April 2014
Intermediate to advanced
336 pages
7h 48m
English
Content preview from Heroku Cloud Application DevelopmentBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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When does Heroku Postgres failover?
A database failure or slow response doesn't immediately trigger a database failover in the Heroku PostgreSQL database service. The Heroku PostgreSQL support ensures that the application database really needs a failover (as it involves some cost to switch to a new database instance and shut down the previous one), besides setting up new configuration and making the application live again on the new database. Heroku support runs a suite of tests to confirm that a failover is the only option. The tests are run for a given period of time, usually two minutes, across different application dynos to see a consistency in the database response behavior. Only when it is detected that the database is not responsive for ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.