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  1. Jenkins
  2. JENKINS-59910

Java 11 agent disconnection: UnsupportedOperationException from ProtocolStack$Ptr.isSendOpen

    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: Critical Critical
    • core, remoting
    • Docker image based on jenkins/jenkins:2.204.5-jdk11
      Both with and without Nginx 1.17.6 as reverse proxy
      Ubuntu 18.04

      Investigating a spike in builds queue size we've found out that TcpSlaveAgent listener thread was dead with the following logs:

      2019-10-23 09:02:17.236+0000 [id=200815]        SEVERE  h.TcpSlaveAgentListener$ConnectionHandler#lambda$new$0: Uncaught exception in TcpSlaveAgentListener ConnectionHandler Thread[TCP agent connection handler #1715 with /10.125.100.99:47700,5,main]
      java.lang.UnsupportedOperationException: Network layer is not supposed to call isSendOpen
              at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.isSendOpen(ProtocolStack.java:730)
              at org.jenkinsci.remoting.protocol.FilterLayer.isSendOpen(FilterLayer.java:340)
              at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.isSendOpen(ProtocolStack.java:738)
              at org.jenkinsci.remoting.protocol.FilterLayer.isSendOpen(FilterLayer.java:340)
              at org.jenkinsci.remoting.protocol.impl.SSLEngineFilterLayer.isSendOpen(SSLEngineFilterLayer.java:237)
              at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.isSendOpen(ProtocolStack.java:738)
              at org.jenkinsci.remoting.protocol.FilterLayer.isSendOpen(FilterLayer.java:340)
              at org.jenkinsci.remoting.protocol.impl.ConnectionHeadersFilterLayer.isSendOpen(ConnectionHeadersFilterLayer.java:514)
              at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.doSend(ProtocolStack.java:690)
              at org.jenkinsci.remoting.protocol.ApplicationLayer.write(ApplicationLayer.java:157)
              at org.jenkinsci.remoting.protocol.impl.ChannelApplicationLayer.start(ChannelApplicationLayer.java:230)
              at org.jenkinsci.remoting.protocol.ProtocolStack.init(ProtocolStack.java:201)
              at org.jenkinsci.remoting.protocol.ProtocolStack.access$700(ProtocolStack.java:106)
              at org.jenkinsci.remoting.protocol.ProtocolStack$Builder.build(ProtocolStack.java:554)
              at org.jenkinsci.remoting.engine.JnlpProtocol4Handler.handle(JnlpProtocol4Handler.java:153)
              at jenkins.slaves.JnlpSlaveAgentProtocol4.handle(JnlpSlaveAgentProtocol4.java:203)
              at hudson.TcpSlaveAgentListener$ConnectionHandler.run(TcpSlaveAgentListener.java:271)
      2019-10-23 09:02:17.237+0000 [id=200815]        WARNING hudson.TcpSlaveAgentListener$1#run: Connection handler failed, restarting listener
      java.lang.UnsupportedOperationException: Network layer is not supposed to call isSendOpen
              at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.isSendOpen(ProtocolStack.java:730)
              at org.jenkinsci.remoting.protocol.FilterLayer.isSendOpen(FilterLayer.java:340)
              at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.isSendOpen(ProtocolStack.java:738)
              at org.jenkinsci.remoting.protocol.FilterLayer.isSendOpen(FilterLayer.java:340)
              at org.jenkinsci.remoting.protocol.impl.SSLEngineFilterLayer.isSendOpen(SSLEngineFilterLayer.java:237)
              at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.isSendOpen(ProtocolStack.java:738)
              at org.jenkinsci.remoting.protocol.FilterLayer.isSendOpen(FilterLayer.java:340)
              at org.jenkinsci.remoting.protocol.impl.ConnectionHeadersFilterLayer.isSendOpen(ConnectionHeadersFilterLayer.java:514)
              at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.doSend(ProtocolStack.java:690)
              at org.jenkinsci.remoting.protocol.ApplicationLayer.write(ApplicationLayer.java:157)
              at org.jenkinsci.remoting.protocol.impl.ChannelApplicationLayer.start(ChannelApplicationLayer.java:230)
              at org.jenkinsci.remoting.protocol.ProtocolStack.init(ProtocolStack.java:201)
              at org.jenkinsci.remoting.protocol.ProtocolStack.access$700(ProtocolStack.java:106)
              at org.jenkinsci.remoting.protocol.ProtocolStack$Builder.build(ProtocolStack.java:554)
              at org.jenkinsci.remoting.engine.JnlpProtocol4Handler.handle(JnlpProtocol4Handler.java:153)
              at jenkins.slaves.JnlpSlaveAgentProtocol4.handle(JnlpSlaveAgentProtocol4.java:203)
              at hudson.TcpSlaveAgentListener$ConnectionHandler.run(TcpSlaveAgentListener.java:271) 

      Followed by logs from nodes created by Jenkins Kubernetes Plugin:

      SEVERE: http://jenkins-master.example.com/ provided port:50000 is not reachable
      java.io.IOException: http://jenkins-master.example.com/ provided port:50000 is not reachable
              at org.jenkinsci.remoting.engine.JnlpAgentEndpointResolver.resolve(JnlpAgentEndpointResolver.java:287)
              at hudson.remoting.Engine.innerRun(Engine.java:523)
              at hudson.remoting.Engine.run(Engine.java:474)
       

      Changing JNLP port from 50000 to 50001 and back in Jenkins settings helped to restore connection and then nodes were able to connect to master again.

          [JENKINS-59910] Java 11 agent disconnection: UnsupportedOperationException from ProtocolStack$Ptr.isSendOpen

          Andrey Babushkin created issue -

          It didn't occur after rollback to Jenkins 2.176.4

          Andrey Babushkin added a comment - It didn't occur after rollback to Jenkins 2.176.4
          Andrey Babushkin made changes -
          Environment Original: Official Docker image jenkins/jenkins:2.190.1-jdk11
          No HTTPS enabled
          Ubuntu 18.04
          New: Official Docker image jenkins/jenkins:2.190.1-jdk11
          Both with and without Nginx 1.17.6 as reverse proxy
          Ubuntu 18.04
          Andrey Babushkin made changes -
          Environment Original: Official Docker image jenkins/jenkins:2.190.1-jdk11
          Both with and without Nginx 1.17.6 as reverse proxy
          Ubuntu 18.04
          New: Docker image based on jenkins/jenkins:2.204.5-jdk11
          Both with and without Nginx 1.17.6 as reverse proxy
          Ubuntu 18.04

          Nope it DID occur and still occur sometimes, we on Jenkins 2.204.5 now.

          jglick could you please give me some hints of how to debug this further to find the root cause?

          Andrey Babushkin added a comment - Nope it DID occur and still occur sometimes, we on Jenkins 2.204.5 now. jglick could you please give me some hints of how to debug this further to find the root cause?
          Andrey Babushkin made changes -
          Description Original: Investigating a spike in builds queue size we've found out that TcpSlaveAgent listener thread was dead with the following logs:
          {code:java}
          2019-10-23 09:02:17.236+0000 [id=200815] SEVERE h.TcpSlaveAgentListener$ConnectionHandler#lambda$new$0: Uncaught exception in TcpSlaveAgentListener ConnectionHandler Thread[TCP agent connection handler #1715 with /10.125.100.99:47700,5,main]
          java.lang.UnsupportedOperationException: Network layer is not supposed to call isSendOpen
                  at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.isSendOpen(ProtocolStack.java:730)
                  at org.jenkinsci.remoting.protocol.FilterLayer.isSendOpen(FilterLayer.java:340)
                  at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.isSendOpen(ProtocolStack.java:738)
                  at org.jenkinsci.remoting.protocol.FilterLayer.isSendOpen(FilterLayer.java:340)
                  at org.jenkinsci.remoting.protocol.impl.SSLEngineFilterLayer.isSendOpen(SSLEngineFilterLayer.java:237)
                  at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.isSendOpen(ProtocolStack.java:738)
                  at org.jenkinsci.remoting.protocol.FilterLayer.isSendOpen(FilterLayer.java:340)
                  at org.jenkinsci.remoting.protocol.impl.ConnectionHeadersFilterLayer.isSendOpen(ConnectionHeadersFilterLayer.java:514)
                  at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.doSend(ProtocolStack.java:690)
                  at org.jenkinsci.remoting.protocol.ApplicationLayer.write(ApplicationLayer.java:157)
                  at org.jenkinsci.remoting.protocol.impl.ChannelApplicationLayer.start(ChannelApplicationLayer.java:230)
                  at org.jenkinsci.remoting.protocol.ProtocolStack.init(ProtocolStack.java:201)
                  at org.jenkinsci.remoting.protocol.ProtocolStack.access$700(ProtocolStack.java:106)
                  at org.jenkinsci.remoting.protocol.ProtocolStack$Builder.build(ProtocolStack.java:554)
                  at org.jenkinsci.remoting.engine.JnlpProtocol4Handler.handle(JnlpProtocol4Handler.java:153)
                  at jenkins.slaves.JnlpSlaveAgentProtocol4.handle(JnlpSlaveAgentProtocol4.java:203)
                  at hudson.TcpSlaveAgentListener$ConnectionHandler.run(TcpSlaveAgentListener.java:271)
          2019-10-23 09:02:17.237+0000 [id=200815] WARNING hudson.TcpSlaveAgentListener$1#run: Connection handler failed, restarting listener
          java.lang.UnsupportedOperationException: Network layer is not supposed to call isSendOpen
                  at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.isSendOpen(ProtocolStack.java:730)
                  at org.jenkinsci.remoting.protocol.FilterLayer.isSendOpen(FilterLayer.java:340)
                  at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.isSendOpen(ProtocolStack.java:738)
                  at org.jenkinsci.remoting.protocol.FilterLayer.isSendOpen(FilterLayer.java:340)
                  at org.jenkinsci.remoting.protocol.impl.SSLEngineFilterLayer.isSendOpen(SSLEngineFilterLayer.java:237)
                  at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.isSendOpen(ProtocolStack.java:738)
                  at org.jenkinsci.remoting.protocol.FilterLayer.isSendOpen(FilterLayer.java:340)
                  at org.jenkinsci.remoting.protocol.impl.ConnectionHeadersFilterLayer.isSendOpen(ConnectionHeadersFilterLayer.java:514)
                  at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.doSend(ProtocolStack.java:690)
                  at org.jenkinsci.remoting.protocol.ApplicationLayer.write(ApplicationLayer.java:157)
                  at org.jenkinsci.remoting.protocol.impl.ChannelApplicationLayer.start(ChannelApplicationLayer.java:230)
                  at org.jenkinsci.remoting.protocol.ProtocolStack.init(ProtocolStack.java:201)
                  at org.jenkinsci.remoting.protocol.ProtocolStack.access$700(ProtocolStack.java:106)
                  at org.jenkinsci.remoting.protocol.ProtocolStack$Builder.build(ProtocolStack.java:554)
                  at org.jenkinsci.remoting.engine.JnlpProtocol4Handler.handle(JnlpProtocol4Handler.java:153)
                  at jenkins.slaves.JnlpSlaveAgentProtocol4.handle(JnlpSlaveAgentProtocol4.java:203)
                  at hudson.TcpSlaveAgentListener$ConnectionHandler.run(TcpSlaveAgentListener.java:271) {code}
          Followed by logs from nodes created by Jenkins Kubernetes Plugin:
          {code:java}
          SEVERE: http://jenkins-master.example.com/ provided port:50000 is not reachable
          java.io.IOException: http://jenkins-master.example.com/ provided port:50000 is not reachable
                  at org.jenkinsci.remoting.engine.JnlpAgentEndpointResolver.resolve(JnlpAgentEndpointResolver.java:287)
                  at hudson.remoting.Engine.innerRun(Engine.java:523)
                  at hudson.remoting.Engine.run(Engine.java:474)
           {code}
          Changing JNLP port from 50000 to 50001 and back in Jenkins settings helped to restore connection and then nodes were able to connect to master again.

          A few questions:
           # How can I debug this further?
           # Can it be an issue with Jenkins 2.190.1? (We've faced this twice after upgrade from previous LTS in September)
           # Is there some way to notify administrator about such things in logs?
          New: Investigating a spike in builds queue size we've found out that TcpSlaveAgent listener thread was dead with the following logs:
          {code:java}
          2019-10-23 09:02:17.236+0000 [id=200815] SEVERE h.TcpSlaveAgentListener$ConnectionHandler#lambda$new$0: Uncaught exception in TcpSlaveAgentListener ConnectionHandler Thread[TCP agent connection handler #1715 with /10.125.100.99:47700,5,main]
          java.lang.UnsupportedOperationException: Network layer is not supposed to call isSendOpen
                  at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.isSendOpen(ProtocolStack.java:730)
                  at org.jenkinsci.remoting.protocol.FilterLayer.isSendOpen(FilterLayer.java:340)
                  at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.isSendOpen(ProtocolStack.java:738)
                  at org.jenkinsci.remoting.protocol.FilterLayer.isSendOpen(FilterLayer.java:340)
                  at org.jenkinsci.remoting.protocol.impl.SSLEngineFilterLayer.isSendOpen(SSLEngineFilterLayer.java:237)
                  at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.isSendOpen(ProtocolStack.java:738)
                  at org.jenkinsci.remoting.protocol.FilterLayer.isSendOpen(FilterLayer.java:340)
                  at org.jenkinsci.remoting.protocol.impl.ConnectionHeadersFilterLayer.isSendOpen(ConnectionHeadersFilterLayer.java:514)
                  at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.doSend(ProtocolStack.java:690)
                  at org.jenkinsci.remoting.protocol.ApplicationLayer.write(ApplicationLayer.java:157)
                  at org.jenkinsci.remoting.protocol.impl.ChannelApplicationLayer.start(ChannelApplicationLayer.java:230)
                  at org.jenkinsci.remoting.protocol.ProtocolStack.init(ProtocolStack.java:201)
                  at org.jenkinsci.remoting.protocol.ProtocolStack.access$700(ProtocolStack.java:106)
                  at org.jenkinsci.remoting.protocol.ProtocolStack$Builder.build(ProtocolStack.java:554)
                  at org.jenkinsci.remoting.engine.JnlpProtocol4Handler.handle(JnlpProtocol4Handler.java:153)
                  at jenkins.slaves.JnlpSlaveAgentProtocol4.handle(JnlpSlaveAgentProtocol4.java:203)
                  at hudson.TcpSlaveAgentListener$ConnectionHandler.run(TcpSlaveAgentListener.java:271)
          2019-10-23 09:02:17.237+0000 [id=200815] WARNING hudson.TcpSlaveAgentListener$1#run: Connection handler failed, restarting listener
          java.lang.UnsupportedOperationException: Network layer is not supposed to call isSendOpen
                  at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.isSendOpen(ProtocolStack.java:730)
                  at org.jenkinsci.remoting.protocol.FilterLayer.isSendOpen(FilterLayer.java:340)
                  at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.isSendOpen(ProtocolStack.java:738)
                  at org.jenkinsci.remoting.protocol.FilterLayer.isSendOpen(FilterLayer.java:340)
                  at org.jenkinsci.remoting.protocol.impl.SSLEngineFilterLayer.isSendOpen(SSLEngineFilterLayer.java:237)
                  at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.isSendOpen(ProtocolStack.java:738)
                  at org.jenkinsci.remoting.protocol.FilterLayer.isSendOpen(FilterLayer.java:340)
                  at org.jenkinsci.remoting.protocol.impl.ConnectionHeadersFilterLayer.isSendOpen(ConnectionHeadersFilterLayer.java:514)
                  at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.doSend(ProtocolStack.java:690)
                  at org.jenkinsci.remoting.protocol.ApplicationLayer.write(ApplicationLayer.java:157)
                  at org.jenkinsci.remoting.protocol.impl.ChannelApplicationLayer.start(ChannelApplicationLayer.java:230)
                  at org.jenkinsci.remoting.protocol.ProtocolStack.init(ProtocolStack.java:201)
                  at org.jenkinsci.remoting.protocol.ProtocolStack.access$700(ProtocolStack.java:106)
                  at org.jenkinsci.remoting.protocol.ProtocolStack$Builder.build(ProtocolStack.java:554)
                  at org.jenkinsci.remoting.engine.JnlpProtocol4Handler.handle(JnlpProtocol4Handler.java:153)
                  at jenkins.slaves.JnlpSlaveAgentProtocol4.handle(JnlpSlaveAgentProtocol4.java:203)
                  at hudson.TcpSlaveAgentListener$ConnectionHandler.run(TcpSlaveAgentListener.java:271) {code}
          Followed by logs from nodes created by Jenkins Kubernetes Plugin:
          {code:java}
          SEVERE: http://jenkins-master.example.com/ provided port:50000 is not reachable
          java.io.IOException: http://jenkins-master.example.com/ provided port:50000 is not reachable
                  at org.jenkinsci.remoting.engine.JnlpAgentEndpointResolver.resolve(JnlpAgentEndpointResolver.java:287)
                  at hudson.remoting.Engine.innerRun(Engine.java:523)
                  at hudson.remoting.Engine.run(Engine.java:474)
           {code}
          Changing JNLP port from 50000 to 50001 and back in Jenkins settings helped to restore connection and then nodes were able to connect to master again.
          Jesse Glick made changes -
          Labels New: remoting

          Jesse Glick added a comment -

          Sorry, I am not familiar with ProtocolStack really. You can try WebSocket mode to see if it behaves any better.

          Jesse Glick added a comment - Sorry, I am not familiar with ProtocolStack really. You can try WebSocket mode to see if it behaves any better.

          Thanks! I'll give it a shot.

          For future readers of this ticket Jesse referenced to WebSocket mode introduced in 2.217 https://www.jenkins.io/blog/2020/02/02/web-socket/

          Andrey Babushkin added a comment - Thanks! I'll give it a shot. For future readers of this ticket Jesse referenced to WebSocket mode introduced in 2.217  https://www.jenkins.io/blog/2020/02/02/web-socket/

          NGG added a comment -

          I've also seen this in version 2.263.1

          Stack trace

          Jan 23 01:06:04 jenkins tomcat9[15234]: Uncaught exception in TcpSlaveAgentListener ConnectionHandler Thread[TCP agent connection handler #5925 with /10.0.210.153:58316,5,main]
          Jan 23 01:06:04 jenkins tomcat9[15234]: java.lang.UnsupportedOperationException: Network layer is not supposed to call isSendOpen
          Jan 23 01:06:04 jenkins tomcat9[15234]:     at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.isSendOpen(ProtocolStack.java:730)
          Jan 23 01:06:04 jenkins tomcat9[15234]:     at org.jenkinsci.remoting.protocol.FilterLayer.isSendOpen(FilterLayer.java:342)
          Jan 23 01:06:04 jenkins tomcat9[15234]:     at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.isSendOpen(ProtocolStack.java:738)
          Jan 23 01:06:04 jenkins tomcat9[15234]:     at org.jenkinsci.remoting.protocol.FilterLayer.isSendOpen(FilterLayer.java:342)
          Jan 23 01:06:04 jenkins tomcat9[15234]:     at org.jenkinsci.remoting.protocol.impl.SSLEngineFilterLayer.isSendOpen(SSLEngineFilterLayer.java:237)
          Jan 23 01:06:04 jenkins tomcat9[15234]:     at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.isSendOpen(ProtocolStack.java:738)
          Jan 23 01:06:04 jenkins tomcat9[15234]:     at org.jenkinsci.remoting.protocol.FilterLayer.isSendOpen(FilterLayer.java:342)
          Jan 23 01:06:04 jenkins tomcat9[15234]:     at org.jenkinsci.remoting.protocol.impl.ConnectionHeadersFilterLayer.isSendOpen(ConnectionHeadersFilterLayer.java:514)
          Jan 23 01:06:04 jenkins tomcat9[15234]:     at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.doSend(ProtocolStack.java:690)
          Jan 23 01:06:04 jenkins tomcat9[15234]:     at org.jenkinsci.remoting.protocol.ApplicationLayer.write(ApplicationLayer.java:156)
          Jan 23 01:06:04 jenkins tomcat9[15234]:     at org.jenkinsci.remoting.protocol.impl.ChannelApplicationLayer.start(ChannelApplicationLayer.java:230)
          Jan 23 01:06:04 jenkins tomcat9[15234]:     at org.jenkinsci.remoting.protocol.ProtocolStack.init(ProtocolStack.java:201)
          Jan 23 01:06:04 jenkins tomcat9[15234]:     at org.jenkinsci.remoting.protocol.ProtocolStack.access$700(ProtocolStack.java:106)
          Jan 23 01:06:04 jenkins tomcat9[15234]:     at org.jenkinsci.remoting.protocol.ProtocolStack$Builder.build(ProtocolStack.java:554)
          Jan 23 01:06:04 jenkins tomcat9[15234]:     at org.jenkinsci.remoting.engine.JnlpProtocol4Handler.handle(JnlpProtocol4Handler.java:155)
          Jan 23 01:06:04 jenkins tomcat9[15234]:     at jenkins.slaves.JnlpSlaveAgentProtocol4.handle(JnlpSlaveAgentProtocol4.java:195)
          Jan 23 01:06:04 jenkins tomcat9[15234]:     at hudson.TcpSlaveAgentListener$ConnectionHandler.run(TcpSlaveAgentListener.java:284)

           

          NGG added a comment - I've also seen this in version 2.263.1 Stack trace Jan 23 01:06:04 jenkins tomcat9[15234]: Uncaught exception in TcpSlaveAgentListener ConnectionHandler Thread[TCP agent connection handler #5925 with /10.0.210.153:58316,5,main] Jan 23 01:06:04 jenkins tomcat9[15234]: java.lang.UnsupportedOperationException: Network layer is not supposed to call isSendOpen Jan 23 01:06:04 jenkins tomcat9[15234]: at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.isSendOpen(ProtocolStack.java:730) Jan 23 01:06:04 jenkins tomcat9[15234]: at org.jenkinsci.remoting.protocol.FilterLayer.isSendOpen(FilterLayer.java:342) Jan 23 01:06:04 jenkins tomcat9[15234]: at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.isSendOpen(ProtocolStack.java:738) Jan 23 01:06:04 jenkins tomcat9[15234]: at org.jenkinsci.remoting.protocol.FilterLayer.isSendOpen(FilterLayer.java:342) Jan 23 01:06:04 jenkins tomcat9[15234]: at org.jenkinsci.remoting.protocol.impl.SSLEngineFilterLayer.isSendOpen(SSLEngineFilterLayer.java:237) Jan 23 01:06:04 jenkins tomcat9[15234]: at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.isSendOpen(ProtocolStack.java:738) Jan 23 01:06:04 jenkins tomcat9[15234]: at org.jenkinsci.remoting.protocol.FilterLayer.isSendOpen(FilterLayer.java:342) Jan 23 01:06:04 jenkins tomcat9[15234]: at org.jenkinsci.remoting.protocol.impl.ConnectionHeadersFilterLayer.isSendOpen(ConnectionHeadersFilterLayer.java:514) Jan 23 01:06:04 jenkins tomcat9[15234]: at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.doSend(ProtocolStack.java:690) Jan 23 01:06:04 jenkins tomcat9[15234]: at org.jenkinsci.remoting.protocol.ApplicationLayer.write(ApplicationLayer.java:156) Jan 23 01:06:04 jenkins tomcat9[15234]: at org.jenkinsci.remoting.protocol.impl.ChannelApplicationLayer.start(ChannelApplicationLayer.java:230) Jan 23 01:06:04 jenkins tomcat9[15234]: at org.jenkinsci.remoting.protocol.ProtocolStack.init(ProtocolStack.java:201) Jan 23 01:06:04 jenkins tomcat9[15234]: at org.jenkinsci.remoting.protocol.ProtocolStack.access$700(ProtocolStack.java:106) Jan 23 01:06:04 jenkins tomcat9[15234]: at org.jenkinsci.remoting.protocol.ProtocolStack$Builder.build(ProtocolStack.java:554) Jan 23 01:06:04 jenkins tomcat9[15234]: at org.jenkinsci.remoting.engine.JnlpProtocol4Handler.handle(JnlpProtocol4Handler.java:155) Jan 23 01:06:04 jenkins tomcat9[15234]: at jenkins.slaves.JnlpSlaveAgentProtocol4.handle(JnlpSlaveAgentProtocol4.java:195) Jan 23 01:06:04 jenkins tomcat9[15234]: at hudson.TcpSlaveAgentListener$ConnectionHandler.run(TcpSlaveAgentListener.java:284)  

            Unassigned Unassigned
            oxygenxo Andrey Babushkin
            Votes:
            22 Vote for this issue
            Watchers:
            40 Start watching this issue

              Created:
              Updated: