[JENKINS-24319] Windows slave dying during build - unsatisfied link error

[timja]

Windows slaved builds fail with the following error on the master:

11:56:20 FATAL: hudson.remoting.RequestAbortedException: java.io.IOException: Failed to abort
11:56:20 hudson.remoting.RequestAbortedException: hudson.remoting.RequestAbortedException: java.io.IOException: Failed to abort
11:56:20 at hudson.remoting.RequestAbortedException.wrapForRethrow(RequestAbortedException.java:41)
11:56:20 at hudson.remoting.RequestAbortedException.wrapForRethrow(RequestAbortedException.java:34)
11:56:20 at hudson.remoting.Request.call(Request.java:174)
11:56:20 at hudson.remoting.Channel.call(Channel.java:739)
11:56:20 at hudson.remoting.RemoteInvocationHandler.invoke(RemoteInvocationHandler.java:168)
11:56:20 at com.sun.proxy.$Proxy58.join(Unknown Source)
11:56:20 at hudson.Launcher$RemoteLauncher$ProcImpl.join(Launcher.java:956)
11:56:20 at hudson.tasks.CommandInterpreter.join(CommandInterpreter.java:137)
11:56:20 at hudson.tasks.CommandInterpreter.perform(CommandInterpreter.java:97)
11:56:20 at hudson.tasks.CommandInterpreter.perform(CommandInterpreter.java:66)
11:56:20 at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20)
11:56:20 at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:772)
11:56:20 at hudson.model.Build$BuildExecution.build(Build.java:199)
11:56:20 at hudson.model.Build$BuildExecution.doRun(Build.java:160)
11:56:20 at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:535)
11:56:20 at hudson.model.Run.execute(Run.java:1740)
11:56:20 at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
11:56:20 at hudson.model.ResourceController.execute(ResourceController.java:88)
11:56:20 at hudson.model.Executor.run(Executor.java:234)
11:56:20 Caused by: hudson.remoting.RequestAbortedException: java.io.IOException: Failed to abort
11:56:20 at hudson.remoting.Request.abort(Request.java:299)
11:56:20 at hudson.remoting.Channel.terminate(Channel.java:802)
11:56:20 at hudson.remoting.Channel$2.terminate(Channel.java:483)
11:56:20 at hudson.remoting.AbstractByteArrayCommandTransport$1.terminate(AbstractByteArrayCommandTransport.java:72)
11:56:20 at org.jenkinsci.remoting.nio.NioChannelHub$NioTransport.abort(NioChannelHub.java:195)
11:56:20 at org.jenkinsci.remoting.nio.NioChannelHub.run(NioChannelHub.java:581)
11:56:20 at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:28)
11:56:20 at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:439)
11:56:20 at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
11:56:20 at java.util.concurrent.FutureTask.run(FutureTask.java:138)
11:56:20 at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
11:56:20 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
11:56:20 at java.lang.Thread.run(Thread.java:695)
11:56:20 Caused by: java.io.IOException: Failed to abort
11:56:20 ... 9 more
11:56:20 Caused by: java.io.IOException: Connection reset by peer
11:56:20 at sun.nio.ch.FileDispatcher.read0(Native Method)
11:56:20 at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:21)
11:56:20 at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:198)
11:56:20 at sun.nio.ch.IOUtil.read(IOUtil.java:171)
11:56:20 at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:245)
11:56:20 at org.jenkinsci.remoting.nio.FifoBuffer$Pointer.receive(FifoBuffer.java:136)
11:56:20 at org.jenkinsci.remoting.nio.FifoBuffer.receive(FifoBuffer.java:306)
11:56:20 at org.jenkinsci.remoting.nio.NioChannelHub.run(NioChannelHub.java:514)
11:56:20 ... 7 more

And the following warning on the slave agent:

Aug 19, 2014 11:51:09 AM hudson.util.ProcessTree get
WARNING: Failed to load winp. Reverting to the default
java.lang.UnsatisfiedLinkError: Native Library C:\Users\BuildWin\.jenkins\cache\ jars\12\winp.x64.FEF9CB80B43534DCA303AC36686258E8.dll already loaded in another classloader
at java.lang.ClassLoader.loadLibrary1(ClassLoader.java:1931)
at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1890)
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1851)
at java.lang.Runtime.load0(Runtime.java:795)
at java.lang.System.load(System.java:1062)
at org.jvnet.winp.Native.loadDll(Native.java:189)
at org.jvnet.winp.Native.load(Native.java:121)
at org.jvnet.winp.Native.(Native.java:55)
at org.jvnet.winp.WinProcess.enableDebugPrivilege(WinProcess.java:200)
at hudson.util.ProcessTree$Windows.(ProcessTree.java:469)
at hudson.util.ProcessTree.get(ProcessTree.java:328)
at hudson.Launcher$RemoteLauncher$KillTask.call(Launcher.java:930)
at hudson.Launcher$RemoteLauncher$KillTask.call(Launcher.java:921)
at hudson.remoting.UserRequest.perform(UserRequest.java:118)
at hudson.remoting.UserRequest.perform(UserRequest.java:48)
at hudson.remoting.Request$2.run(Request.java:328)
at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecut orService.java:72)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor. java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor .java:615)
at hudson.remoting.Engine$1$1.run(Engine.java:63)
at java.lang.Thread.run(Thread.java:745)

Currently restarting the slave agent fixes the issue for a few builds but after about an hour the builds start failing again. It doesn't seem to be a memory issue as I've set the Xmx2048m parameter and the monitoring plugin seems fairly normal in it's reports.

---

Originally reported by andywalker, imported from: Windows slave dying during build - unsatisfied link error

• assignee: oleg_nenashev
• status: Reopened
• priority: Critical
• resolution: Unresolved
• imported: 2022/01/10

[timja]

tzedar:

We saw the same issue last night...
The slave eventually restarted itself but we lost a test in the process.
Only difference is that our master is also a windows machine.

[timja]

cnagaraju:

any update on this ? seeing the same issue on a Windows VM slave connecting to windows master

[timja]

oleg_nenashev:

Closing it as a duplicate of JENKINS-20913, because it is likely a root cause of this failure. If the issue still happens after the upgrade to 2.32.1, please reopen it

[timja]

remik:

Recently we have added second Windows agent to our Windows master and immediately started to observe this issue. No such problems on the first Windows agent that is running here for months. Both systems are Microsoft Windows [Version 10.0.18363.720].

This is sanitized log fragment from the agent:

mar 31, 2020 10:00:57 PM org.jvnet.winp.Native loadByUrl
 WARNING: Failed to load DLL from static location
 java.lang.UnsatisfiedLinkError: Native Library J:\Jenkins\remoting\jarCache\44\winp.x64.BFFE30B3B50581290B1866EF8D48C609.dll already loaded in another classloader
 at java.lang.ClassLoader.loadLibrary0(Unknown Source)
 at java.lang.ClassLoader.loadLibrary(Unknown Source)
 at java.lang.Runtime.load0(Unknown Source)
 at java.lang.System.load(Unknown Source)
 at org.jvnet.winp.Native.loadDll(Native.java:242)
 at org.jvnet.winp.Native.loadByUrl(Native.java:162)
 at org.jvnet.winp.Native.load(Native.java:124)
 at org.jvnet.winp.Native.(Native.java:93)
 at org.jvnet.winp.WinProcess.enableDebugPrivilege(WinProcess.java:245)
 at hudson.util.ProcessTree$Windows.(ProcessTree.java:701)
 at hudson.util.ProcessTree.get(ProcessTree.java:447)
 at hudson.Launcher$RemoteLauncher$KillTask.call(Launcher.java:1100)
 at hudson.Launcher$RemoteLauncher$KillTask.call(Launcher.java:1091)
 at hudson.remoting.UserRequest.perform(UserRequest.java:211)
 at hudson.remoting.UserRequest.perform(UserRequest.java:54)
 at hudson.remoting.Request$2.run(Request.java:369)
 at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
 at java.util.concurrent.FutureTask.run(Unknown Source)
 at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
 at hudson.remoting.Engine$1.lambda$newThread$0(Engine.java:97)
 at java.lang.Thread.run(Unknown Source)

kwi 01, 2020 12:25:05 AM hudson.remoting.jnlp.Main$CuiListener status
 INFO: Terminated
 kwi 01, 2020 12:25:05 AM hudson.Launcher$RemoteLaunchCallable$1 join
 INFO: Failed to synchronize IO streams on the channel hudson.remoting.Channel@1aa3bc97:JNLP4-connect connection to jenkins./:6666
 hudson.remoting.ChannelClosedException: Channel "hudson.remoting.Channel@1aa3bc97:JNLP4-connect connection to jenkins./:6666": Remote call on JNLP4-connect connection to jenkins./:6666 failed. The channel is closing down or has closed down
 at hudson.remoting.Channel.call(Channel.java:948)
 at hudson.remoting.Channel.syncIO(Channel.java:1683)
 at hudson.Launcher$RemoteLaunchCallable$1.join(Launcher.java:1328)
 at sun.reflect.GeneratedMethodAccessor49.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
 at java.lang.reflect.Method.invoke(Unknown Source)
 at hudson.remoting.RemoteInvocationHandler$RPCRequest.perform(RemoteInvocationHandler.java:929)
 at hudson.remoting.RemoteInvocationHandler$RPCRequest.call(RemoteInvocationHandler.java:903)
 at hudson.remoting.RemoteInvocationHandler$RPCRequest.call(RemoteInvocationHandler.java:855)
 at hudson.remoting.UserRequest.perform(UserRequest.java:211)
 at hudson.remoting.UserRequest.perform(UserRequest.java:54)
 at hudson.remoting.Request$2.run(Request.java:369)
 at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
 at java.util.concurrent.FutureTask.run(Unknown Source)
 at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
 at hudson.remoting.Engine$1.lambda$newThread$0(Engine.java:97)
 at java.lang.Thread.run(Unknown Source)
 Caused by: java.nio.channels.ClosedChannelException
 at org.jenkinsci.remoting.protocol.NetworkLayer.onRecvClosed(NetworkLayer.java:154)
 at org.jenkinsci.remoting.protocol.impl.BIONetworkLayer.access$1800(BIONetworkLayer.java:48)
 at org.jenkinsci.remoting.protocol.impl.BIONetworkLayer$Reader.run(BIONetworkLayer.java:264)
 ... 4 more

kwi 01, 2020 12:25:05 AM hudson.remoting.UserRequest perform
 WARNING: LinkageError while performing UserRequest:UserRPCRequest:hudson.Launcher$RemoteProcess.join[](26)
 java.lang.NoClassDefFoundError: hudson/util/ProcessTree$OSProcess$CheckVetoes
 at hudson.util.ProcessTree$OSProcess.getVeto(ProcessTree.java:293)
 at hudson.util.ProcessTree$WindowsOSProcess.killRecursively(ProcessTree.java:539)
 at hudson.util.ProcessTree.killAll(ProcessTree.java:182)
 at hudson.Proc$LocalProc.destroy(Proc.java:387)
 at hudson.Proc$LocalProc.join(Proc.java:360)
 at hudson.Launcher$RemoteLaunchCallable$1.join(Launcher.java:1321)
 at sun.reflect.GeneratedMethodAccessor49.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
 at java.lang.reflect.Method.invoke(Unknown Source)
 at hudson.remoting.RemoteInvocationHandler$RPCRequest.perform(RemoteInvocationHandler.java:929)
 at hudson.remoting.RemoteInvocationHandler$RPCRequest.call(RemoteInvocationHandler.java:903)
 at hudson.remoting.RemoteInvocationHandler$RPCRequest.call(RemoteInvocationHandler.java:855)
 at hudson.remoting.UserRequest.perform(UserRequest.java:211)
 at hudson.remoting.UserRequest.perform(UserRequest.java:54)
 at hudson.remoting.Request$2.run(Request.java:369)
 at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
 at java.util.concurrent.FutureTask.run(Unknown Source)
 at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
 at hudson.remoting.Engine$1.lambda$newThread$0(Engine.java:97)
 at java.lang.Thread.run(Unknown Source)
 Caused by: java.lang.ClassNotFoundException: hudson.util.ProcessTree$OSProcess$CheckVetoes
 at java.net.URLClassLoader.findClass(Unknown Source)
 at hudson.remoting.RemoteClassLoader.findClass(RemoteClassLoader.java:171)
 at java.lang.ClassLoader.loadClass(Unknown Source)
 at java.lang.ClassLoader.loadClass(Unknown Source)
 ... 21 more

kwi 01, 2020 12:25:05 AM hudson.remoting.Request$2 run
 INFO: Failed to send back a reply to the request hudson.remoting.Request$2@2808c082: hudson.remoting.ChannelClosedException: Channel "hudson.remoting.Channel@1aa3bc97:JNLP4-connect connection to jenkins./:6666": channel is already closed
 kwi 01, 2020 12:25:15 AM hudson.remoting.jnlp.Main$CuiListener status
 INFO: Performing onReconnect operation.
 kwi 01, 2020 12:25:15 AM hudson.remoting.jnlp.Main$CuiListener status
 INFO: onReconnect operation completed.
 kwi 01, 2020 12:25:15 AM hudson.remoting.jnlp.Main$CuiListener status
 INFO: Locating server among [http://jenkins.:8080/]
 kwi 01, 2020 12:25:19 AM org.jenkinsci.remoting.engine.JnlpAgentEndpointResolver resolve
 INFO: Remoting server accepts the following protocols: [JNLP4-connect, Ping]
 kwi 01, 2020 12:25:19 AM hudson.remoting.jnlp.Main$CuiListener status
 INFO: Agent discovery successful
 Agent address: jenkins.
 Agent port: 6666
 Identity: d4:13:d5::31:96:c6
 kwi 01, 2020 12:25:19 AM hudson.remoting.jnlp.Main$CuiListener status
 INFO: Handshaking
 kwi 01, 2020 12:25:19 AM hudson.remoting.jnlp.Main$CuiListener status
 INFO: Connecting to jenkins.:6666
 kwi 01, 2020 12:25:19 AM hudson.remoting.jnlp.Main$CuiListener status
 INFO: Trying protocol: JNLP4-connect
 kwi 01, 2020 12:25:19 AM hudson.remoting.jnlp.Main$CuiListener status
 INFO: Remote identity confirmed: d4:13:d5::31:96:c6
 kwi 01, 2020 12:25:19 AM hudson.remoting.jnlp.Main$CuiListener status
 INFO: Connected
 ...
 kwi 01, 2020 8:03:28 AM org.jvnet.winp.Native loadByUrl
 WARNING: Failed to load DLL from static location
 java.lang.UnsatisfiedLinkError: Native Library J:\Jenkins\remoting\jarCache\44\winp.x64.BFFE30B3B50581290B1866EF8D48C609.dll already loaded in another classloader
 at java.lang.ClassLoader.loadLibrary0(Unknown Source)
 at java.lang.ClassLoader.loadLibrary(Unknown Source)
 at java.lang.Runtime.load0(Unknown Source)
 at java.lang.System.load(Unknown Source)
 at org.jvnet.winp.Native.loadDll(Native.java:242)
 at org.jvnet.winp.Native.loadByUrl(Native.java:162)
 at org.jvnet.winp.Native.load(Native.java:124)
 at org.jvnet.winp.Native.(Native.java:93)
 at org.jvnet.winp.WinProcess.enableDebugPrivilege(WinProcess.java:245)
 at hudson.util.ProcessTree$Windows.(ProcessTree.java:701)
 at hudson.util.ProcessTree.get(ProcessTree.java:447)
 at hudson.Launcher$RemoteLauncher$KillTask.call(Launcher.java:1100)
 at hudson.Launcher$RemoteLauncher$KillTask.call(Launcher.java:1091)
 at hudson.remoting.UserRequest.perform(UserRequest.java:211)
 at hudson.remoting.UserRequest.perform(UserRequest.java:54)
 at hudson.remoting.Request$2.run(Request.java:369)
 at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
 at java.util.concurrent.FutureTask.run(Unknown Source)
 at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
 at hudson.remoting.Engine$1.lambda$newThread$0(Engine.java:97)
 at java.lang.Thread.run(Unknown Source)

kwi 01, 2020 9:38:14 AM hudson.remoting.jnlp.Main$CuiListener status
 INFO: Terminated
 kwi 01, 2020 9:38:14 AM hudson.Launcher$RemoteLaunchCallable$1 join
 INFO: Failed to synchronize IO streams on the channel hudson.remoting.Channel@b76eafc:JNLP4-connect connection to jenkins./:6666
 hudson.remoting.ChannelClosedException: Channel "hudson.remoting.Channel@b76eafc:JNLP4-connect connection to jenkins./:6666": Remote call on JNLP4-connect connection to jenkins./:6666 failed. The channel is closing down or has closed down
 at hudson.remoting.Channel.call(Channel.java:948)
 at hudson.remoting.Channel.syncIO(Channel.java:1683)
 at hudson.Launcher$RemoteLaunchCallable$1.join(Launcher.java:1328)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
 at java.lang.reflect.Method.invoke(Unknown Source)
 at hudson.remoting.RemoteInvocationHandler$RPCRequest.perform(RemoteInvocationHandler.java:929)
 at hudson.remoting.RemoteInvocationHandler$RPCRequest.call(RemoteInvocationHandler.java:903)
 at hudson.remoting.RemoteInvocationHandler$RPCRequest.call(RemoteInvocationHandler.java:855)
 at hudson.remoting.UserRequest.perform(UserRequest.java:211)
 at hudson.remoting.UserRequest.perform(UserRequest.java:54)
 at hudson.remoting.Request$2.run(Request.java:369)
 at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
 at java.util.concurrent.FutureTask.run(Unknown Source)
 at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
 at hudson.remoting.Engine$1.lambda$newThread$0(Engine.java:97)
 at java.lang.Thread.run(Unknown Source)
 Caused by: java.nio.channels.ClosedChannelException
 at org.jenkinsci.remoting.protocol.NetworkLayer.onRecvClosed(NetworkLayer.java:154)
 at org.jenkinsci.remoting.protocol.impl.BIONetworkLayer.access$1800(BIONetworkLayer.java:48)
 at org.jenkinsci.remoting.protocol.impl.BIONetworkLayer$Reader.run(BIONetworkLayer.java:264)
 ... 4 more

kwi 01, 2020 9:38:14 AM hudson.remoting.UserRequest perform
 WARNING: LinkageError while performing UserRequest:UserRPCRequest:hudson.Launcher$RemoteProcess.join[](18)
 java.lang.NoClassDefFoundError: hudson/util/ProcessTree$OSProcess$CheckVetoes
 at hudson.util.ProcessTree$OSProcess.getVeto(ProcessTree.java:293)
 at hudson.util.ProcessTree$WindowsOSProcess.killRecursively(ProcessTree.java:539)
 at hudson.util.ProcessTree.killAll(ProcessTree.java:182)
 at hudson.Proc$LocalProc.destroy(Proc.java:387)
 at hudson.Proc$LocalProc.join(Proc.java:360)
 at hudson.Launcher$RemoteLaunchCallable$1.join(Launcher.java:1321)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
 at java.lang.reflect.Method.invoke(Unknown Source)
 at hudson.remoting.RemoteInvocationHandler$RPCRequest.perform(RemoteInvocationHandler.java:929)
 at hudson.remoting.RemoteInvocationHandler$RPCRequest.call(RemoteInvocationHandler.java:903)
 at hudson.remoting.RemoteInvocationHandler$RPCRequest.call(RemoteInvocationHandler.java:855)
 at hudson.remoting.UserRequest.perform(UserRequest.java:211)
 at hudson.remoting.UserRequest.perform(UserRequest.java:54)
 at hudson.remoting.Request$2.run(Request.java:369)
 at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
 at java.util.concurrent.FutureTask.run(Unknown Source)
 at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
 at hudson.remoting.Engine$1.lambda$newThread$0(Engine.java:97)
 at java.lang.Thread.run(Unknown Source)
 Caused by: java.lang.ClassNotFoundException: hudson.util.ProcessTree$OSProcess$CheckVetoes
 at java.net.URLClassLoader.findClass(Unknown Source)
 at hudson.remoting.RemoteClassLoader.findClass(RemoteClassLoader.java:171)
 at java.lang.ClassLoader.loadClass(Unknown Source)
 at java.lang.ClassLoader.loadClass(Unknown Source)
 ... 22 more

kwi 01, 2020 9:38:14 AM hudson.remoting.Request$2 run
 INFO: Failed to send back a reply to the request hudson.remoting.Request$2@13fbdfb5: hudson.remoting.ChannelClosedException: Channel "hudson.remoting.Channel@b76eafc:JNLP4-connect connection to jenkins./:6666": channel is already closed
 kwi 01, 2020 9:38:24 AM hudson.remoting.jnlp.Main$CuiListener status
 INFO: Performing onReconnect operation.
 kwi 01, 2020 9:38:24 AM hudson.remoting.jnlp.Main$CuiListener status
 INFO: onReconnect operation completed.
 kwi 01, 2020 9:38:24 AM hudson.remoting.jnlp.Main$CuiListener status
 INFO: Locating server among [http://jenkins.:8080/]
 kwi 01, 2020 9:38:24 AM org.jenkinsci.remoting.engine.JnlpAgentEndpointResolver resolve
 INFO: Remoting server accepts the following protocols: [JNLP4-connect, Ping]
 kwi 01, 2020 9:38:24 AM hudson.remoting.jnlp.Main$CuiListener status
 INFO: Agent discovery successful
 Agent address: jenkins.
 Agent port: 6666
 Identity: d4:13:d5::31:96:c6
 kwi 01, 2020 9:38:24 AM hudson.remoting.jnlp.Main$CuiListener status
 INFO: Handshaking
 kwi 01, 2020 9:38:24 AM hudson.remoting.jnlp.Main$CuiListener status
 INFO: Connecting to jenkins.:6666
 kwi 01, 2020 9:38:24 AM hudson.remoting.jnlp.Main$CuiListener status
 INFO: Trying protocol: JNLP4-connect
 kwi 01, 2020 9:38:25 AM hudson.remoting.jnlp.Main$CuiListener status
 INFO: Remote identity confirmed: d4:13:d5::31:96:c6
 kwi 01, 2020 9:38:25 AM hudson.remoting.jnlp.Main$CuiListener status
 INFO: Connected
 kwi 01, 2020 9:52:25 AM org.jenkinsci.remoting.util.AnonymousClassWarnings warn
 WARNING: Attempt to (de-)serialize anonymous class hudson.FilePath$2; see: [https://jenkins.io/redirect/serialization-of-anonymous-classes/]
 Failed to load native POSIX impl; falling back on Java impl. Unsupported OS.
 kwi 01, 2020 10:00:41 AM hudson.plugins.tmpcleaner.TmpCleanTask delete
 INFO: Deletion failed: C:\Users\jenkins\AppData\Local\Temp\tmpclean6250731123151792916.tmp
 kwi 01, 2020 10:00:41 AM hudson.plugins.tmpcleaner.TmpCleanTask call
 INFO: Temporary directory cleanup fried 0 B disk space, available 145,52 GB

First it happened when the agent was running as a Windows Service so without inspecting the logs I thought it must be some incopatibility issues since I auto-upgraded the master to Jenkins ver. 2.222.1 in the meantime (however no such issues on the other Windows Agent). I started the agent by a command-line and it was connected fine for several days doing the builds. Then we have fixed failing builds (our bad) and now the problem of disconnections returned, or just got more urgent since now we build more often and the agent reconnects after a failure. Maybe it's worth to note that our single build takes from 3 hours up to 7 days since we are working on a huge Unreal Engine project.

I have review related issues (JENKINS-20913 and JENKINS-18578) but this seems to not be the case.

Not sure how to reopen this issue but I think it should be.

[timja]

1996phani:

I am also seeing this now.

[timja]

jlr:

Same here. Getting a very similar stack trace. Copying it below as text, and including some more line numbers.

mar. 03, 2022 11:15:22 A. M. org.jvnet.winp.Native loadByUrl
 WARNING: Failed to load DLL from static location
 java.lang.UnsatisfiedLinkError: Native Library E:\jenkins-node\remoting\jarCache\44\winp.x64.BFFE30B3B50581290B1866EF8D48C609.dll already loaded in another classloader

       at java.base/java.lang.ClassLoader$NativeLibrary.loadLibrary(ClassLoader.java:2456)
       at java.base/java.lang.ClassLoader.loadLibrary0(ClassLoader.java:2684)
       at java.base/java.lang.ClassLoader.loadLibrary(ClassLoader.java:2617)
       at java.base/java.lang.Runtime.load0(Runtime.java:765)
       at java.base/java.lang.System.load(System.java:1835)
       at org.jvnet.winp.Native.loadDll(Native.java:242)
       at org.jvnet.winp.Native.loadByUrl(Native.java:162)
       at org.jvnet.winp.Native.load(Native.java:124)
       at org.jvnet.winp.Native.(Native.java:93)
       at org.jvnet.winp.WinProcess.enableDebugPrivilege(WinProcess.java:245)
       at hudson.util.ProcessTree$Windows.(ProcessTree.java:733)
       at hudson.util.ProcessTree.get(ProcessTree.java:470)
       at hudson.Launcher$RemoteLauncher$KillTask.call(Launcher.java:1168)
       at hudson.Launcher$RemoteLauncher$KillTask.call(Launcher.java:1158)
       at hudson.remoting.UserRequest.perform(UserRequest.java:211)
       at hudson.remoting.UserRequest.perform(UserRequest.java:54)
       at hudson.remoting.Request$2.run(Request.java:376)

The agent connects to a Jenkins 2.329. Not sure it has any relation to the problem, but the controller is started from the NetBeans debugger for a plugin project. I've been stopping the master node debug, compiling changes to the plugin and starting the debug again.

Both master and slave are on Windows 10. They are both in the same machine in fact.

[timja]

[Duplicates: JENKINS-20913]

[timja]

[Originally related to: JENKINS-31706]