NA1 Outage
Incident Report for QLess
Postmortem

We would like to provide additional detail surrounding the downtime which occurred on 7/19/2021

What happened?
At 7:02am PST, the NA1 server environment experienced downtime which resulted in all QLess applications becoming temporarily inaccessible on the server.
Duration: 5 minutes.

Cause
The root cause of the outage was due to a race condition that was triggered on one of our backend servers.
This race condition is a known issue, and can be triggered by heavy transactional load or other rare circumstances.

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.

Posted Jul 19, 2021 - 14:36 PDT

Resolved
QLess services are now operational
Posted Jul 19, 2021 - 07:11 PDT
Investigating
We are currently investigating this issue.
Posted Jul 19, 2021 - 07:04 PDT
This incident affected: NA1.