Hi. Java is attempting to connect to X or whatever and is puking because it doesn't have sufficient permissions. Here's a fix:
Jenkins > Manage Jenkins > Manage Nodes > (select the node with the error) > Configure > Launch Method: "Launch slave agents on Unix machines via SSH" > click "Advanced" then under "JVM Options" include the java directive to run headless: *-Djava.awt.headless=true* On Saturday, October 27, 2012 5:30:55 PM UTC-7, Alex Rønne Petersen wrote: > > Hi folks, > > From the 1.487 changelog: > > * JNLP Slave agent on OS X can install itself as a launchd service. > > I believe this is the cause of the exceptions I'm now seeing when my > master node attempts to connect to an OS X slave: > > java.io.IOException: Remote call on osx-x86 failed > at hudson.remoting.Channel.call(Channel.java:673) > at org.jenkinsci.modules.launchd_slave_installer. > ComputerListenerImpl.onOnline(ComputerListenerImpl.java:30) > at hudson.slaves.SlaveComputer.setChannel(SlaveComputer.java:396) > at hudson.slaves.SlaveComputer.setChannel(SlaveComputer.java:317) > at hudson.plugins.sshslaves.SSHLauncher.startSlave( > SSHLauncher.java:454) > at hudson.plugins.sshslaves.SSHLauncher.launch( > SSHLauncher.java:293) > at hudson.slaves.SlaveComputer$1.call(SlaveComputer.java:200) > at java.util.concurrent.FutureTask$Sync.innerRun( > FutureTask.java:334) > at java.util.concurrent.FutureTask.run(FutureTask.java:166) > at java.util.concurrent.ThreadPoolExecutor.runWorker( > ThreadPoolExecutor.java:1110) > at java.util.concurrent.ThreadPoolExecutor$Worker.run( > ThreadPoolExecutor.java:603) > at java.lang.Thread.run(Thread.java:679) > Caused by: java.lang.InternalError: Can't connect to window server - > not enough permissions. > at java.lang.ClassLoader$NativeLibrary.load(Native Method) > at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1827) > at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1724) > at java.lang.Runtime.loadLibrary0(Runtime.java:823) > at java.lang.System.loadLibrary(System.java:1045) > at sun.security.action.LoadLibraryAction.run( > LoadLibraryAction.java:50) > at java.security.AccessController.doPrivileged(Native Method) > at sun.awt.NativeLibLoader.loadLibraries(NativeLibLoader.java:38) > at sun.awt.DebugHelper.<clinit>(DebugHelper.java:29) > at java.awt.Component.<clinit>(Component.java:566) > at org.jenkinsci.modules.launchd_slave_installer. > LaunchdSlaveInstaller.call(LaunchdSlaveInstaller.java:53) > at org.jenkinsci.modules.launchd_slave_installer. > LaunchdSlaveInstaller.call(LaunchdSlaveInstaller.java:35) > at hudson.remoting.UserRequest.perform(UserRequest.java:118) > at hudson.remoting.UserRequest.perform(UserRequest.java:48) > at hudson.remoting.Request$2.run(Request.java:326) > at hudson.remoting.InterceptingExecutorService$1.call( > InterceptingExecutorService.java:72) > at java.util.concurrent.FutureTask$Sync.innerRun( > FutureTask.java:303) > at java.util.concurrent.FutureTask.run(FutureTask.java:138) > at java.util.concurrent.ThreadPoolExecutor$Worker. > runTask(ThreadPoolExecutor.java:886) > at java.util.concurrent.ThreadPoolExecutor$Worker.run( > ThreadPoolExecutor.java:908) > at java.lang.Thread.run(Thread.java:680) > [10/27/12 20:47:14] [SSH] Connection closed. > ERROR: Connection terminated > java.io.IOException: Unexpected termination of the channel > at hudson.remoting.SynchronousCommandTransport$ReaderThread.run( > SynchronousCommandTransport.java:50) > Caused by: java.io.EOFException > at java.io.ObjectInputStream$BlockDataInputStream.peekByte( > ObjectInputStream.java:2570) > at java.io.ObjectInputStream.readObject0(ObjectInputStream. > java:1314) > at java.io.ObjectInputStream.readObject(ObjectInputStream. > java:368) > at hudson.remoting.Command.readFrom(Command.java:90) > at hudson.remoting.ClassicCommandTransport.read( > ClassicCommandTransport.java:59) > at hudson.remoting.SynchronousCommandTransport$ReaderThread.run( > SynchronousCommandTransport.java:48) > ERROR: [10/27/12 20:47:14] slave agent was terminated > java.io.IOException: Unexpected termination of the channel > at hudson.remoting.SynchronousCommandTransport$ReaderThread.run( > SynchronousCommandTransport.java:50) > Caused by: java.io.EOFException > at java.io.ObjectInputStream$BlockDataInputStream.peekByte( > ObjectInputStream.java:2570) > at java.io.ObjectInputStream.readObject0(ObjectInputStream. > java:1314) > at java.io.ObjectInputStream.readObject(ObjectInputStream. > java:368) > at hudson.remoting.Command.readFrom(Command.java:90) > at hudson.remoting.ClassicCommandTransport.read( > ClassicCommandTransport.java:59) > at hudson.remoting.SynchronousCommandTransport$ReaderThread.run( > SynchronousCommandTransport.java:48) > > Can I somehow disable this? I don't want it to be installed as a > launchd service and, as seen in the exception stack trace, it can't > actually start the installer. The machine is not a regular OS X > machine but an Xserve, so this GUI business is a bad idea. > > Thanks in advance, > Alex >
