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waterfall_10467's avatar
waterfall_10467
Icon for Altostratus rankAltostratus
Dec 31, 2012

custom_extarnal_monitor

Hello Team,

 

I wonder if f5 is able to monitor to servers intermitently For example ; we have a pool and the pool has 4 members and f5 will take down them and up periodically example ;in 15 muntes

 

 

for example; member x down

 

and after 15 minutes member x up

 

and after 15 minutes member x down

 

 

 

Do you think How can we perform the monitoring ?

 

 

thank you in advance.

 

 

 

management
monitoring

12 Replies

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  • waterfall_10467's avatar
    waterfall_10467
    Icon for Altostratus rankAltostratus
    Dec 31, 2012

    Hello Stive,

     

     

    we want to monitor the back end servers via http monitor but as ı stayed above f5 will mark down the back end servers and 15 minutes later mark up so we will be monitor the back end servers periodically like down and 15 minutes later up and 15 minutes later down.

     

     

    how can we perform this via script

     

     

    please help me on this.

     

     

    thank you...

     

  • What_Lies_Bene1's avatar
    What_Lies_Bene1
    Icon for Cirrostratus rankCirrostratus
    Jan 02, 2013
    Can you post the configured send and receive strings? When the monitor marks the server(s) as down, can you check whether they are in fact responding by doing a telnet test from the BIG-IP to the relevant port and entering the send string.
  • nitass's avatar
    nitass
    Icon for Employee rankEmployee
    Jan 02, 2013
    f5 will mark down the back end servers and 15 minutes later mark up so we will be monitor the back end servers periodically like down and 15 minutes later up and 15 minutes later down.what are you going to do when traffic is coming but pool is down?

     

     

    besides external monitor, i think irule can make it too by calculating on time (e.g. mod). the following is discussion in the past. although it is not exactly what you are asking, it might be helpful.

     

     

    Schedule iRule

     

    https://devcentral.f5.com/community/group/aft/1179351/asg/50

     

     

    Schedule an iRule for specific date/time

     

    https://devcentral.f5.com/community/group/aft/13201/asg/51
  • waterfall_10467's avatar
    waterfall_10467
    Icon for Altostratus rankAltostratus
    Jan 02, 2013

    Hello,

     

    no receive string and send string with monitor you can just consider the http monitor also we don't wan to schecule any time on the irule because we just want to mark down some members of existing pool and so the other production members that are in the pool will not be affected like rejection or discarding . is that possible ?

     

     

    thank you

     

  • What_Lies_Bene1's avatar
    What_Lies_Bene1
    Icon for Cirrostratus rankCirrostratus
    Jan 10, 2013
    Can, I'm not quite clear on what your requirements are now. Can you please re-iterate with a bit more detail please?
  • waterfall_10467's avatar
    waterfall_10467
    Icon for Altostratus rankAltostratus
    Jan 15, 2013

    Hello Steve,

     

    suppose , there is a poool and that has 4 members ok. And then one of the members will marked down and up through script monitor.

     

     

    example: x member will be marked down then up then down and this processing periodically will be proceeded like 15 minutes.

     

     

    is it possible ? since I have not more info about scripting I need your support about this matter

     

     

    thank you in advance

     

  • What_Lies_Bene1's avatar
    What_Lies_Bene1
    Icon for Cirrostratus rankCirrostratus
    Jan 15, 2013
    Apologies but I'm still having problems understanding you I'm afraid. You want a script to mark Pool Members up and down on a periodic basis? If so, why?
  • waterfall_10467's avatar
    waterfall_10467
    Icon for Altostratus rankAltostratus
    Jan 17, 2013

    customer wants since they are able to do that on the netscaler. I wonder if we are able to do that ? is that posiible ? or is there a diffrent way for that?