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MarkM_63051's avatar
MarkM_63051
Icon for Nimbostratus rankNimbostratus
Nov 23, 2011

Removing the last pool member

Hello,

 

 

I found a topic discussing the problem of creating an empty pool. Bottom line, you really can't unless you add a null member. My question concerns the sequence of events that happen when you remove the last member of a pool. What happens? Is it permissible and then you need to delete the pool? Does F5 throw an exception? Does F5 delete the pool also?

 

 

Thanks,

 

 

Mark

 

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  • Joe_Pruitt's avatar
    Joe_Pruitt
    Nov 23, 2011
    It's not really a null member, you need to pass in an array size of zero for the members parameter indicating that there are no members for the specific pool. That is not the same as passing in size 1 with a null value.

     

     

    Pools are just buckets and can be empty. If you remove the last member in the pool, it will not delete the pool, it just won't have any members in it. A use case for this would be if you want to use an iRule to control the way connections flow to members, you can use the "node" command to target a connection to a specific node defined in the system.

     

     

     

    Hope that helps...

     

     

     

    -Joe