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On Mon, 12 Aug 2002, Ramon Kagan wrote:
> HI,
>
> I've just started an imap/pop lvs service with 6 real servers.
>
> Weights were distributed using 4,4 and 1 for the remaining 4.
>
> The four weighted on servers are all identical hardware.
>
> In any case, I'm using wlc as the balancing schedule algorithm
>
> At this time the following is the table.
>
> Machine weight number of activeConn
> 4 311
> 4 307
> 1 78
> 1 79
> 1 78
> 1 205
>
> So I guess my question is: What's up with the last 1. Why is it getting
> so many connections?
>
> Persistence is set to 30 seconds.
>
I guess that this persistence might lead to some load imbalance. With
the persistence feature, all the connections from the same IP address
will be scheduled to the same server, before the persistent template
expires. So, maybe there are many users behind one IP address (a NAT
router) accessing your last server.
BTW, for the imap/pop service, maybe you don't need to use the persistent
feature.
Regards,
Wensong
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