Re: mod_proxy: When does a backend be considered as failed?

[dE <de.techno@xxxxxxxxx>]

On 07/25/16 17:47, Yann Ylavic wrote:

On Mon, Jul 25, 2016 at 5:18 AM, dE <de.techno@xxxxxxxxx> wrote:

Config --

[]

ProxyPass / balancer://localbalance/ failontimeout=on timeout=10 failonstatus=502

You are defining a balancer here, so the timeout= parameter relates to
the balancer (like the two others)
However for a balancer, the timeout= parameter is not a connection
timeout (like the one used with BalancerMember), but "the maximum time
to wait for a free worker/member" (e.g. when all the workers are busy
*or* in error state, the default being to not wait).
Thus, your are hitting this timeout for each connection in your test.

You probably should use something like this instead:
  ProxyPass / balancer://localbalance/ failontimeout=on
failonstatus=502 forcerecovery=off

and leave the (connection) timeout setting alone in the BalancerMember
(as you did already):
  BalancerMember balancer://localbalance/ http://[fc00::1:4]/
timeout=10 retry=600

Regards,
Yann.

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Yes, as you said I did try that before --

BalancerMember balancer://localbalance/ http://[fc00::1:4]/ timeout=10
ProxyPass / balancer://localbalance/ failontimeout=on

I even tried the retry (set to 600) and forcerecovery parameter.

Have you ever tried this in the tests that I'm doing (SIGSTOP apache)?