Scaling Write-Heavy Applications with MongoDB

Optimizing the database layer for most web applications tends to be mostly about fast reads. That is why the majority of benchmarks and technical blogs focus on read-intensive workloads. At Mailgun, up to 75% of queries are ordered updates and deletes. This presents a number of challenges. This talk is about lessons we learned at Mailgun while building the highly available and fast back-end for our ever-changing message queue on top of MongoDB.