Thank you all for your valuable contributions! We asked to remove the persistence on the LB and we no see an even distribution of users on all AR Server.
https://docs.bmc.com/docs/display/public/ars81/Configuring+a+load+balancer+with+a+firewall%2C+web+servers%2C+a+second+load+balancer%2C+and+multiple+AR+System+servers <https://docs.bmc.com/docs/display/public/ars81/Configuring+a+load+balancer+with+a+firewall,+web+servers,+a+second+load+balancer,+and+multiple+AR+System+servers> For versions 7.6.04 or later, BMC recommends configuring the load balancer that is located between the web servers and BMC Remedy AR System servers without setting a sticky bit. Thomas > On Feb 1, 2018, at 8:00 PM, LJ LongWing <[email protected]> wrote: > > But you can see in the screenshot that the maximum for each is in the 30's, > so from that it seems to me that the LB is able to recognize unique > individuals coming across and not treating the Mid-Tier server as a whole as > a single user....but I do agree with you that there is 0 reason to have the 3 > min 'sticky'....that will do nothing but cause sticking, which is unnecessary > for the ARServer, and potentially detrimental at the same time. > > On Thu, Feb 1, 2018 at 11:04 AM, Misi Mladoniczky <[email protected] > <mailto:[email protected]>> wrote: > Hi, > > So if you have say 4 mid-tiers and 4 remedy-servers and 100 users. > > The first load balancer will dirstribute the 100 users to something like 25 > per mid-tier server. > > The load balancer between mid-tiers and the remedy-servers will see only 4 > "users", which is the 4 mid-tiers. It is not inpossible that these 4 users > might end up with 1 or 2 remedy-servers only if you have a 180 second > timeout. If you have 100 real users chatting there will seldom be a 180 > second silence on any one mid-tier server, which is what would be required > for the mid-tier server to be directed at a new server. > > Why not do a complete round-robin thing without any 180 second timeout? > > Best Regards - Misi, RRR AB, http://www.rrr.se <http://www.rrr.se/> (ARSList > MVP 2011) > > Ask the Remedy Licensing Experts (Best R.O.I. Award at WWRUG10/11/12/13) > * RRR|License - Not enough Remedy licenses? Save money by optimizing. > * RRR|Log - Performance issues or elusive bugs? Analyze your Remedy logs > Find these products, and many free tools and utilities, at http://rrr.se > <http://rrr.se/> > > > > > > February 1, 2018 5:03 PM, "Thomas Miskiewicz" <[email protected] > <mailto:%22thomas%20miskiewicz%22%20%[email protected]%3E>> 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 <[email protected] >> <mailto:[email protected]>> 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 <[email protected] >> <mailto:[email protected]>> 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 >> [email protected] <mailto:[email protected]> >> https://mailman.rrr.se/cgi/listinfo/arslist >> <https://mailman.rrr.se/cgi/listinfo/arslist>-- >> ARSList mailing list >> [email protected] <mailto:[email protected]> >> https://mailman.rrr.se/cgi/listinfo/arslist >> <https://mailman.rrr.se/cgi/listinfo/arslist> > -- > ARSList mailing list > [email protected] <mailto:[email protected]> > https://mailman.rrr.se/cgi/listinfo/arslist > <https://mailman.rrr.se/cgi/listinfo/arslist> > > > -- > ARSList mailing list > [email protected] > https://mailman.rrr.se/cgi/listinfo/arslist
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