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Questions tagged [cedar]

**'Celadon Cedar'** is the newest runtime stack for apps hosted on heroku.com. It is a polyglot platform, supporting multiple languages including Ruby, Python, Java, and Clojure.

'Celadon Cedar' is the newest runtime stack for apps hosted on heroku.com. It is a polyglot platform, supporting multiple languages including Ruby, Python, Java, and Clojure.

Cedar has several improvements over Heroku's earlier stacks:

  • It uses the process model to declare, manage, and run processes across a distributed environment
  • Different types of processes can to scale at different rates to meet demand
  • Aggregate logs and process transparency give users improved process visibility into app behaviour
  • Increased user control over app releases
  • Language support is implemented through modular, customizable buildpacks, allowing developers to add support for any language or framework they need

More information:

For general questions about heroku itself, see the tag.

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HireFire on Heroku Cedar no getting triggered?

I've upgraded an app from 3.2/1.8.7/Bamboo to 3.2/1.9.2/Cedar. Everything seems to be working except HireFire is not getting triggered properly. Things seem to go smoothly when I run bundle exec rake jobs:work manually, but I can't for the life of…
pixelearth
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Rails 3.2.11 deploy Heroku error

I got the application uploaded to heroku, during the uploading process, it did not show any sign of errors. Yet, when I "heroku open" it, the only thing that rendered on the page is "We're sorry, but something went wrong." So I just post the heroku…
The questioner
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How to download an ephemeral file from Heroku Cedar

I have a rails project hosted on Heroku Cedar that does the following: crawls daily newsfeed and store them into the database manually judge the feeds and classify them into categories use the judgments to build a classifier that automatically…
Ian Lin
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Heroku Error: No such file or directory after Bamboo - Cedar upgrade

I've upgraded my app from Bamboo to Cedar following the instructions here. My problem now is whenever I run any heroku command on the new heroku app I receive the following error $ heroku run rake db:migrate --app my-app Running `rake db:migrate`…
efatsi
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why do i get a "Procfile declares types -> (none)" even when i have the correct Procfile?

i am trying to run the bundled solr that comes with sunspot_solr gem by adding this one line to Procfile: solr: bundle exec rake sunspot:solr:start Procfile is spelled with a small 'f' and exists at my Rails root. i have not yet been able to get…
vinayvinay
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Migrating to Cedar on Heroku and losing URL from heroku.com to herokuapp.com

I'm in the process of doing several major improvements to my main production app on Heroku This includes : using PostgreSQL in development, upgrading to the latest Rails, move to a dedicated database with Crane, and using thin as a webserver. The…
Emmanuel
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Migrating app from Bamboo to Cedar: can I just change DATABASE_URL in the new instance?

In the migration Guide the recommended approaches for migrating databases don't include just changing the DATABASE_URL in the new instance. If you have a dedicated database in Bamboo, and want to use the same in Cedar, is there a problem in just…
jmanrubia
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heroku pg password authentication failed error

I'm a total heroku noob so please bear with me on this one. Last night I deployed an application to heroku cedar, putting 'gem 'pg'' into the production group on my gemfile and leaving sqlite3 in my development and test groups. Everything was…
bejar37
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Play 2.0 Scala Heroku instance isn't seeing every variable in the Procfile

I'm using Play! 2.0 Scala edition on Heroku. Heroku does not seem to see/use all my configuration variables in the Procfile. For instance, in my application.conf I have the following variables (amongst others): mongodb.default.db =…
opyate
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Is there a simple way of knowing running Heroku processes from within a process?

I'd quite like to know whether there's a simple way of knowing the list of running processes in your app, from inside a running process. For instance, let's say I have a web process and a worker process. From within the web process, can I know that…
Aupajo
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Heroku Cedar Stack and command heroku run console

In my old Ruby 1.9.2 Sinatra apps running on Bamboo stack, heroku console provided a shell that not only initialized Active Record but also logged to a history file in my .heroku directory. After moving to Heroku Cedar stack and using Ruby 1.9.3, I…
David Lazar
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sending a command to heroku console

What's the correct way of sending a command to heroku console on Cedar? heroku console 2+2 works on older stacks - it warns me to use heroku run console on cedar. When I run heroku run console 2+2 it loads the unwanted "2+2" environment and opens…
shime
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