# JRuby on a huge project **URL:** \ **Category:** Ruby\ **Created:** [August 6, 2007, 9:30am UTC](https://www.ruby-forum.com/t/jruby-on-a-huge-project/196420 "2007-08-06T09:30:24Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Dafi-Duck](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/0ea827/32.png) [@Dafi-Duck](https://www.ruby-forum.com/u/Dafi-Duck)\ **Post date:** [August 6, 2007, 9:30am UTC](https://www.ruby-forum.com/t/jruby-on-a-huge-project/196420/1 "2007-08-06T09:30:24Z")
Hi, I am working on a new project built on websphere portal. I need to be able to have about 2 million concurrent users. If I use JRuby, will it work? Can JRuby work well on websphere portal? Can JRuby work with porltets? Please help… ---
**Author:** ![Dafi-Duck](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/0ea827/32.png) [@Dafi-Duck](https://www.ruby-forum.com/u/Dafi-Duck)\ **Post date:** [August 6, 2007, 4:30pm UTC](https://www.ruby-forum.com/t/jruby-on-a-huge-project/196420/2 "2007-08-06T16:30:26Z")
Dafi-Duck wrote: > Hi, > > I am working on a new project built on websphere portal. > I need to be able to have about 2 million concurrent users. > If I use JRuby, will it work? > Can JRuby work well on websphere portal? > Can JRuby work with porltets? > > Please help… The best advice I can give you is to hire a professional performance engineering team – this isn’t something you’re going to be able to learn on a mailing list staffed by volunteers. I’ll let Charlie answer the jRuby-specific questions, but I’ll tell you up front as a working performance engineer that 2 million concurrent users is a _massive_ undertaking. I can’t even begin to list the _hundreds_ of ways you can screw up performance on something like that, let alone the other challenges that await in the areas of usability, security, privacy, etc. Let me know when you’ve spent your first couple million dollars and have nothing to show for it. ;( Seriously, though – unless you’re the emperor of the world, you really ought to start with something a little less challenging. Get 20 users up and running on a server solid as a rock, then scale that by 100,000. ;( ---
**Author:** ![Dafi-Duck](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/0ea827/32.png) [@Dafi-Duck](https://www.ruby-forum.com/u/Dafi-Duck)\ **Post date:** [August 6, 2007, 10:32pm UTC](https://www.ruby-forum.com/t/jruby-on-a-huge-project/196420/3 "2007-08-06T22:32:21Z")
On Mon, 6 Aug 2007, M. Edward (Ed) Borasky wrote: > when you’ve spent your first couple million dollars and have nothing to > show for it. ;( > > Seriously, though – unless you’re the emperor of the world, you really > ought to start with something a little less challenging. Get 20 users up > and running on a server solid as a rock, then scale that by 100,000. ;( No, actually, I’ll tell you right away: with JRuby you’re set. Take my word for it: everything is going to be allright. Don’t believe me? Why not? \*t – ---
**Author:** ![Dafi-Duck](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/0ea827/32.png) [@Dafi-Duck](https://www.ruby-forum.com/u/Dafi-Duck)\ **Post date:** [August 7, 2007, 12:16am UTC](https://www.ruby-forum.com/t/jruby-on-a-huge-project/196420/4 "2007-08-07T00:16:30Z")
Dafi-Duck wrote: > Hi, > > I am working on a new project built on websphere portal. > I need to be able to have about 2 million concurrent users. > If I use JRuby, will it work? I thought I replied on google groups somewhere, but I can’t find it now. At any rate… Yes, JRuby will “work”. Whether it (or Rails in any form) will scale to 2 million concurrent users is a huge question mark. You’re talking about whole server farms to handle that, and JRuby isn’t likely to be your biggest problem. Perhaps you mean 2 million registered users and some much smaller percentage of concurrent users? > Can JRuby work well on websphere portal? It should deploy just fine on any webapp server. There are some folks using WebSphere. > Can JRuby work with porltets? I don’t know portlets well enough to know for sure, but with it handling requests like any typical Java webapp, it should be fine, yes? - Charlie ---
**Author:** ![Dafi-Duck](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/0ea827/32.png) [@Dafi-Duck](https://www.ruby-forum.com/u/Dafi-Duck)\ **Post date:** [August 7, 2007, 12:38am UTC](https://www.ruby-forum.com/t/jruby-on-a-huge-project/196420/5 "2007-08-07T00:38:32Z")
On 8/6/07, Charles Oliver N. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > Yes, JRuby will “work”. Whether it (or Rails in any form) will scale to > 2 million concurrent users is a huge question mark. You’re talking about > whole server farms to handle that, and JRuby isn’t likely to be your > biggest problem. Perhaps you mean 2 million registered users and some > much smaller percentage of concurrent users? Out of curiosity, are there any sites in the world that handle 2 million _concurrent_ users? That seems absolutely wild to me, and it seems like any service that would have such a high load (maybe a cable company’s software or something) would be decentralized. ---
**Author:** ![Dafi-Duck](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/0ea827/32.png) [@Dafi-Duck](https://www.ruby-forum.com/u/Dafi-Duck)\ **Post date:** [August 7, 2007, 1:55am UTC](https://www.ruby-forum.com/t/jruby-on-a-huge-project/196420/6 "2007-08-07T01:55:39Z")
On Tue, 7 Aug 2007 07:37:45 +0900, Gregory B. wrote: > Out of curiosity, are there any sites in the world that handle 2 > million _concurrent_ users? That seems absolutely wild to me, and it > seems like any service that would have such a high load (maybe a cable > company’s software or something) would be decentralized. AOL used to handle 1.5M simultaneous, not counting AIM users… I imagine it’s dropped a bit in the past few years, though. Jay L. ---
**Author:** ![Dafi-Duck](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/0ea827/32.png) [@Dafi-Duck](https://www.ruby-forum.com/u/Dafi-Duck)\ **Post date:** [August 7, 2007, 12:54am UTC](https://www.ruby-forum.com/t/jruby-on-a-huge-project/196420/7 "2007-08-07T00:54:33Z")
I’d say the 2M claim is pure simple BS. Anyone who’s gonna make such a site, would know the deal. This is question is more like " Does jruby scale ?" - in a totally twisted way ( and kinda lame ). ---
**Author:** ![Dafi-Duck](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/0ea827/32.png) [@Dafi-Duck](https://www.ruby-forum.com/u/Dafi-Duck)\ **Post date:** [August 8, 2007, 7:10am UTC](https://www.ruby-forum.com/t/jruby-on-a-huge-project/196420/8 "2007-08-08T07:10:48Z")
Gregory B. : > On 8/6/07, Charles Oliver N. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > > Out of curiosity, are there any sites in the world that handle 2 > > million _concurrent_ users? That seems absolutely wild to me, and it > > seems like any service that would have such a high load (maybe a cable > > company’s software or something) would be decentralized. Well, yes there are. ebay & [mySpace.com](http://mySpace.com). The problem is that I need to look into the future. Can JRuby work with portlets and will it still be relevant in a year (or will groovy). Anyway, if ruby can’t work with portlets, than there is nothing to discuss…