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TJ_Vreugdenhil's avatar
TJ_Vreugdenhil
Icon for Cirrus rankCirrus
Dec 28, 2011

Monitor send string

I am creating one pool with two pool members with two different IP's and ports, but I want to create a monitor that will check for both pool member host names? The problem is the VIP is going to be created in the future, so I can't match the URL name just yet. Is there a way to do this, or an alternative way? The config below is as follows on 10.2 software:

 

 

b monitor test_pool_monitor '{

 

defaults from https

 

interval 30

 

timeout 91

 

password "pass"

 

recv "Server Up"

 

send "GET /monitor/bigip.html HTTP/1.1 \nHost:examplesite1.test.com \nConnection: Close\n\n\r\n"

 

username "joe"

 

}'

 

 

b pool test_pool '{

 

monitor all test_pool_monitor

 

members {

 

1.1.1.1:7111

 

2.2.2.2:7112

 

}

 

}'

 

 

 

DNS: examplesite1 IP: 1.1.1.1 Ports: 7111

 

DNS: examplesite2 IP: 2.2.2.2 Ports: 7112

 

 

 

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6 Replies

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  • nitass's avatar
    nitass
    Icon for Employee rankEmployee
    Dec 28, 2011
    not sure if i understand correctly. if you want to use different health monitor parameter, e.g. http host header, for each pool member, why won't you assign the monitor to pool member level instead of pool one?

    e.g. 

    [root@ve1023:Active] config  b pool foo list
pool foo {
   members {
      200.200.200.101:80 {
         monitor myhttp1
      }
      200.200.200.102:80 {
         monitor myhttp2
      }
   }
}
  • nitass's avatar
    nitass
    Icon for Employee rankEmployee
    Dec 29, 2011
    just curious since both pool members belong to one virtual server, shouldn't they support a common http host header e.g. examplesite.test.com?
  • TJ_Vreugdenhil's avatar
    TJ_Vreugdenhil
    Icon for Cirrus rankCirrus
    Dec 29, 2011
    The pool members do not belong to a Virtual Server as of yet. The only information I have at this point is the DNS names:

     

     

    lclte00hpuiq1p.test.com

     

    lclte00ipuiq1p.test.com

     

     

    I do not believe I can match a common http host header without a VS, or any Header field? It would be nice to use one monitor for one pool, because I have many to do like this, but I do not see how.

     

     

    I was thinking it could look like this:

     

     

    b monitor test_pool_monitor_7111 '{

     

    defaults from https

     

    interval 30

     

    timeout 91

     

    password "pass"

     

    recv "Server Up"

     

    send "GET /monitor/bigip.html HTTP/1.1 \nHost:lclte00hpuiq1p.test.com \nConnection: Close\n\n\r\n"

     

    username "joe"

     

    }'

     

     

     

    b monitor test_pool_monitor_7112 '{

     

    defaults from https

     

    interval 30

     

    timeout 91

     

    password "pass"

     

    recv "Server Up"

     

    send "GET /monitor/bigip.html HTTP/1.1 \nHost:lclte00ipuiq1p.test.com \nConnection: Close\n\n\r\n"

     

    username "joe"

     

    }'

     

     

     

    b pool test_pool '{

     

    members {

     

    1.1.1.1:7111

     

    monitor all test_pool_monitor_7111

     

    2.2.2.2:7112

     

    monitor all test_pool_monitor_7112

     

    }

     

    }'

     

     

     

  • Hamish's avatar
    Hamish
    Icon for Cirrocumulus rankCirrocumulus
    Dec 29, 2011
    You can use 1 monitor for HTTP/1.1 if the host header used is the same between the two hosts. It doesn't matter if a VS is created yet or not. That's independent. There's no connection between the VS and the monitor except that the status of the VS inherits the status of the default pool which is a result of the monitors results.

     

     

    So if both your pool members respond with a host: header of mybestwebsiteever.com use that... or use what they think it will be when it goes live... As long as the host likes it, you're golden.

     

     

    H