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  1. Jenkins
  2. JENKINS-36519

Exception DNSStateTask "Could not recover we are Down"

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: Minor Minor
    • core
    • None
    • Ubuntu 16.04 LTS
      Jenkins ver. 2.7.1
      java version "1.7.0_79"
      Java(TM) SE Runtime Environment (build 1.7.0_79-b15)
      Java HotSpot(TM) 64-Bit Server VM (build 24.79-b02, mixed mode)

      It seems Jenkins is behaving strangely. I get the following stack traces when I start the latest LTS version.

      INFO: Jenkins is fully up and running
      Jul 07, 2016 11:59:08 PM javax.jmdns.impl.tasks.state.DNSStateTask run
      WARNING: Prober(fe80:0:0:0:dc4e:d109:3bcd:3585%2.local.).run() exception 
      java.io.IOException: Operation not permitted
              at java.net.PlainDatagramSocketImpl.send(Native Method)
              at java.net.DatagramSocket.send(DatagramSocket.java:697)
              at javax.jmdns.impl.JmDNSImpl.send(JmDNSImpl.java:1537)
              at javax.jmdns.impl.tasks.state.DNSStateTask.run(DNSStateTask.java:131)
              at java.util.TimerThread.mainLoop(Timer.java:555)
              at java.util.TimerThread.run(Timer.java:505)
      
      Jul 07, 2016 11:59:08 PM javax.jmdns.impl.JmDNSImpl __recover
      WARNING: RECOVERING
      Jul 07, 2016 11:59:08 PM javax.jmdns.impl.tasks.state.DNSStateTask run
      WARNING: Canceler(fe80:0:0:0:dc4e:d109:3bcd:3585%2.local.).run() exception 
      java.io.IOException: Operation not permitted
              at java.net.PlainDatagramSocketImpl.send(Native Method)
              at java.net.DatagramSocket.send(DatagramSocket.java:697)
              at javax.jmdns.impl.JmDNSImpl.send(JmDNSImpl.java:1537)
              at javax.jmdns.impl.tasks.state.DNSStateTask.run(DNSStateTask.java:131)
              at java.util.TimerThread.mainLoop(Timer.java:555)
              at java.util.TimerThread.run(Timer.java:505)
      
      Jul 07, 2016 11:59:13 PM javax.jmdns.impl.DNSStatefulObject$DefaultImplementation waitForCanceled
      WARNING: Wait for canceled timed out: DNS: fe80:0:0:0:dc4e:d109:3bcd:3585%2.local. state: canceling 1 task: null
      Jul 07, 2016 11:59:13 PM javax.jmdns.impl.JmDNSImpl __recover
      WARNING: fe80:0:0:0:dc4e:d109:3bcd:3585%2.local.recover() Could not recover we are Down!
      

      Also, please note I don't have IPv6 configured on my host. Only IPv4.

            Unassigned Unassigned
            sag47 Sam Gleske
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              Created:
              Updated: