Uploaded image for project: 'Jenkins'
  1. Jenkins
  2. JENKINS-18767

Checking java version fails - SSH slave not connecting

    XMLWordPrintable

Details

    • Bug
    • Status: Resolved (View Workflow)
    • Blocker
    • Resolution: Incomplete
    • ssh-slaves-plugin
    • None
    • Linux (RHEL master + Ubuntu slave)

    Description

      I've seen the issue as resolved (at least twice), but it still occurs for me.
      Despite having Java binary on slave and master, the SSH Slave plugin fails to find Java version.
      Error log:
      ====================
      [07/16/13 10:48:00] [SSH] Opening SSH connection to [...]:22.
      [07/16/13 10:48:00] [SSH] Authentication successful.

      [07/16/13 10:48:00] [SSH] The remote users environment is:
      [07/16/13 10:48:00] [SSH] Checking java version of java
      Couldn't figure out the Java version of java

      [07/16/13 10:48:00] [SSH] Checking java version of /usr/bin/java
      Couldn't figure out the Java version of /usr/bin/java

      [07/16/13 10:48:00] [SSH] Checking java version of /usr/java/default/bin/java
      Couldn't figure out the Java version of /usr/java/default/bin/java

      [07/16/13 10:48:00] [SSH] Checking java version of /usr/java/latest/bin/java
      Couldn't figure out the Java version of /usr/java/latest/bin/java

      [07/16/13 10:48:00] [SSH] Checking java version of /usr/local/bin/java
      Couldn't figure out the Java version of /usr/local/bin/java

      [07/16/13 10:48:00] [SSH] Checking java version of /usr/local/java/bin/java
      Couldn't figure out the Java version of /usr/local/java/bin/java

      [07/16/13 10:48:00] [SSH] Checking java version of /bin/java
      Couldn't figure out the Java version of /bin/java

      hudson.util.IOException2: Could not find any known supported java version in [java, /usr/bin/java, /usr/java/default/bin/java, /usr/java/latest/bin/java, /usr/local/bin/java, /usr/local/java/bin/java, /bin/java], and we also failed to install JDK as a fallback
      at hudson.plugins.sshslaves.SSHLauncher.resolveJava(SSHLauncher.java:557)
      at hudson.plugins.sshslaves.SSHLauncher.launch(SSHLauncher.java:493)
      at hudson.slaves.SlaveComputer$1.call(SlaveComputer.java:230)
      at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
      at java.util.concurrent.FutureTask.run(FutureTask.java:138)
      at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
      at java.lang.Thread.run(Thread.java:662)
      Caused by: java.io.IOException: Failed to detect the environment for automatic JDK installation. Please report this to jenkinsci-users@googlegroups.com:
      at hudson.plugins.sshslaves.SSHLauncher.attemptToInstallJDK(SSHLauncher.java:654)
      at hudson.plugins.sshslaves.SSHLauncher.resolveJava(SSHLauncher.java:555)
      ... 7 more
      [07/16/13 10:48:00] [SSH] Connection closed.

      Attachments

        Activity

          weakcamel Waldek M created issue -
          weakcamel Waldek M made changes -
          Field Original Value New Value
          Priority Major [ 3 ] Blocker [ 1 ]
          stephenconnolly Stephen Connolly made changes -
          Resolution Incomplete [ 4 ]
          Status Open [ 1 ] Resolved [ 5 ]
          rtyler R. Tyler Croy made changes -
          Workflow JNJira [ 150117 ] JNJira + In-Review [ 193424 ]

          People

            kohsuke Kohsuke Kawaguchi
            weakcamel Waldek M
            Votes:
            0 Vote for this issue
            Watchers:
            3 Start watching this issue

            Dates

              Created:
              Updated:
              Resolved: