Changes / Pusher / MT1 cluster - increased latency

Pusher: Major incident: MT1 cluster - increased latency

Summary

Pusher reported major increased latency on Channels cluster `mt1`, affecting Channels Dashboard, Channels presence channels, Channels REST API and Channels WebSocket client API. It started at 2025-10-20 17:26 UTC and was resolved at 2025-10-21 07:14 UTC, lasting 13 h 48 min. Pusher attributed the latency to an external cloud-provider incident.

Machine-written from the diff below (Sol; type: incident degradation). Check the diff before relying on it.

Major incidentLabel: degradation (model (Jev), 100%)Changed Detected Source: stspg.io

What changed

AddedTitle#1
Before: not present
After: MT1 cluster - increased latency
AddedImpact#2
Before: not present
After: major
AddedStatus#3
Before: not present
After: resolved
AddedStart time#4
Before: not present
After: 2025-10-20 17:26 UTC
AddedResolved time#5
Before: not present
After: 2025-10-21 07:14 UTC
AddedAffected components#6
Before: not present
After: Channels Dashboard, Channels presence channels, Channels REST API, Channels WebSocket client API
AddedUpdateinvestigating#7
Before: not present
After: Our cloud provider is currently experiencing an incident that's causing increased latency on Pusher Channels main cluster `mt1` . This issue is external to our systems and is not related to our infrastructure. Our team is actively investigating to determine if there are any additional impacts and working to minimize downstream effects while our provider implements a fix.
AddedUpdateresolved#8
Before: not present
After: This incident has been resolved.

First version of this incident archived by Rewindex. View the live incident.

History of this incident

When (UTC)ChangeKind
Major incident: MT1 cluster - increased latency (this change)
Pusher reported major increased latency on Channels cluster `mt1`, affecting Channels Dashboard, Channels presence channels, Channels REST API and Channels WebSocket client API. It started at 2025-10-20 17:26 UTC and was resolved at 2025-10-21 07:14 UTC, lasting 13 h 48 min. Pusher attributed the latency to an external cloud-provider incident.
Major incident

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