Here is what I was able to pull from the logs immediately following a
500 error:

==> dyno-878231.log <==
config.gem: Unpacked gem environment.rb in vendor/gems has no
specification file. Run 'rake gems:refresh_specs' to fix this.
config.gem: Unpacked gem environment.rb in vendor/gems not in a
versioned directory. Giving up.
config.gem: Unpacked gem ruby in vendor/gems has no specification
file. Run 'rake gems:refresh_specs' to fix this.
config.gem: Unpacked gem ruby in vendor/gems not in a versioned
directory. Giving up.

==> production.log <==
# Logfile created on Tue Feb 16 17:50:59 -0800 2010

Processing ApplicationController#new (for 98.201.58.81 at 2010-02-16
17:51:00) [GET]

Errno::EROFS (Read-only file system - /disk1/home/slugs/
129005_3d87b71_003c/mnt/public/stylesheets/compiled/ie.css - Heroku
has a read-only filesystem.  See 
http://docs.heroku.com/constraints#read-only-filesystem):
  haml (2.2.3) rails/./lib/sass/plugin.rb:79:in `delete'
  haml (2.2.3) rails/./lib/sass/plugin.rb:79:in `update_stylesheet'
  haml (2.2.3) rails/./lib/sass/plugin.rb:69:in `update_stylesheets'
  haml (2.2.3) rails/./lib/sass/plugin.rb:64:in `each'
  haml (2.2.3) rails/./lib/sass/plugin.rb:64:in `update_stylesheets'
  haml (2.2.3) rails/./lib/sass/plugin.rb:62:in `each'
  haml (2.2.3) rails/./lib/sass/plugin.rb:62:in `update_stylesheets'
  haml (2.2.3) rails/./lib/sass/plugin/rails.rb:16:in
`process_without_compass'
  /home/slugs/129005_3d87b71_003c/mnt/.gems/gems/chriseppstein-
compass-0.8.17/lib/compass/app_integration/rails/action_controller.rb:
7:in `process'
  /home/heroku_rack/lib/static_assets.rb:9:in `call'
  /home/heroku_rack/lib/last_access.rb:25:in `call'
  /home/heroku_rack/lib/date_header.rb:14:in `call'
  thin (1.0.1) lib/thin/connection.rb:80:in `pre_process'
  thin (1.0.1) lib/thin/connection.rb:78:in `catch'
  thin (1.0.1) lib/thin/connection.rb:78:in `pre_process'
  thin (1.0.1) lib/thin/connection.rb:57:in `process'
  thin (1.0.1) lib/thin/connection.rb:42:in `receive_data'
  eventmachine (0.12.6) lib/eventmachine.rb:240:in `run_machine'
  eventmachine (0.12.6) lib/eventmachine.rb:240:in `run'
  thin (1.0.1) lib/thin/backends/base.rb:57:in `start'
  thin (1.0.1) lib/thin/server.rb:150:in `start'
  thin (1.0.1) lib/thin/controllers/controller.rb:80:in `start'
  thin (1.0.1) lib/thin/runner.rb:173:in `send'
  thin (1.0.1) lib/thin/runner.rb:173:in `run_command'
  thin (1.0.1) lib/thin/runner.rb:139:in `run!'
  thin (1.0.1) bin/thin:6
  /usr/local/bin/thin:20:in `load'
  /usr/local/bin/thin:20

Rendering /disk1/home/slugs/129005_3d87b71_003c/mnt/public/500.html
(500 Internal Server Error)


Any ideas?

On Feb 16, 12:42 am, Pedro Belo <[email protected]> wrote:
> Do you see anything by running heroku logs?
> 500s are caused by the application, so you should find the source of
> it in the logs.
>
> On Mon, Feb 15, 2010 at 9:32 PM, sslguy <[email protected]> wrote:
> > Looks like the problem still exists :(
>
> > On Feb 15, 4:42 pm, sslguy <[email protected]> wrote:
> >> Thanks for your prompt response. I'll check back in a while to see if
> >> the 500 error resurfaces.
>
> >> On Feb 15, 11:14 am, Oren Teich <[email protected]> wrote:
>
> >> > While free apps do cycle down after a few hours of inactivity, you should
> >> > never get a 500 error.  That's something we'll have to look into.
>
> >> > Oren
>
> >> > 2010/2/15 Nicolás Sanguinetti <[email protected]>
>
> >> > > On Mon, Feb 15, 2010 at 2:15 PM, sslguy <[email protected]> 
> >> > > wrote:
> >> > > > Any idea why my app ssltools.com keeps winding down. When I visit the
> >> > > > site, I at first get an error code 500. Upon immediate refresh, the
> >> > > > app comes up. However, wait a period of time, and Heroku shuts the 
> >> > > > app
> >> > > > down. Then the cycle repeats itself.
>
> >> > > > Any idea would be appreciated.
>
> >> > > Free app? Free apps act like that, if you pay for it then it shouldn't
> >> > > do that, AFAIK.
>
> >> > > Cheers
>
> >> > > > --
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