Incident Library

Organisation

Ably

Ably · ably

1 case · 2020

Root cause Capacity exhaustion
Component Database
Contributing factor Unverified assumptionRetry storm
Symptom Database overloadIntermittent timeouts

Cases

  1. IL-0496 Ably's Cassandra hit 100% CPU in every region and queries timed out globally, and the load returned on two more eveningsAbly · 2020

    Root cause Capacity exhaustion