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g3neration_3120's avatar
g3neration_3120
Icon for Nimbostratus rankNimbostratus
Jul 15, 2008

Load Balancing Issue

Hi,

 

 

I have a load balancing issue where traffic is disproportionately hitting one server instead of being load balanced between the two members in the pool. The load balancing method is round robin and persistence has been enabled. Any help would be great. Thanks.
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  • hoolio's avatar
    hoolio
    Icon for Cirrostratus rankCirrostratus
    Jul 15, 2008
    Hello,

     

     

    What is the persistence method you're using? Can you post the persistence profile settings by running 'b profile PERSIST_PROFILE_NAME list'?

     

     

    Roughly how many connections are on each pool member? I assume the higher number of connections is due to one or more clients matching a persistence record. This may be a lot of AOL users connecting from the same pool of proxy servers or another group of clients making requests from behind the same proxy. If so, using cookie insert persistence and a OneConnect profile would help alleviate the clumping.

     

     

    You may want to consider changing the load balancing method from round robin to least connections or another algorithm that takes into account the number of active connections to each pool member. For more info on the load balancing alogrithms, take a look at the pool settings in the LTM config guide for your version. Here is the 9.3 chapter (Specifying the load balancing method Click here).

     

     

    Aaron