Virtual Server Connetion Limit vs Pool member connection Limit

Hi Zoe, I'll throw in some ideas that I would consider myself.

1. If you want to limit incoming clientside connections, apply a connection limit on each of the Pool Members. A limit on a Virtual Server is not that good since there will be no true load-balancing if persistency is used. Some nodes will always have more connections than others.

    

    

   Use the override option if needed but in this case you should slightly lower the Connection Limit you set per Pool Member (-15% or -20%). i.e If your Pool Member can sustain 1k connections, reduce the Connection Limit to 850 or less if you use the override option.

    

    

2. The TCP request queue is something you may consider as the last resort. If by any means possible, see if you can add more pool members to suppress the need of creating a queue. If you want to proceed by creating a TCP request queue, I'd recommend setting a Queue Limit not higher than 25% of the Connection Limit of a single pool member.