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  1. Jenkins
  2. JENKINS-53810

Launch Agents fails with ERROR: null java.util.concurrent.CancellationException

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    • Icon: Bug Bug
    • Resolution: Fixed
    • Icon: Major Major
    • ssh-slaves-1.30.0

      Launching node/agent fails with

      ERROR: null
      java.util.concurrent.CancellationException

      We have large number number of jobs in queue which gets assigned to slaves being created by Docker plugin. Even, if we try creating slave and try to launch agent, it fails.
      Note: Slave image adheres to all the requirement and works well if there is no huge queue.

      Executor Status
      SSHLauncher{host='9.47.78.144', port=32870, credentialsId='slave-test', jvmOptions='', javaPath='', prefixStartSlaveCmd='', suffixStartSlaveCmd='', launchTimeoutSeconds=210, maxNumRetries=10, retryWaitTime=15, sshHostKeyVerificationStrategy=hudson.plugins.sshslaves.verifiers.NonVerifyingKeyVerificationStrategy, tcpNoDelay=true, trackCredentials=true}
      [09/27/18 02:53:32] [SSH] Opening SSH connection to 9.47.78.144:32870.
      [09/27/18 02:53:32] [SSH] WARNING: SSH Host Keys are not being verified. Man-in-the-middle attacks may be possible against this connection.
      [09/27/18 02:53:32] [SSH] Authentication successful.
      [09/27/18 02:53:32] [SSH] The remote user's environment is:
      BASH=/usr/bin/bash
      BASHOPTS=cmdhist:expand_aliases:extquote:force_fignore:hostcomplete:interactive_comments:progcomp:promptvars:sourcepath
      BASH_ALIASES=()
      BASH_ARGC=()
      BASH_ARGV=()
      BASH_CMDS=()
      BASH_EXECUTION_STRING=set
      BASH_LINENO=()
      BASH_SOURCE=()
      BASH_VERSINFO=([0]="4" [1]="2" [2]="46" [3]="1" [4]="release" [5]="s390x-ibm-linux-gnu")
      BASH_VERSION='4.2.46(1)-release'
      DIRSTACK=()
      EUID=1000
      GROUPS=()
      HOME=/home/test
      HOSTNAME=01695f4aae73
      HOSTTYPE=s390x
      IFS=$' \t\n'
      LESSOPEN='||/usr/bin/lesspipe.sh %s'
      LOGNAME=test
      MACHTYPE=s390x-ibm-linux-gnu
      MAIL=/var/mail/test
      OPTERR=1
      OPTIND=1
      OSTYPE=linux-gnu
      PATH=/usr/local/bin:/usr/bin
      PIPESTATUS=([0]="0")
      PPID=13
      PS4='+ '
      PWD=/home/test
      SHELL=/bin/bash
      SHELLOPTS=braceexpand:hashall:interactive-comments
      SHLVL=1
      SSH_CLIENT='9.42.27.56 44378 22'
      SSH_CONNECTION='9.42.27.56 44378 172.17.0.2 22'
      TERM=dumb
      UID=1000
      USER=test
      _=sudo
      [09/27/18 02:53:32] [SSH] Checking java version of /home/test/jdk/bin/java
      Couldn't figure out the Java version of /home/test/jdk/bin/java
      bash: /home/test/jdk/bin/java: No such file or directory
      
      [09/27/18 02:53:33] [SSH] Checking java version of java
      [09/27/18 02:53:34] [SSH] java -version returned 1.8.0_151.
      [09/27/18 02:53:34] [SSH] Starting sftp client.
      [09/27/18 02:53:34] [SSH] Copying latest remoting.jar...
      [09/27/18 02:53:36] [SSH] Copied 776,265 bytes.
      Expanded the channel window size to 4MB
      [09/27/18 02:53:36] [SSH] Starting agent process: cd "/home/test" && java  -jar remoting.jar -workDir /home/test
      Sep 27, 2018 6:54:09 AM org.jenkinsci.remoting.engine.WorkDirManager initializeWorkDir
      INFO: Using /home/test/remoting as a remoting work directory
      Both error and output logs will be printed to /home/test/remoting
      ERROR: null
      java.util.concurrent.CancellationException
      	at java.util.concurrent.FutureTask.report(FutureTask.java:121)
      	at java.util.concurrent.FutureTask.get(FutureTask.java:192)
      	at hudson.plugins.sshslaves.SSHLauncher.launch(SSHLauncher.java:904)
      	at hudson.slaves.DelegatingComputerLauncher.launch(DelegatingComputerLauncher.java:64)
      	at io.jenkins.docker.connector.DockerComputerConnector$1.launch(DockerComputerConnector.java:117)
      	at hudson.slaves.SlaveComputer$1.call(SlaveComputer.java:294)
      	at jenkins.util.ContextResettingExecutorService$2.call(ContextResettingExecutorService.java:46)
      	at jenkins.security.ImpersonatingExecutorService$2.call(ImpersonatingExecutorService.java:71)
      	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
      	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
      	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
      	at java.lang.Thread.run(Thread.java:748)
      [09/27/18 02:57:02] Launch failed - cleaning up connection
      Slave JVM has not reported exit code. Is it still running?
      [09/27/18 02:57:02] [SSH] Connection closed.
      
      
      

            ifernandezcalvo Ivan Fernandez Calvo
            durgadas Durgadas Kamath
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              Created:
              Updated:
              Resolved: