There was a hard ceiling on how much the midtier could handle with the 32-bit JVM (because memory was scarce), but that, in theory, is no longer the case with the 64-bit JVMs. Using a 64-bit JVM with the midtier will require that you properly tune your JVM though, if you expect to get comparable performance from it that you do with a 32-bit JVM.
Axton Grams On Wed, May 16, 2012 at 5:46 PM, Brian Goralczyk <bgoralc...@gmail.com>wrote: > Mike, > > I am sorry, I meant that the AR server should be able to handle it. I > would go with the 150 limit per mid tier. I haven't tested it to see > how many it can actually run, but it can be pretty frustrating if you > don't have enough of them to handle the load. I believe that you only > need one AR server based on concurrent users SOLELY. > > Fail-over and disaster recovery is a different ball of wax. Server > groups are a great way to protect yourself. > > Based on what you are saying I would say a minimal setup would be 2 > good webservers to handle the mid tier, one app server and one db > server. But keep in mind that is minimal. Depending on how much > money you have to spend I would double everything to start. > > Patrick has a pretty good recommendation. > > > Brian Goralczyk > Phone 574-643-1144 > Email bgoralc...@gmail.com > > > On Wed, May 16, 2012 at 3:07 PM, Hocks, Mike (DOT) > <mike.ho...@state.mn.us> wrote: > > Brian, thanks a lot for the info...so it sounds like the rule of > estimating 150 concurrent connections per mid-tier is way off base...we are > running a quad core xeon proc with 24GB of RAM w/ Windows 2008 64BIT ... > sounds like we are in good shape our environment? We do have Mid-Tier and > the AR System all on the same box (pre-config stack install) > > > > Thanks again, > > -Mike > > > > -----Original Message----- > > From: Action Request System discussion list(ARSList) [mailto: > arslist@ARSLIST.ORG] On Behalf Of Brian Goralczyk > > Sent: Wednesday, May 16, 2012 2:51 PM > > To: arslist@ARSLIST.ORG > > Subject: Re: Load Balancer & Mid Tiers > > > > I would say that 500 concurrent users isn't to much for some servers to > handle. It all depends on your hardware and your code. If you are using > out of the box, what are those 500 users going to be doing? If it is > custom code, how cleanly is it written. Performance testing and > improvement is a job all on it's own. But I have had systems that have > dealt with that level of load without a problem. The biggest issue is the > single point of failure mentioned. > > > > > > Brian Goralczyk > > Phone 574-643-1144 > > Email bgoralc...@gmail.com > > > > > > On Wed, May 16, 2012 at 1:28 PM, Hocks, Mike (DOT) < > mike.ho...@state.mn.us> wrote: > >> Interesting, we need to build out our environment for 500 concurrent > connections, do you think we should plan for more AR Servers to accommodate > 500 concurrent connection? > >> > >> -----Original Message----- > >> From: Action Request System discussion list(ARSList) > >> [mailto:arslist@ARSLIST.ORG] On Behalf Of pritch > >> Sent: Wednesday, May 16, 2012 2:22 PM > >> To: arslist@ARSLIST.ORG > >> Subject: Re: Load Balancer & Mid Tiers > >> > >> You can, but then you still have a potential single point of failure > (or bottleneck). > >> > >> ----- Original Message ----- > >> From: "Andrew C Goodall" <ago...@jcp.com> > >> To: arslist@ARSLIST.ORG > >> Sent: Wednesday, May 16, 2012 3:11:15 PM > >> Subject: Re: Load Balancer & Mid Tiers > >> > >> You can have multiple point to one. > >> > >> Regards, > >> > >> Andrew C. Goodall > >> Software Engineer > >> Development Services > >> ago...@jcpenney.com > >> jcpenney > >> 6501 Legacy Drive > >> Plano, TX 75024 > >> jcp.com > >> > >> -----Original Message----- > >> From: Action Request System discussion list(ARSList) > >> [mailto:arslist@ARSLIST.ORG] On Behalf Of Mike Hocks > >> Sent: Wednesday, May 16, 2012 2:06 PM > >> To: arslist@ARSLIST.ORG > >> Subject: Load Balancer & Mid Tiers > >> > >> A question regarding a Load balancer and multiple Mid Tiers .... Can I > have multiple mid tiers point to 1 AR Server or do I need to have an AR > Server for each Mid Tier? > >> > >> We are running the 7.6.04 from the Pre Config Stack Installer on a > >> Windows 2008 Server with a SQL backend > >> > >> Thank you! > >> -Mike > >> > >> ______________________________________________________________________ > >> _________ UNSUBSCRIBE or access ARSlist Archives at www.arslist.org > >> attend wwrug12 www.wwrug12.com ARSList: "Where the Answers Are" > >> The information transmitted is intended only for the person or entity > to which it is addressed and may contain confidential and/or privileged > material. If the reader of this message is not the intended recipient, you > are hereby notified that your access is unauthorized, and any review, > dissemination, distribution or copying of this message including any > attachments is strictly prohibited. If you are not the intended recipient, > please contact the sender and delete the material from any computer. > >> > >> > >> ______________________________________________________________________ > >> _________ UNSUBSCRIBE or access ARSlist Archives at www.arslist.org > >> attend wwrug12 www.wwrug12.com ARSList: "Where the Answers Are" > >> > >> ______________________________________________________________________ > >> _________ UNSUBSCRIBE or access ARSlist Archives at www.arslist.org > >> attend wwrug12 www.wwrug12.com ARSList: "Where the Answers Are" > >> > >> ______________________________________________________________________ > >> _________ UNSUBSCRIBE or access ARSlist Archives at www.arslist.org > >> attend wwrug12 www.wwrug12.com ARSList: "Where the Answers Are" > > > > > _______________________________________________________________________________ > > UNSUBSCRIBE or access ARSlist Archives at www.arslist.org attend > wwrug12 www.wwrug12.com ARSList: "Where the Answers Are" > > > > > _______________________________________________________________________________ > > UNSUBSCRIBE or access ARSlist Archives at www.arslist.org > > attend wwrug12 www.wwrug12.com ARSList: "Where the Answers Are" > > > _______________________________________________________________________________ > UNSUBSCRIBE or access ARSlist Archives at www.arslist.org > attend wwrug12 www.wwrug12.com ARSList: "Where the Answers Are" > _______________________________________________________________________________ UNSUBSCRIBE or access ARSlist Archives at www.arslist.org attend wwrug12 www.wwrug12.com ARSList: "Where the Answers Are"
