We would like to provide additional detail surrounding the downtime which occurred on 3/11/2021

What happened?
At 10:19am PST, the US1 server environment experienced downtime which resulted in all QLess applications becoming temporarily inaccessible on the server.
Duration: 8 minutes.

Cause
As a result of a regular “cache clear" action, QLess service became unresponsive as routinely running threads were blocked from execution.

Remediation
Upon receiving a monitoring alert notification QLess engineers restarted the service.

Prevention
QLess has initiated a complete refactoring of the affected application. The new service application will be more fault-tolerant, available and self-healing.