How Travis CI Uses Heroku to Scale Their Platform

Editor's note: This is a guest post from Mathias Meyer of Travis CI.

Travis CI is a continuous integration and deployment platform. It started out as a project to offer a free platform for the open source community to run their tests and builds on.

Over the past two years, Travis CI has grown, a lot. What started out with a single server running just a few hundred tests a day turned into a platform used by thousands of open source projects and hundreds of companies for their public and private projects. Travis CI is currently serving more than 62,000 active open source projects, with 32,000 daily builds, and 3,000 private projects with 11,000 daily builds.

Heroku is an important part of how we’ve scaled our platform, and this is the story of how we did it.

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Heroku Postgres at Postgres Open and PostgreSQL Conf EU

The Heroku Postgres team is hitting the road in coming months and we’d love to connect with you. If you’d like to meet up with us at any of the events below, drop us a line or Tweet us @HerokuPostgres.

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Win a ticket to Postgres Open and visit us there

The Heroku Postgres team is hitting the road in coming months and we'd love to connect with you. If you'd like to connnect with us at any of the events below drop us a line or @HerokuPostgres

Postgres Open

The first opportunity to connect with us is in September at Postgres Open. If you've already got your tickets for Postgres Open join us for drinks and/or pizza at Clark Ale House on Tuesday September 17, and make sure to check out talks by me and Peter Geoghegan at the conference.

If you don't already have your ticket for Postgres Open but are interested in going, we've got a chance for you to win a ticket from us for free.

Win a ticket to Postgres Open

We're giving away 3 tickets to PG Open. For your chance to win a ticket we want to see the creative ways you're using dataclips with your Heroku Postgres database. Submissions can be a really impressive query or a great integration, the key to either is that it should be empowering you to better run your business with this data.

To enter 1. create your dataclip or integration then 2. submit the following to

  1. Your name
  2. Your role
  3. Your organization and what the company does
  4. A link to the dataclip or to the integration that you've built.

We will be announcing winners on August 29, 2013. The winners will be chosen at the sole discretion of the Heroku Postgres team.

PostgreSQL Conf EU

Those of you in Europe will have an opportunity to connect with the team as well. A large part of the team will be at PG Conf EU, including talks by 4 of our team members:


If you're going to be at either of the above conferences we'd love to talk to you. However, you don't have to wait until these conferences, if you ever have operational issues with you database you can find help at or for product related questions and feedback you can contact us at

The Heroku Security Researcher Hall of Fame

Starting today, Heroku would like to publicly thank all the independent security researchers who have practiced responsible disclosure and helped us remediate issues.

The Heroku Security Researcher Hall of Fame lists these researchers, along with the date of their initial report. If you've found a new security issue on our platform, we'd love to hear from you.

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Building Twelve Factor Apps on Heroku

At Heroku, we’ve had the privilege of running and managing millions of amazing apps built by our users. Over a year ago, Heroku co-founder Adam Wiggins published the Twelve Factor App, based directly on these experiences. It distills best practices for building modern cloud applications into a 12-factor methodology specifically designed to maximize developer productivity and application maintainability.

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