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NzYme_68513's avatar
NzYme_68513
Icon for Nimbostratus rankNimbostratus
Oct 22, 2010

Restart a service when a pool member is marked 'down'?

Hi. I'm new to the F5 community. I'm reading all I can and I'm lucky enough to have some hardware to run small tests on as well. My manager is asking me if the F5 can start a windows service once the F5 knows it's down. I basically forwarded him this:

 

 

 

Action on Service Down setting specifies the action that you want the BIG-IP system to take when the service on a pool member becomes unavailable.

 

 

-- The BIG-IP system takes no action. This is the default action.

 

-- The BIG-IP system sends an RST (TCP-only) or ICMP message.

 

 

-- The BIG-IP system simply cleans up the connection.

 

-- The BIG-IP system selects a different node.

 

Reselect action in certain cases only, such as:

 

with address translation disabled.

 

Protocol setting is set to UDP.

 

 

 

Action on Service Down setting and select a value from the list.

 

 

 

 

I suggested we use priority group activation but apparently only one server can have their services running at a time. Am I right in saying there's no way the F5 can start a windows service when a member is deemed 'down'?

 

management
monitoring

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  • hooleylist's avatar
    hooleylist
    Icon for Cirrostratus rankCirrostratus
    Oct 22, 2010
    Hi NzYme,

     

     

    Here is a link to a related post. I think Deb's suggestion of doing this on the load balanced server itself might be the most efficient method.

     

     

    Monitoring a Microsoft Windows Service

     

    http://devcentral.f5.com/Forums/tabid/1082223/asg/44/showtab/groupforums/aff/32/aft/32382/afv/topic/Default.aspx

     

     

    Aaron
  • hwidjaja_37598's avatar
    hwidjaja_37598
    Icon for Altostratus rankAltostratus
    Oct 22, 2010
    You might be able to use OpenPegasus to give F5 ability to 'talk' to windows server using WMI and let syslog-ng trigger the script when a member is deemed down. The script should use WMI to start the service.

     

     

    Pegasus is an open-source implementationof the DMTF CIM and WBEM standards. For more info, go to http://www.openpegasus.org/