No, that's gonna be your Mid-Tier LB that's doing that...maybe not the LB itself, but the login is most certainly at the MT level, not the app level.
On Thu, Feb 1, 2018 at 10:06 AM, Kevin M Candelaria <ke...@temple.edu> wrote: > > > While on this subject, and I apologize for the hijack. > > > > We currently have our midtiers load balanced as well as our apptiers. > > The apptiers and midtier load balancing uses sticky bit. > > > > If we do not close our browsers and try to log on after sessions expire we > get dumped into the midtier AR authentication page instead of the SAML > redirect until we clear cache. > > > > Perhaps a problem with apptier load balancing? > > > ------------------------------ > *From:* ARSList <arslist-boun...@arslist.org> on behalf of Randeep Atwal < > ratwals...@gmail.com> > *Sent:* Thursday, February 1, 2018 11:43 AM > *To:* ARSList > *Subject:* Re: Loadbalancer traffic distribution question > > From the Mid-Tier side, you also might want to review your setttings as > described here to work with the load balancer settings: > > https://docs.bmc.com/docs/display/public/ars81/Configuring+the+mid+tier+ > connection+pool > > https://docs.bmc.com/docs/brid91/en/configuring-the-mid- > tier-connection-pool-610403150.html > > On Thu, Feb 1, 2018 at 8:16 AM, Aspari Sunil Kumar <sunil.a...@gmail.com> > wrote: > >> There isn't much can be done in mid tier.this is purely LB team need to >> analyse what is going wrong . Need to sit with them and see why all the >> connections are going to one server in reality with the help of logs.. we >> had strange problem recently that on 2 AR servers we used to see same set >> of users .. we fixed this after lot of analysis with LB team >> >> >> On Feb 1, 2018 7:09 PM, "LJ LongWing" <lj.longw...@gmail.com> wrote: >> >> I've always preferred to use least connections personally, but from what >> I've read of the docs they recommend round robin....but round robin doesn't >> explain how your LB would be putting everyone on one node...it should >> literally go 1, 2, 3, 1, 2, 3 for new connections, and as you discussed, >> keep you on your current server if you are within the timeout, but you >> should have fairly even load across nodes....do they keep logs of the >> monitor activity so you can review if the monitor is reporting a server as >> down during specified periods? What monitor style are you using, ping, >> tcpip port, something else? >> >> On Thu, Feb 1, 2018 at 9:00 AM, Thomas Miskiewicz <tmisk...@gmail.com> >> wrote: >> >>> Hey LJ and thank you for the prompt reply. >>> >>> Talked to them already. We’re using round robin. I’m not an expert on LB >>> but my understanding was that we would have about an equal amount of users >>> on all AR Servers using it. >>> >>> The guy explained that once you connect there is a time out of 180 >>> seconds. If you do something within the 180 seconds you will end up on the >>> same server. If you don’t they will balance. Sounds plausible. Any yet >>> what’s the likelihood that people then will be balanced on the second box >>> and not the third. >>> >>> Does anyone there use round robin as well? How do your users get >>> distributed? What are you Mid Tier settings, connection settings in >>> particular? >>> >>> >>> Thomas >>> >>> >>> >>> On Feb 1, 2018, at 4:49 PM, LJ LongWing <lj.longw...@gmail.com> wrote: >>> >>> Thomas, >>> You'll need to work with the LB team to identify what distribution >>> method they are using....common options are 'round robin' in which it just >>> simply points everything at each server in turn, 'least connections' where >>> it tries to analyze how many are 'currently' connected to each node and >>> send the traffic to the one with the least current load....you'll also want >>> to check and verify that the monitor that you are using to determine if a >>> node is online or not is functioning properly because if the LB monitor >>> says a node is down, it obviously won't send any traffic to it...but if >>> that monitor is faulty, it might be up and running but not reporting as >>> online and can cause the scenario you described... >>> >>> On Thu, Feb 1, 2018 at 8:44 AM, Thomas Miskiewicz <tmisk...@gmail.com> >>> wrote: >>> >>>> Hi Listers, >>>> >>>> we got a physical load balancer before the Mid-Tier servers and a >>>> logical load balancer between the Mid Tier and our AR Servers. >>>> >>>> We noticed that on some days all the users land on only one AR Server. >>>> On other days two. What’s the reason behind it? What do we need to >>>> configure and to enforce equal distribution? >>>> >>>> >>>> Thomas >>>> -- >>>> ARSList mailing list >>>> ARSList@arslist.org >>>> https://mailman.rrr.se/cgi/listinfo/arslist >>>> >>> >>> -- >>> ARSList mailing list >>> ARSList@arslist.org >>> https://mailman.rrr.se/cgi/listinfo/arslist >>> >>> >>> >>> -- >>> ARSList mailing list >>> ARSList@arslist.org >>> https://mailman.rrr.se/cgi/listinfo/arslist >>> >>> >> >> -- >> ARSList mailing list >> ARSList@arslist.org >> https://mailman.rrr.se/cgi/listinfo/arslist >> >> >> >> -- >> ARSList mailing list >> ARSList@arslist.org >> https://mailman.rrr.se/cgi/listinfo/arslist >> >> > > -- > ARSList mailing list > ARSList@arslist.org > https://mailman.rrr.se/cgi/listinfo/arslist > >
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