Rails - Aug 2006 - Versions Compatibility and RAILS_GEM_VERSION

Is there any problem with versions compatibility?

A project I started with 1.1.2 cannot run with 1.1.4.

Dreamhost recently updated their rails from 1.1.2 to 1.1.5 and 1.1.6. 
Needless to say I got "Application Error". However when I changed 
RAILS_GEM_VERSION to either 1.1.5 or 1.1.6, it works. (Haven''t made a 
thorough checking though.)

Here it seems there is no compatibility problem between 1.1.2 and 1.1.5 
/ 1.1.6.

So if, I started with one version (e.g. 1.1.2) will it still work after 
rails upgrade later (e.g. 1.9.9)?



What is the significance of RAILS_GEM_VERSION? Will changing it to other 
versions break my application?

Is there any way to automatically set RAILS_GEM_VERSION to latest 
installed Rails version (i.e. without editing environment.rb)?


Thanks

-- 
Posted via http://www.ruby-forum.com/.

I''m having a similar problem with Dreamhost

* had a simple app that was previously working on Dreamhost

* now it''s not working (hadn''t checked it for several weeks)
and I''m
getting the below
-  rails log - <Nothing>
-  fastcgi.crash.log <nothing>
-  http/error.log ==>
FastCGI: comm with (dynamic) server ".../dispatch.fcgi" aborted:
(first
read) idle timeout (120 sec)
FastCGI: incomplete headers (0 bytes) received from server 
".../dispatch.fcgi"

* fastcgi is executable & log files are writable

* have tried "killall -9 ruby"

* RAILS VERSION - Is this an issue below?
  $ gem list | grep rails
  ==> rails (1.1.6, 1.1.5)

* I did try modifying the rails version in the environment.rb file to 
the following but this didn''t help
   "RAILS_GEM_VERSION = ''1.1.6''"


Any ideas how to get the app going again???


Tks










Iseng --- wrote:
> Is there any problem with versions compatibility?
> 
> A project I started with 1.1.2 cannot run with 1.1.4.
> 
> Dreamhost recently updated their rails from 1.1.2 to 1.1.5 and 1.1.6. 
> Needless to say I got "Application Error". However when I changed
> RAILS_GEM_VERSION to either 1.1.5 or 1.1.6, it works. (Haven''t
made a
> thorough checking though.)
> 
> Here it seems there is no compatibility problem between 1.1.2 and 1.1.5 
> / 1.1.6.
> 
> So if, I started with one version (e.g. 1.1.2) will it still work after 
> rails upgrade later (e.g. 1.9.9)?
> 
> 
> 
> What is the significance of RAILS_GEM_VERSION? Will changing it to other 
> versions break my application?
> 
> Is there any way to automatically set RAILS_GEM_VERSION to latest 
> installed Rails version (i.e. without editing environment.rb)?
> 
> 
> Thanks

-- 
Posted via http://www.ruby-forum.com/.

Actually the "RAILS_GEM_VERSION = ''1.1.6''" approach
below DID work.
Just had to issue a couple more "killall -9 ruby" commands.

Can anyone explain this rails version setting in environment.rb?
- why does it need to exist?
- what''s the work around to avoid one''s application bombing
after the
host company upgrades the version of rails?

Tks



Greg Hauptmann wrote:
> I''m having a similar problem with Dreamhost
> 
> * had a simple app that was previously working on Dreamhost
> 
> * now it''s not working (hadn''t checked it for several
weeks) and I''m
> getting the below
> -  rails log - <Nothing>
> -  fastcgi.crash.log <nothing>
> -  http/error.log ==>
> FastCGI: comm with (dynamic) server ".../dispatch.fcgi" aborted:
(first
> read) idle timeout (120 sec)
> FastCGI: incomplete headers (0 bytes) received from server 
> ".../dispatch.fcgi"
> 
> * fastcgi is executable & log files are writable
> 
> * have tried "killall -9 ruby"
> 
> * RAILS VERSION - Is this an issue below?
>   $ gem list | grep rails
>   ==> rails (1.1.6, 1.1.5)
> 
> * I did try modifying the rails version in the environment.rb file to 
> the following but this didn''t help
>    "RAILS_GEM_VERSION = ''1.1.6''"
> 
> 
> Any ideas how to get the app going again???
> 
> 
> Tks
> 
> 
> 
> 
> 
> 
> 
> 
-- 
Posted via http://www.ruby-forum.com/.

On 15/08/06, Greg Hauptmann <gregsfm@tpg.com.au>
wrote:
>
> - what''s the work around to avoid one''s application
bombing after the
> host company upgrades the version of rails?
>
Embedding rails with your app -- either rake freeze_gems or rake freeze_edge
as appropriate. Then you''re not using the host company''s
version of rails.
-- 
Cheers,
Hasan Diwan <hasan.diwan@gmail.com>
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