PubNub outage, 2 September 2025
Presence is experiencing elevated latencies and error rates
- Started
- Resolved
- 2 Sept 2025, 18:50 UTC (after 16 min)
- Impact
- Not stated
- Affected
- North America Points of Presence, Asia Pacific Points of Presence, Presence Service
Last update from PubNub
### **Problem Description, Impact, and Resolution** At 18:09 UTC on September 2, 2025 we observed increased error rates and latency for our Presence service in our San Jose, Virginia, and Tokyo regions. We increased capacity in those regions and the issue was resolved at 18:16 UTC. This issue occurred because a bug in one of our APIs allowed a request to execute an operation that exceeded assumed limits in extreme cases. In this case, a large number of such requests were executed that resulted in out-of-memory conditions for the Presence service. ### **Mitigation Steps and Recommended Future Preventative Measures** To prevent a similar issue from occurring in the future we have enforced...
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