From patrik.forsberg at globalconnect.se  Mon Jan 12 07:27:55 2026
From: patrik.forsberg at globalconnect.se (Patrik Forsberg)
Date: Mon, 12 Jan 2026 07:27:55 +0000
Subject: [RADIATOR] Question regarding MaxTargetHosts
In-Reply-To: <c7817f25-1047-4a31-a9f7-ebeff164f1c7@open.com.au>
References: <c7817f25-1047-4a31-a9f7-ebeff164f1c7@open.com.au>
Message-ID: <PRAP191MB206615085BE7ADB1E13AD52F9681A@PRAP191MB2066.EURP191.PROD.OUTLOOK.COM>

Hello,

Getting conflicting responses.. Jani Lahti says it wont reach Host 4 while you say it should ?

IMHO from reading the documentation it should reach Host 4 for the same reason you describe but just wanted to make sure that is how it's supposed to be working, I have yet to try this in a real-world scenario tho.

Regards,
Patrik Forsberg


> -----Original Message-----
> From: radiator <radiator-bounces at lists.open.com.au> On Behalf Of Heikki
> Vatiainen via radiator
> Sent: den 29 december 2025 14:18
> To: radiator at lists.open.com.au
> Subject: [RADIATOR] Question regarding MaxTargetHosts
> 
> Patrik Forsberg wrote:
> 
> > Have a small question regarding MaxTargetHosts in AuthBy Radius.
> > Will this limit the number of hosts ask regardless of the hosts status or if the
> hosts is unavailable for the moment will the request continue on without
> counting it against this counter ?
> 
> A working Host is looked up first and only those that should be working are
> counted against MaxTargetHosts limit. In other words, it doesn't count Hosts
> that are unavailable.
> 
> > Say I have MaxTargetHosts set to 2
> > Host 1 - is unavailable/down
> > Host 2 - is available - doesn't respond (request ignored) Host 3 - is
> > unavailable/down Host 4 - is available - responds with a reject
> >
> > Will it ever reach Host 4 as long as MaxTargetHosts is set to 2 ?
> 
> It will reach Host 4. Hosts 1 and 3 are never considered.
> 
> Hosts 1 and 3 are immediately skipped until the failure backoff time or Status-
> Server brings them up again. If you see different results, please let us know. It
> should act as a limit of trying hosts that should work.
> 
> With a number of retries and multiple hosts, the eventual response may come
> long after a client has already given up when some hosts should be working
> but they don't respond.
> 
> Thanks,
> Heikki
> 
> --
> Heikki Vatiainen
> Radiator Software, makers of Radiator
> Visit radiatorsoftware.com for Radiator AAA server software
> 
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