On Wed, Jun 26, 2019 at 11:29:47AM +1000, Igor Cicimov wrote:
> Those maxconn values are per frontend so if your backend is referenced by
> two frontends you might end up with a limit of 2 x maxconn on the backend.
> Hence it is recommended to set maxconn per server too to protect from
> situation like this. So read about maxconn and even fullconn in the server
> config and tuning guide for more details.

thanks for the precision. I however later discovered in the code:

ha_warning("Proxy %s stopped (FE: %lld conns, BE: %lld conns).\n",
        p->id, p->fe_counters.cum_conn, p->be_counters.cum_conn);

which means this is simply a cumulative counter displayed in the log.

Best,
-- 
William

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