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Coffee Meets Bagel Engineering

The tech blog for the fantastic CMB engineering team

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Shannon Tully in Coffee Meets Bagel Engineering

Jun 9, 2020

Debugging Issues At Their Root

The heart of Coffee Meets Bagel is the data we collect and analyze. We use the data you provide in your…

Cris Ewing in Coffee Meets Bagel Engineering

Apr 19, 2018

Testing Django with pytest: debugging a teardown failure

1 response

Ann Molly Paul in Coffee Meets Bagel Engineering

Jan 23, 2018

Schema Migration from Int to Bigint on a Massive Table in Postgres

In my previous post, I discussed the importance of monitoring tables to ensure we don’t unknowingly hit database limits and different approaches for performing a Primary Key migration, including time estimates based…

2 responses

Ann Molly Paul in Coffee Meets Bagel Engineering

Jan 23, 2018

Reaching the Max Limit for Ids in Postgres

Databases and their limitations can be the source of interesting engineering challenges. One such challenge we recently faced as a team was dealing with the limitation of the int datatype on an auto incrementing primary key for a fast growing table in…

6 responses

John DeRosa in Coffee Meets Bagel Engineering

Jun 15, 2017

Sometimes underscore isn’t so simple

Technical blog posts are often about issues or problems that are intricate, challenging, and/or visionary.

This post is about a problem that’s simple, easy to fix, and worthy of slapping your forehead. It’s a story about a bug happening at…

2 responses

David O'Steen in Coffee Meets Bagel Engineering

May 18, 2017

A Brief History of Priority Queues at CMB

We run a lot of asynchronous tasks at Coffee Meets Bagel, and as such, we need some sort of queuing system(s) to manage them. Two years ago, when I started working for the company, our primary task management system was Celery. Present day, we have largely…