37signals

Cases

1. IL-0301 Basecamp 3's primary database went into total gridlock at the top of the hour and Basecamp 3 went down twice37signals · 2022

   Root cause Capacity exhaustion

2. IL-0256 Basecamp was fully down twice in two days as hardware load balancers crashed and routers lost sync after failover37signals · 2020

   Root cause Software defect

3. IL-0255 Basecamp's two redundant links between data centers dropped together and a Redis replica resync loop stalled chat37signals · 2020

   Root cause Dependency failure

4. IL-0300 Basecamp 3 went read-only for almost five hours when its events table reached the ceiling of 2,147,483,64737signals · 2018

   Root cause Capacity exhaustion