java.lang.Exception: The server rejected the connection: <Slave Machine> is already connected to this master. Rejecting this connection.

Jenkins JIRA | Ryan Croom | 3 years ago
  1. 0

    Using the most recent build of Jenkins I have been seeing connection issues after issuing reboot commands to targets. After looking at some logs it looks like the slave service on Windows may not be shutting down correctly and is not disconnecting from the Jenkins Server. I suspect that this is causing the reconnect issues that I'm seeing after the machine comes back online. Below is the failure as reported by the Jenkins server and excerpts from log files on the slave machine when the issue reproduced. Error as reported from Jenkins Server: FATAL: hudson.remoting.RequestAbortedException: java.net.SocketException: Connection reset hudson.remoting.RequestAbortedException: hudson.remoting.RequestAbortedException: java.net.SocketException: Connection reset at hudson.remoting.RequestAbortedException.wrapForRethrow(RequestAbortedException.java:41) at hudson.remoting.RequestAbortedException.wrapForRethrow(RequestAbortedException.java:34) at hudson.remoting.Request.call(Request.java:174) at hudson.remoting.Channel.call(Channel.java:722) at hudson.FilePath.act(FilePath.java:1009) at org.jenkinsci.plugins.envinject.service.EnvironmentVariablesNodeLoader.gatherEnvironmentVariablesNode(EnvironmentVariablesNodeLoader.java:44) at org.jenkinsci.plugins.envinject.EnvInjectListener.loadEnvironmentVariablesNode(EnvInjectListener.java:81) at org.jenkinsci.plugins.envinject.EnvInjectListener.setUpEnvironment(EnvInjectListener.java:39) at hudson.model.AbstractBuild$AbstractBuildExecution.createLauncher(AbstractBuild.java:575) at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:481) at hudson.model.Run.execute(Run.java:1700) at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43) at hudson.model.ResourceController.execute(ResourceController.java:88) at hudson.model.Executor.run(Executor.java:231) Caused by: hudson.remoting.RequestAbortedException: java.net.SocketException: Connection reset at hudson.remoting.Request.abort(Request.java:299) at hudson.remoting.Channel.terminate(Channel.java:782) at hudson.remoting.SynchronousCommandTransport$ReaderThread.run(SynchronousCommandTransport.java:69) Caused by: java.net.SocketException: Connection reset at java.net.SocketInputStream.read(SocketInputStream.java:185) at java.io.FilterInputStream.read(FilterInputStream.java:133) at java.io.BufferedInputStream.fill(BufferedInputStream.java:235) at java.io.BufferedInputStream.read(BufferedInputStream.java:254) at hudson.remoting.FlightRecorderInputStream.read(FlightRecorderInputStream.java:77) at java.io.ObjectInputStream$PeekInputStream.peek(ObjectInputStream.java:2265) at java.io.ObjectInputStream$BlockDataInputStream.peek(ObjectInputStream.java:2558) at java.io.ObjectInputStream$BlockDataInputStream.peekByte(ObjectInputStream.java:2568) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1314) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:368) at hudson.remoting.Command.readFrom(Command.java:92) at hudson.remoting.ClassicCommandTransport.read(ClassicCommandTransport.java:71) at hudson.remoting.SynchronousCommandTransport$ReaderThread.run(SynchronousCommandTransport.java:48) From jenkins-slave.err.log: Apr 19, 2014 11:52:09 PM hudson.remoting.jnlp.Main createEngine INFO: Setting up slave: <Slave Machine> Apr 19, 2014 11:52:09 PM hudson.remoting.jnlp.Main$CuiListener <init> INFO: Jenkins agent is running in headless mode. Apr 19, 2014 11:52:09 PM hudson.remoting.jnlp.Main$CuiListener status INFO: Locating server among [http://<Jenkins Server>/] Apr 19, 2014 11:52:09 PM hudson.remoting.jnlp.Main$CuiListener status INFO: Connecting to <Jenkins Server> Apr 19, 2014 11:52:09 PM hudson.remoting.jnlp.Main$CuiListener status INFO: Handshaking Apr 19, 2014 11:52:09 PM hudson.remoting.jnlp.Main$CuiListener error SEVERE: The server rejected the connection: <Slave Machine> is already connected to this master. Rejecting this connection. java.lang.Exception: The server rejected the connection: <Slave Machine> is already connected to this master. Rejecting this connection. at hudson.remoting.Engine.onConnectionRejected(Engine.java:303) at hudson.remoting.Engine.run(Engine.java:276) From jenkins-slave.wrapper.log: 2014-04-19 23:52:14 - Stopping jenkinsslave-C__Jenkins 2014-04-19 23:52:14 - ProcessKill 3088 2014-04-19 23:52:15 - Shutdown exception Message:A system shutdown is in progress. (Exception from HRESULT: 0x8007045B) Stacktrace: at System.Runtime.InteropServices.Marshal.ThrowExceptionForHRInternal(Int32 errorCode, IntPtr errorInfo) at System.Management.ManagementScope.InitializeGuts(Object o) at System.Management.ManagementScope.Initialize() at System.Management.ManagementObjectSearcher.Initialize() at System.Management.ManagementObjectSearcher.Get() at winsw.WrapperService.StopProcessAndChildren(Int32 pid) at winsw.WrapperService.StopIt() at winsw.WrapperService.OnShutdown()

    Jenkins JIRA | 3 years ago | Ryan Croom
    java.lang.Exception: The server rejected the connection: <Slave Machine> is already connected to this master. Rejecting this connection.
  2. 0

    Using the most recent build of Jenkins I have been seeing connection issues after issuing reboot commands to targets. After looking at some logs it looks like the slave service on Windows may not be shutting down correctly and is not disconnecting from the Jenkins Server. I suspect that this is causing the reconnect issues that I'm seeing after the machine comes back online. Below is the failure as reported by the Jenkins server and excerpts from log files on the slave machine when the issue reproduced. Error as reported from Jenkins Server: FATAL: hudson.remoting.RequestAbortedException: java.net.SocketException: Connection reset hudson.remoting.RequestAbortedException: hudson.remoting.RequestAbortedException: java.net.SocketException: Connection reset at hudson.remoting.RequestAbortedException.wrapForRethrow(RequestAbortedException.java:41) at hudson.remoting.RequestAbortedException.wrapForRethrow(RequestAbortedException.java:34) at hudson.remoting.Request.call(Request.java:174) at hudson.remoting.Channel.call(Channel.java:722) at hudson.FilePath.act(FilePath.java:1009) at org.jenkinsci.plugins.envinject.service.EnvironmentVariablesNodeLoader.gatherEnvironmentVariablesNode(EnvironmentVariablesNodeLoader.java:44) at org.jenkinsci.plugins.envinject.EnvInjectListener.loadEnvironmentVariablesNode(EnvInjectListener.java:81) at org.jenkinsci.plugins.envinject.EnvInjectListener.setUpEnvironment(EnvInjectListener.java:39) at hudson.model.AbstractBuild$AbstractBuildExecution.createLauncher(AbstractBuild.java:575) at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:481) at hudson.model.Run.execute(Run.java:1700) at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43) at hudson.model.ResourceController.execute(ResourceController.java:88) at hudson.model.Executor.run(Executor.java:231) Caused by: hudson.remoting.RequestAbortedException: java.net.SocketException: Connection reset at hudson.remoting.Request.abort(Request.java:299) at hudson.remoting.Channel.terminate(Channel.java:782) at hudson.remoting.SynchronousCommandTransport$ReaderThread.run(SynchronousCommandTransport.java:69) Caused by: java.net.SocketException: Connection reset at java.net.SocketInputStream.read(SocketInputStream.java:185) at java.io.FilterInputStream.read(FilterInputStream.java:133) at java.io.BufferedInputStream.fill(BufferedInputStream.java:235) at java.io.BufferedInputStream.read(BufferedInputStream.java:254) at hudson.remoting.FlightRecorderInputStream.read(FlightRecorderInputStream.java:77) at java.io.ObjectInputStream$PeekInputStream.peek(ObjectInputStream.java:2265) at java.io.ObjectInputStream$BlockDataInputStream.peek(ObjectInputStream.java:2558) at java.io.ObjectInputStream$BlockDataInputStream.peekByte(ObjectInputStream.java:2568) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1314) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:368) at hudson.remoting.Command.readFrom(Command.java:92) at hudson.remoting.ClassicCommandTransport.read(ClassicCommandTransport.java:71) at hudson.remoting.SynchronousCommandTransport$ReaderThread.run(SynchronousCommandTransport.java:48) From jenkins-slave.err.log: Apr 19, 2014 11:52:09 PM hudson.remoting.jnlp.Main createEngine INFO: Setting up slave: <Slave Machine> Apr 19, 2014 11:52:09 PM hudson.remoting.jnlp.Main$CuiListener <init> INFO: Jenkins agent is running in headless mode. Apr 19, 2014 11:52:09 PM hudson.remoting.jnlp.Main$CuiListener status INFO: Locating server among [http://<Jenkins Server>/] Apr 19, 2014 11:52:09 PM hudson.remoting.jnlp.Main$CuiListener status INFO: Connecting to <Jenkins Server> Apr 19, 2014 11:52:09 PM hudson.remoting.jnlp.Main$CuiListener status INFO: Handshaking Apr 19, 2014 11:52:09 PM hudson.remoting.jnlp.Main$CuiListener error SEVERE: The server rejected the connection: <Slave Machine> is already connected to this master. Rejecting this connection. java.lang.Exception: The server rejected the connection: <Slave Machine> is already connected to this master. Rejecting this connection. at hudson.remoting.Engine.onConnectionRejected(Engine.java:303) at hudson.remoting.Engine.run(Engine.java:276) From jenkins-slave.wrapper.log: 2014-04-19 23:52:14 - Stopping jenkinsslave-C__Jenkins 2014-04-19 23:52:14 - ProcessKill 3088 2014-04-19 23:52:15 - Shutdown exception Message:A system shutdown is in progress. (Exception from HRESULT: 0x8007045B) Stacktrace: at System.Runtime.InteropServices.Marshal.ThrowExceptionForHRInternal(Int32 errorCode, IntPtr errorInfo) at System.Management.ManagementScope.InitializeGuts(Object o) at System.Management.ManagementScope.Initialize() at System.Management.ManagementObjectSearcher.Initialize() at System.Management.ManagementObjectSearcher.Get() at winsw.WrapperService.StopProcessAndChildren(Int32 pid) at winsw.WrapperService.StopIt() at winsw.WrapperService.OnShutdown()

    Jenkins JIRA | 3 years ago | Ryan Croom
    java.lang.Exception: The server rejected the connection: <Slave Machine> is already connected to this master. Rejecting this connection.
  3. 0

    [JENKINS-22692] Jenkins Windows-Slave throwing exception on shutdown causes connection reset issues - Jenkins JIRA

    jenkins-ci.org | 4 months ago
    java.lang.Exception: The server rejected the connection: <Slave Machine> is already connected to this master. Rejecting this connection.
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  5. 0

    Showing exception while connecting slave to master using headless jnlp

    Stack Overflow | 4 years ago | varghese
    java.lang.Exception: The server rejected the connection:
  6. 0

    Handshaking not happening between master and slave in jenkins

    Stack Overflow | 4 years ago | Chikku
    java.lang.Exception: The server rejected the connection:

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    Root Cause Analysis

    1. java.lang.Exception

      The server rejected the connection: <Slave Machine> is already connected to this master. Rejecting this connection.

      at hudson.remoting.Engine.onConnectionRejected()
    2. Hudson :: Remoting Layer
      Engine.run
      1. hudson.remoting.Engine.onConnectionRejected(Engine.java:303)
      2. hudson.remoting.Engine.run(Engine.java:276)
      2 frames