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Vazman_95895's avatar
Vazman_95895
Icon for Nimbostratus rankNimbostratus
Dec 17, 2007

No nodes available

We are getting the following messages on some of our F5's. The pool has 5 servers out of which 3 are active. The servers are up and running.

 

 

SNMP VIP_UNAVAILABLE kernel: No nodes available for vip 10.10.1.134:80

 

 

Any reason, why the F5 would be seeing these servers as down??

 

 

Thanks
management
monitoring
  • hoolio's avatar
    hoolio
    Icon for Cirrostratus rankCirrostratus
    Dec 17, 2007
    That would be due to a BIG-IP monitor not getting a successful response back from the servers within the timeout period. You can check the /var/log/ltm log file for additional info. If you need more detail on the monitoring requests and responses, you can enable debug logging for the monitoring daemon, bigd, using:

     

     

    b db Bigd.Debug "enable"

     

     

    By default, the logging is written to /var/log/bigdlog.

     

     

    You may find that your interval and timeout aren't set optimally. Normally, the interval should be greater than 5 seconds. The timeout should be set to 3 x interval + 1 second. The default interval / timeout are 5 / 31.

     

     

    Aaron
  • Eashwar_25707's avatar
    Eashwar_25707
    Icon for Nimbostratus rankNimbostratus
    Apr 14, 2008
    We are getting the following messages on some of our F5's

     

    Any reason, why the F5 would be seeing these servers as down??

     

     

    VIP_UNAVAILABLE :: NJ2 kernel: No nodes available for vip 216.74.138.233:81