# REE & application frozen gems **URL:** \ **Category:** Rails\ **Created:** [June 5, 2010, 5:21am UTC](https://www.ruby-forum.com/t/ree-application-frozen-gems/189684 "2010-06-05T05:21:06Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![pakothawade](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/ba9def/32.png) [@pakothawade](https://www.ruby-forum.com/u/pakothawade)\ **Post date:** [June 5, 2010, 5:21am UTC](https://www.ruby-forum.com/t/ree-application-frozen-gems/189684/1 "2010-06-05T05:21:06Z")
I have the following versions of ruby installed in my production env. ubuntu ~ \> /usr/bin/ruby -v ruby 1.8.7 (2010-01-10 patchlevel 249) [x86\_64-linux] ubuntu ~ \> /opt/ruby-enterprise-1.8.7-2010.01/bin/ruby -v ruby 1.8.7 (2009-12-24 patchlevel 248) [x86\_64-linux], MBARI 0x6770, Ruby Enterprise Edition 2010.01 I have frozen my gems in my application at /home/deploy/rails\_apps/ my\_app/vendor Do i need to reinstall all frozen gems of my application again in REE so that apache+passenger can pick it up? Where does apache look for gems? Wont it look into my vendor directory where i have frozen gems? ---
**Author:** ![pakothawade](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/ba9def/32.png) [@pakothawade](https://www.ruby-forum.com/u/pakothawade)\ **Post date:** [June 5, 2010, 12:28pm UTC](https://www.ruby-forum.com/t/ree-application-frozen-gems/189684/2 "2010-06-05T12:28:25Z")
On Jun 5, 4:20 am, tispratik [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > I have frozen my gems in my application at /home/deploy/rails\_apps/ > my\_app/vendor > > Do i need to reinstall all frozen gems of my application again in REE > so that apache+passenger can pick it up? No - that’s the whole point of freezing a gem into your app: you don’t have to install it anywhere because it’s bundled in with your app Fred ---
**Author:** ![pakothawade](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/ba9def/32.png) [@pakothawade](https://www.ruby-forum.com/u/pakothawade)\ **Post date:** [June 6, 2010, 6:24am UTC](https://www.ruby-forum.com/t/ree-application-frozen-gems/189684/3 "2010-06-06T06:24:46Z")
but the gems installed in the vendor directory are from my development environment. In my dev env, i dont have REE installed, so those gems were installed and frozen using the dev ruby compiler. Shouldn’t i install the gems using REE and then freeze them in prod env? ---
**Author:** ![pakothawade](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/ba9def/32.png) [@pakothawade](https://www.ruby-forum.com/u/pakothawade)\ **Post date:** [June 6, 2010, 7:37am UTC](https://www.ruby-forum.com/t/ree-application-frozen-gems/189684/4 "2010-06-06T07:37:27Z")
Pratik Khadloya wrote: > but the gems installed in the vendor directory are from my development > environment. > In my dev env, i dont have REE installed, so those gems were installed > and frozen using the dev ruby compiler. So what? > Shouldn’t i install the gems using REE and then freeze them in prod > env? No. There’s no need. Ruby is not compiled, so REE and MRI can run from the same source files. ## Best, Marnen Laibow-Koser [http://www.marnen.org](http://www.marnen.org) removed\_email\_address@domain.invalid ---
**Author:** ![pakothawade](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/ba9def/32.png) [@pakothawade](https://www.ruby-forum.com/u/pakothawade)\ **Post date:** [June 6, 2010, 11:46am UTC](https://www.ruby-forum.com/t/ree-application-frozen-gems/189684/5 "2010-06-06T11:46:03Z")
On Jun 6, 6:37 am, Marnen Laibow-Koser [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > Pratik Khadloya wrote: > > > Shouldn’t i install the gems using REE and then freeze them in prod > > env? > > No. There’s no need. Ruby is not compiled, so REE and MRI can run from > the same source files. The only exception being if the gem had a native extension, in which case there’s a rake task to rebuild it ( rake gems:build off the top of my head) Fred ---
**Author:** ![pakothawade](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/ba9def/32.png) [@pakothawade](https://www.ruby-forum.com/u/pakothawade)\ **Post date:** [June 6, 2010, 6:00pm UTC](https://www.ruby-forum.com/t/ree-application-frozen-gems/189684/6 "2010-06-06T18:00:04Z")
Oh ok! I get it now, actually was confused by this post [http://blog.perplexedlabs.com/2009/01/13/installing-ruby-enterprise-edition-with-phusion-passenger/](http://blog.perplexedlabs.com/2009/01/13/installing-ruby-enterprise-edition-with-phusion-passenger/) where it says that you need to reinstall all gems and had will\_paginate in the list. I dont think will\_paginate requires any native extensions. 1. Ruby is not compiled. 2. Need to re-install only those gems which have a native extension. 1 more thing, do i need to set the path variable to point to /opt/ruby- enterprise-1.8.7-2010.01/bin/ruby instead of /usr/bin/ruby, so that any operations i do on my application residing at /home/deploy/ rails\_apps/my\_app the REE is used?