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On 20/11/17 15:55, Michael Schwartzkopff wrote:
> Am 20.11.2017 um 15:38 schrieb Hallvard Breien Furuseth:
>> I want a realserver to temporarily tell the load balancer to not
>> send new connections, but to keep old connections. This seems to
>> work, is it OK?
>
> Why you just set its weight to zero?
Then I'd have to mail the people running the load balancer.
Or am I missing some existing protocol which lets me do this?
Anyway, it seems simpler and cleaner if the realserver's state vs.
the load balancer is kept fully on the realserver - if iptables is a
clean solution, anyway:-) E.g. in the shutdown script, to disturb
clients as little as possible when taking a realserver down:
1. Block LVS probes temporarily.
2. Wait at least until the load balancer has noticed this, so new
clients won't get failed connections to this server, and short-
lived clients get a chance to finish without losing connections.
3. Shutdown / reboot / whatever.
--
Hallvard
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