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Bug
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Resolution: Fixed
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Blocker
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Jenkins 2.220 on Debian 10.3 x64 (jenkins.io Debian repo with Debian default JRE) with Swarm plug-in modules 3.17
swarm-client 3.17 on Windows 10, AdoptOpenJDK 8, specified master explicitly
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3.18
Slave
Exec:
java.exe -Xrs -jar "%BASE%\swarm-client-3.17.jar" -mode exclusive -name *** -labels *** -executors 1 -master [http://***] -username *** -password *** -fsroot "%BASE%" -deleteExistingClients -labelsFile "%BASE%\labels"
Log:
Feb 10, 2020 10:25:50 AM hudson.plugins.swarm.SwarmClient discoverFromMasterUrl SEVERE: Failed to fetch slave info from Jenkins, HTTP response code: 500 Feb 10, 2020 10:25:50 AM hudson.plugins.swarm.Client run SEVERE: RetryException occurred hudson.plugins.swarm.RetryException: Failed to fetch slave info from Jenkins, HTTP response code: 500 at hudson.plugins.swarm.SwarmClient.discoverFromMasterUrl(SwarmClient.java:248) at hudson.plugins.swarm.Client.run(Client.java:130) at hudson.plugins.swarm.Client.main(Client.java:104)Feb 10, 2020 10:25:50 AM hudson.plugins.swarm.Client run INFO: Retrying in 10 seconds
Master
Log:
2020-02-10 09:50:32.698+0000 [id=276] WARNING o.e.j.s.h.ContextHandler$Context#log: Error while serving http://***/plugin/swarm/slaveInfo java.lang.NoClassDefFoundError: hudson/UDPBroadcastFragment at hudson.plugins.swarm.PluginImpl.getSwarmSecret(PluginImpl.java:262) at hudson.plugins.swarm.PluginImpl.doSlaveInfo(PluginImpl.java:272) at java.base/java.lang.invoke.MethodHandle.invokeWithArguments(MethodHandle.java:710) at org.kohsuke.stapler.Function$MethodFunction.invoke(Function.java:396) Caused: java.lang.reflect.InvocationTargetException at org.kohsuke.stapler.Function$MethodFunction.invoke(Function.java:400) at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:408) at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:212) at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:145) at org.kohsuke.stapler.MetaClass$11.doDispatch(MetaClass.java:535) at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:58) at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:747) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:878) at org.kohsuke.stapler.MetaClass$4.doDispatch(MetaClass.java:280) at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:58) at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:747) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:878) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:676) at org.kohsuke.stapler.Stapler.service(Stapler.java:238) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:755) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1617) [...]
The master is unable to load a class: UDPBroadcastFragment is now missing with jenkins 2.220, which got removed in jenkins core with f10d9f95fc ("JENKINS-60913 Remove network discovery services (#4460)").
- is caused by
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JENKINS-60913 Remove network discovery services
- Resolved
- links to