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  1. Jenkins
  2. JENKINS-64709

java.io.IOException: Could not open channel (state:4)

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    Description

      I am trying to connect a RHEL 7 system running java 8 as a node on a RHEL 7 Jenkins server. running the same version of Java. Below is the error message that I am getting. BTW I can connect a RHEL 6 system fine

      java.io.IOException: Could not open channel (state:4)
 at com.trilead.ssh2.channel.ChannelManager.ioException(ChannelManager.java:1542)
 at com.trilead.ssh2.channel.ChannelManager.waitUntilChannelOpen(ChannelManager.java:124)
 at com.trilead.ssh2.channel.ChannelManager.openSessionChannel(ChannelManager.java:576)
 at com.trilead.ssh2.Session.<init>(Session.java:42)
 at com.trilead.ssh2.Connection.openSession(Connection.java:1082)
 at com.trilead.ssh2.Connection.exec(Connection.java:1473)
 at hudson.plugins.sshslaves.SSHLauncher.verifyNoHeaderJunk(SSHLauncher.java:583)
 at hudson.plugins.sshslaves.SSHLauncher.access$100(SSHLauncher.java:113)
 at hudson.plugins.sshslaves.SSHLauncher$1.call(SSHLauncher.java:438)
 at hudson.plugins.sshslaves.SSHLauncher$1.call(SSHLauncher.java:423)
 at java.util.concurrent.FutureTask.run(FutureTask.java:266)
 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
 at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.IOException: The connection is being shutdown
 at com.trilead.ssh2.channel.ChannelManager.handleEndMessage(ChannelManager.java:1524)
 at com.trilead.ssh2.transport.TransportManager$1.run(TransportManager.java:535) ... 1 more
Caused by: java.net.SocketException: Connection reset
 at java.net.SocketInputStream.read(SocketInputStream.java:210)
 at java.net.SocketInputStream.read(SocketInputStream.java:141)
 at com.trilead.ssh2.crypto.cipher.CipherInputStream.fill_buffer(CipherInputStream.java:41)
 at com.trilead.ssh2.crypto.cipher.CipherInputStream.internal_read(CipherInputStream.java:52)
 at com.trilead.ssh2.crypto.cipher.CipherInputStream.getBlock(CipherInputStream.java:79)
 at com.trilead.ssh2.crypto.cipher.CipherInputStream.read(CipherInputStream.java:108)
 at com.trilead.ssh2.transport.TransportConnection.receiveMessage(TransportConnection.java:232)
 at com.trilead.ssh2.transport.TransportManager.receiveLoop(TransportManager.java:706)
 at com.trilead.ssh2.transport.TransportManager$1.run(TransportManager.java:502) ... 1 more [01/25/21 13:15:09] Launch failed - cleaning up connection [01/25/21 13:15:09] [SSH] Connection closed.

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          aragland8 Andrew Ragland created issue -
          danielbeck Daniel Beck made changes -
          Field Original Value New Value
          Description I am trying to connect a RHEL 7 system running java 8 as a node on a RHEL 7 Jenkins server. running the same version of Java. Below is the error message that I am getting. BTW I can connect a RHEL 6 system fine

          java.io.IOException: Could not open channel (state:4) at com.trilead.ssh2.channel.ChannelManager.ioException(ChannelManager.java:1542) at com.trilead.ssh2.channel.ChannelManager.waitUntilChannelOpen(ChannelManager.java:124) at com.trilead.ssh2.channel.ChannelManager.openSessionChannel(ChannelManager.java:576) at com.trilead.ssh2.Session.<init>(Session.java:42) at com.trilead.ssh2.Connection.openSession(Connection.java:1082) at com.trilead.ssh2.Connection.exec(Connection.java:1473) at hudson.plugins.sshslaves.SSHLauncher.verifyNoHeaderJunk(SSHLauncher.java:583) at hudson.plugins.sshslaves.SSHLauncher.access$100(SSHLauncher.java:113) at hudson.plugins.sshslaves.SSHLauncher$1.call(SSHLauncher.java:438) at hudson.plugins.sshslaves.SSHLauncher$1.call(SSHLauncher.java:423) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) Caused by: java.io.IOException: The connection is being shutdown at com.trilead.ssh2.channel.ChannelManager.handleEndMessage(ChannelManager.java:1524) at com.trilead.ssh2.transport.TransportManager$1.run(TransportManager.java:535) ... 1 more Caused by: java.net.SocketException: Connection reset at java.net.SocketInputStream.read(SocketInputStream.java:210) at java.net.SocketInputStream.read(SocketInputStream.java:141) at com.trilead.ssh2.crypto.cipher.CipherInputStream.fill_buffer(CipherInputStream.java:41) at com.trilead.ssh2.crypto.cipher.CipherInputStream.internal_read(CipherInputStream.java:52) at com.trilead.ssh2.crypto.cipher.CipherInputStream.getBlock(CipherInputStream.java:79) at com.trilead.ssh2.crypto.cipher.CipherInputStream.read(CipherInputStream.java:108) at com.trilead.ssh2.transport.TransportConnection.receiveMessage(TransportConnection.java:232) at com.trilead.ssh2.transport.TransportManager.receiveLoop(TransportManager.java:706) at com.trilead.ssh2.transport.TransportManager$1.run(TransportManager.java:502) ... 1 more [01/25/21 13:15:09] Launch failed - cleaning up connection [01/25/21 13:15:09] [SSH] Connection closed.           		I am trying to connect a RHEL 7 system running java 8 as a node on a RHEL 7 Jenkins server. running the same version of Java. Below is the error message that I am getting. BTW I can connect a RHEL 6 system fine
          {noformat}
          java.io.IOException: Could not open channel (state:4)
           at com.trilead.ssh2.channel.ChannelManager.ioException(ChannelManager.java:1542)
           at com.trilead.ssh2.channel.ChannelManager.waitUntilChannelOpen(ChannelManager.java:124)
           at com.trilead.ssh2.channel.ChannelManager.openSessionChannel(ChannelManager.java:576)
           at com.trilead.ssh2.Session.<init>(Session.java:42)
           at com.trilead.ssh2.Connection.openSession(Connection.java:1082)
           at com.trilead.ssh2.Connection.exec(Connection.java:1473)
           at hudson.plugins.sshslaves.SSHLauncher.verifyNoHeaderJunk(SSHLauncher.java:583)
           at hudson.plugins.sshslaves.SSHLauncher.access$100(SSHLauncher.java:113)
           at hudson.plugins.sshslaves.SSHLauncher$1.call(SSHLauncher.java:438)
           at hudson.plugins.sshslaves.SSHLauncher$1.call(SSHLauncher.java:423)
           at java.util.concurrent.FutureTask.run(FutureTask.java:266)
           at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
           at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
           at java.lang.Thread.run(Thread.java:748)
          Caused by: java.io.IOException: The connection is being shutdown
           at com.trilead.ssh2.channel.ChannelManager.handleEndMessage(ChannelManager.java:1524)
           at com.trilead.ssh2.transport.TransportManager$1.run(TransportManager.java:535) ... 1 more
          Caused by: java.net.SocketException: Connection reset
           at java.net.SocketInputStream.read(SocketInputStream.java:210)
           at java.net.SocketInputStream.read(SocketInputStream.java:141)
           at com.trilead.ssh2.crypto.cipher.CipherInputStream.fill_buffer(CipherInputStream.java:41)
           at com.trilead.ssh2.crypto.cipher.CipherInputStream.internal_read(CipherInputStream.java:52)
           at com.trilead.ssh2.crypto.cipher.CipherInputStream.getBlock(CipherInputStream.java:79)
           at com.trilead.ssh2.crypto.cipher.CipherInputStream.read(CipherInputStream.java:108)
           at com.trilead.ssh2.transport.TransportConnection.receiveMessage(TransportConnection.java:232)
           at com.trilead.ssh2.transport.TransportManager.receiveLoop(TransportManager.java:706)
           at com.trilead.ssh2.transport.TransportManager$1.run(TransportManager.java:502) ... 1 more [01/25/21 13:15:09] Launch failed - cleaning up connection [01/25/21 13:15:09] [SSH] Connection closed. {noformat}
          oleg_nenashev Oleg Nenashev made changes -
          Component/s ssh-slaves-plugin [ 15578 ]
          Component/s trilead-api-plugin [ 22324 ]
          Component/s core [ 15593 ]
          aragland8 Andrew Ragland added a comment -

          I was able to resolve this issue. The issue was caused by FIPS being on. This is one of our stig (hardening) requirements. When FIPS was on, the keys were being created in PKCS#8 format. With that said, PKCS#8 format is not supported by Jenkins. In order to fix this we has to turn off FIPS and then regenerate the keys so they would create in PKCS#1 format. 

          aragland8 Andrew Ragland added a comment - I was able to resolve this issue. The issue was caused by FIPS being on. This is one of our stig (hardening) requirements. When FIPS was on, the keys were being created in PKCS#8 format. With that said, PKCS#8 format is not supported by Jenkins. In order to fix this we has to turn off FIPS and then regenerate the keys so they would create in PKCS#1 format. 
          aragland8 Andrew Ragland made changes -
          Resolution Fixed [ 1 ]
          Status Open [ 1 ] Fixed but Unreleased [ 10203 ]

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            aragland8 Andrew Ragland
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              Created:
              Updated:
              Resolved: