On 2/9/24 11:59 AM, jean-frederic clere wrote:
> Hi,
>
> I have noted to the reset() clean up too much in the balancers:
> mod_lbmethod_bybusyness.c for example does:
> +++
> for (i = 0; i < balancer->workers->nelts; i++, worker++) {
> (*worker)->s->lbstatus = 0;
> ap_proxy_set_busy_count(*worker, 0); /* BAD */
> }
> +++
> In fact reset() is called by ap_proxy_initialize_balancer() when a child
> process is created... Resetting the counters messes up
> the logic.
>
> Does it make sense to stop calling reset() from
> ap_proxy_initialize_balancer() or is it better to fix all reset()?
I am not sure what the original idea / intention of reset was. Until this is
clarified I would not remove the call to reset in
ap_proxy_initialize_balancer(). In ap_proxy_sync_balancer the call to it is
guarded by a check for the need_reset flag. Maybe this
gives a hint.
>
>
> There is another thing adding a new worker via /balancer-manager/ probably
> requires some kind of reset() otherwise all the load
> moves to the new worker which is not the best.... May be calling age() or
> triggering calls to age() can help.
Doesn't ap_proxy_sync_balancer take care of this which is called before
processing a request?
Regards
Rüdiger
