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

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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


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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
> 
> 
> 
> 
> 
> 
> 
> 

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