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JS54_315899's avatar
JS54_315899
Icon for Nimbostratus rankNimbostratus
Mar 31, 2017

How can I change the idle timeout of the active connections on the member disabled?

Hi Expert,

 

 

I need your help to goal the following condition;

 

Environment:

 

LTM just is balancing the UDP traffic among 3 pool members. The connection idle timeout is 1 hours. I disable the poom member to maintain the real servers once a month.

 

 

 

Conditions:

 

When I disable specific pool member (e.g. the pool member1), LTM wait till the pool member1 proceed the active connection on it. but it means I sometimes wait more than 1 hour as this LTM LB mechanism. I also don't want that all of active connection on the pool member1.

 

So, I am looking for the way change the idle timeout of active connections on pool member1 from 1 hour to 5 minutes, if I disable the pool member1.

 

 

 

Does anyone give some advice to me?

 

I would appreciate your any input.

 

Thank you

 

J.Soon.

 

application delivery
iRules
LTM

4 Replies

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  • keshav_163381's avatar
    keshav_163381
    Icon for Nimbostratus rankNimbostratus
    Mar 31, 2017

    Please remove the connection from the connection table with delete sys connection command.

     

    delete /sys connection ss-server-addr 1.1.1.10 ss-server-port 80

     

  • JS54_315899's avatar
    JS54_315899
    Icon for Nimbostratus rankNimbostratus
    Mar 31, 2017

    Hi Arora,

     

    Thank you for your reply. My customer does not want to delete active connections on the member disabled, because that impact to their service. So, I am looking for the way to change idle timeout of active connections on the member disabled.

     

  • keshav_163381's avatar
    keshav_163381
    Icon for Nimbostratus rankNimbostratus
    Mar 31, 2017

    I think you can achieve this by creating a rule for server side connected

     

    Please modify this as per your understanding when HTTP_REQUEST {

     

    if { (([HTTP::host] == "abc.com") or ([HTTP::host] == "cdf.com")) and ([HTTP::uri] ==

     

    "/poodle") } {

     

    IP::idle_timeout 86400

     

    set serverside_idle_timeout 1

     

    } }

     

    when SERVER_CONNECTED {

     

    if {$serverside_idle_timeout} {

     

    IP::idle_timeout 86400

     

    }

     

    }

     

  • kubatrak_52714's avatar
    kubatrak_52714
    Icon for Nimbostratus rankNimbostratus
    Mar 31, 2017

    You can't change a timeout for just specific member because that is inherited by the profile settings (persistence, service, protocol, etc).