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N__197982's avatar
N__197982
Icon for Nimbostratus rankNimbostratus
Jan 17, 2018

Health monitor configuration help needed.

Folks, We are kind of struggling with some health monitor configuration on the F5. We need to query for a get command which will return the 200 HTTP code. However, this does not work.

 

The below command is being used for Send string: GET /jsp/Error.jsp HTTP/1.1\r\nHost: \r\nConnection: Close\r\n

 

We want to receive HTTP code 200

 

The "active member" returns the HTTP 200 correctly and show up, but the same happens with the "standby member" also shows up.

 

If I look at the Chrome debugging the "standby member" still returns code 200 due to a image getting loaded. This may be the issue.

 

However, if we query the nodes using CURL the "standby member" does give HTTP code 503.

 

Any suggestions for the resolution? How does the F5 actually query the members? How can I look at the code that are being return when the F5 queries the members?

 

Thanks!!! N.

 

application delivery
LTM

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  • BigD_300005's avatar
    BigD_300005
    Icon for Cirrostratus rankCirrostratus
    Jan 17, 2018

    To view the monitor log that is hitting your node: go into your pool > members > click on the node that is in the pool you want to check > There is a check box for Monitor Logging > check "Enable"

     

    The log file will be stored /var/log/monitors/

     

    If you just want to do an active/standby relationship for nodes, look into using priority groups on your pool.