClientFilter.processRead(ClientFilter.java:167)
              at io.jenkins.remoting.shaded.org.glassfish.tyrus.container.jdk.client.Filter.onRead(Filter.java:111)
              at io.jenkins.remoting.shaded.org.glassfish.tyrus.container.jdk.client.Filter.onRead(Filter.java:113)
              at io.jenkins.remoting.shaded.org.glassfish.tyrus.container.jdk.client.SslFilter.handleRead(SslFilter.java:383)
              at io.jenkins.remoting.shaded.org.glassfish.tyrus.container.jdk.client.SslFilter.processRead(SslFilter.java:345)
              at io.jenkins.remoting.shaded.org.glassfish.tyrus.container.jdk.client.Filter.onRead(Filter.java:111)
              at io.jenkins.remoting.shaded.org.glassfish.tyrus.container.jdk.client.Filter.onRead(Filter.java:113)
              at io.jenkins.remoting.shaded.org.glassfish.tyrus.container.jdk.client.TransportFilter$4.completed(TransportFilter.java:294)
              at io.jenkins.remoting.shaded.org.glassfish.tyrus.container.jdk.client.TransportFilter$4.completed(TransportFilter.java:278)
              at sun.nio.ch.Invoker.invokeUnchecked(Unknown Source)
              at sun.nio.ch.Invoker$2.run(Unknown Source)
              at sun.nio.ch.AsynchronousChannelGroupImpl$1.run(Unknown Source)
              at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
              at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
              at java.lang.Thread.run(Unknown Source)
      

      Please advise what else I can do to troubleshoot. Thanks.

        Attachments

          Activity

          There are no comments yet on this issue.

            People

            Assignee:
            Unassigned Unassigned
            Reporter:
            vmlyr_bellaxie Bella
            Votes:
            0 Vote for this issue
            Watchers:
            1 Start watching this issue

              Dates

              Created:
              Updated: