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Christopher Nadeau

A blog about technology and the lessons learned while developing, shipping and scaling software.

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Nginx proxy_pass DNS Cache

We use nginx to proxy to an Amazon S3 bucket to serve static content to customers. Yesterday, I noticed a high failure rate through the proxy »

Christopher Nadeau 31 March 2017

pt-online-schema-change error "Error creating new table ... duplicate key"

pt-online-schema-change is a tool in the Percona Toolkit which allows you to make large table alters without locking the database. Newer versions of MySQL have Online »

Christopher Nadeau on MySQL, DevOps 16 June 2016

Quickie: Prevent Mac apps from quitting when last window is closed

There are a few apps on OSX that quit/terminate once their window is closed. This is typical on Windows of course, but it's a bit »

Christopher Nadeau on Quickie, Mac, Productivity 03 March 2016

Quickie: Quickly rename MySQL database

There's no way to rename a MySQL database. Typical advice is to dump/restore the database, but this is obviously very slow if you have a »

Christopher Nadeau on DevOps, Quickie, MySQL 02 March 2016

SSH with a Bastion Host

A bastion host is a server that sits on a public network whose sole purpose is to provide access to an inner private network. For example, »

Christopher Nadeau on DevOps, Security 27 February 2016
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