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From Yann Ylavic <>
Subject Re: [PATCH] Balancers, VirtualHost and ProxyPass
Date Fri, 12 Dec 2014 11:08:26 GMT
Hi Jan,

On Fri, Dec 12, 2014 at 9:44 AM, Jan Kaluža <> wrote:
> On 12/11/2014 03:05 PM, Plüm, Rüdiger, Vodafone Group wrote:
>> Looks fine in general. Details:
> I hope I've finally fixed everything now :), see the attached patch please.

Aren't the following parameters missing for the merge:
    unsigned int    max_attempts_set:1;
    unsigned int    vhosted:1;
    unsigned int    inactive:1;
vhosted does not seem to be used, but seems a good candidate to
differentiate base vs vhost balancer.

Detail, sticky can't be NULL here:
+                if ((!b2->s->sticky || *b2->s->sticky == 0)
+                    && b1->s->sticky && *b1->s->sticky) {
+                    PROXY_STRNCPY(b2->s->sticky_path, b1->s->sticky_path);
+                    PROXY_STRNCPY(b2->s->sticky, b1->s->sticky);
+                }

I am (still) confused about the shallow copy:
>>   +                *b2 = *b1;

IIUC, Rüdiger's point is that base balancers' parameters shouldn't be
modified by vhosts specifics, because some vhosts (or RewriteRules)
may use the default ones.
But then why would they share (at runtime) the same lbmethod, members
list (dynamic with balancer-manager), backend connections (reslist,
same timeouts, reusability, states, any worker parameter).

IMHO there should be a deep copy here, that's another balancer, with
its own mutexes, own members having their own parameters, own


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