Outage report · Major outage

Front outage on Apr 29, 2025

2025-04-29 Application unavailable for some customers

SeverityMajor outage

StartedApr 29, 2025, 23:54UTC

ResolvedApr 30, 2025, 05:43UTC

Duration5h 50m

What happened

Front reported a major outage starting Apr 29, 2025, 23:54 UTC, affecting App. It was marked resolved at Apr 30, 2025, 05:43 UTC.

The incident lasted 5h 50m from first report to resolution.
Front had reported 3 other partial or major outages in the 90 days before it.
3 other vendors we track reported a significant incident within 12 hours of it.

Latest update from Front

On Tuesday, April 29, Front experienced an application outage lasting roughly 4 hours for a subset of US-based customers—roughly 3% of users. This was the result of a human error during a planned database maintenance operation that resulted in one database shard becoming unrecoverable. Front was able to restore this database shard from an up-to-date backup and then catch up any missed messages during that period, which resulted in no data lost as a result of this issue. Front customers are divided into database shards so that an issue with one shard does not affect all others. Earlier this week Front performed an upgrade of all database shards as a routine procedure, and while the upgrade was successful with no customer impact, there was an error in the cleanup step that caused one shard to be irrevocably invalidated. This occurred at 4:16 pm PDT \(23:16 UTC\). Front maintains up-to-date database replicas for this purpose, from which we were able to initiate a restoration. This invol

Read Front's official incident report ↗