Did you upgrade the agent.jar that is used on your Jenkins agents? Most connections launched from an external process (JNLP) will keep a local copy of the agent.jar file. That local copy may be outdated and need an update. Especially in a jump of 50 or more versions. That is a one year jump in Jenkins releases, likely there have been remoting changes in that time.
The VersionColumn plugin can add a check to your Jenkins master which will complain when agent jar files are outdated. On Wed, Mar 18, 2020 at 2:29 AM JuBo <[email protected]> wrote: > We run Jenkins 2.107.2 / 2.107.3 on Debian Linux server and >50 agents > with linux, Win7, Win10 connected via JNLP. > > Sometimes we use the possibility to cancel running jobs interactively > without problems. > When upgrading the Jenkins server to 2.150.3 (and 2.176.2 and more recent > releases) and the agent jars appropriately, we get trouble. > After canceling a job execution, the agent running the job looses the > connection to the master. > All agent are connected via JNLP. > > Anyone else observing similar problems? > I do not believe that we are the only users of JNLP, but do not understand > why nobody else reports such a problem. > At least I find no similar reports. > > Any ideas where to search, how to work around or solve the issue? > Its blocking us from upgrading Jenkins. > > Thanks and Best Regards, > Jürgen > > -- > 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/56664cce-9c44-4d6a-a32a-ab449bce7a86%40googlegroups.com > <https://groups.google.com/d/msgid/jenkinsci-users/56664cce-9c44-4d6a-a32a-ab449bce7a86%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- 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/CAO49JtFfx0QsnwA_8fVL-30qv5iavVq22ZFKwDC1kPsYdZgmhg%40mail.gmail.com.
