Mar 27, 2024 REST API service issues

1. Impact and timelines

Between 11:39 AM and 2:09 PM UTC on 27 March, 2024, some REST API GET queries were returning incorrect data to clients.

The timeline for this incident is detailed below:
11:39 AM UTC: As part of our constant system upgrades, changes were made to some of our content delivery networks (CDN).
11:50 AM UTC: Our engineering team was made aware that some REST API GET queries were returning erroneous data as a result of the above configuration changes and started troubleshooting.
2:09 PM UTC: The issue was resolved.

2. What caused this disruption?

The configuration changes made in one of the CDNs led to unexpected caching issues in the CDN service. This led to the CDN service returning incorrect data to users instead of current data.

3. Our commitment to you

OKX is dedicated to providing an ultra-reliable, high-performance, and feature-rich platform to our valued customers. To this end, we make continual improvements to system performance, stability, and features. Given the complexity and challenges of operating high-performance systems 24/7, unexpected issues may occasionally arise.
We understand that timely communications are critically important to our users, and believe that transparency is integral to building trust. In the event of any issue, we will notify clients as quickly as possible through our Announcement page, Telegram community channels, the Status API, and the Status page.

Regards,
OKX team