# Asana outage on Tuesday, May 16

> Asana was down on May 16 for approximately 30 minutes. We want to let our customers know what caused this outage and how we resolved it.

Source: https://asana.com/inside-asana/asana-outage-tuesday-may-16

## Asana outage on Tuesday, May 16

On Tuesday, May 16, Asana was down for approximately 30 minutes and partially available for another hour. In the spirit of transparency, we want to let our customers know what caused this outage and how we resolved it.

On Tuesday morning at approximately 8:40AM PDT, one of our databases became unreachable. The database’s automatic failover did not kick in, so the database stayed unreachable until an on-call engineer triggered a failover manually. After the database was failed over, many of Asana’s API servers did not correctly recover, so they also needed to be manually restarted.

We’ve since discovered a regression that stopped the API from recovering gracefully. That bug has been fixed and is making its way through our Continuous Integration pipeline. We’re also working with AWS to understand why the database failed and why it didn’t automatically recover. Finally, we’re working to understand any other reasons why our API servers did not correctly recover once the database was back up.

- [Improving Asana’s Pageload Performance](/inside-asana/improving-asanas-pageload-performance)

Engineering

#### Senior Engineering Manager

Asana serves 2.5 million pageloads a day, peaking at 3.5 million. Each one is a user's first impression of the product — the moment between intent and action — and for a tool team ...

- [How Asana Built A Resilient ID Allocation System](/inside-asana/how-asana-built-resilient-id-allocation)

Engineering

Every object in Asana—every task, project, comment, and attachment—needs a unique identifier. At Asana, these IDs are sequentially incrementing integers, allocated in blocks from ...

- [The Athletic Position](/inside-asana/the-athletic-position)

Engineering

I. Before the Ball Leaves their StringsThere is a moment from the 1988 French Open final that most people who talk about tennis haven’t had to think about carefully.Steffi Graf pl ...

- [How Asana leverages AWS Inspector for total visibility over infrastructure vulnerabilities](/inside-asana/asana-leverages-aws-inspector-visibility-infrastructure-vulnerabilities)

Engineering

#### Software Engineer

Scanning for vulnerabilities across multiple AWS accounts, eliminating noise, and turning vulnerability findings into actionable work is a challenging but important undertaking. A ...

- [Asana outage on Tuesday, May 16](/inside-asana/asana-outage-tuesday-may-16)

Engineering

On Tuesday, May 16, Asana was down for approximately 30 minutes and partially available for another hour. In the spirit of transparency, we want to let our customers know what cau ...

- [Engineering](/inside-asana/engineering-spotlight)