Confluent incident

Degraded Kafka performance affecting some Confluent Cloud clusters

Minor Resolved View vendor source →

Confluent experienced a minor incident on September 4, 2025 affecting Confluent Cloud, lasting 4d 8h. The incident has been resolved; the full update timeline is below.

Started
Sep 04, 2025, 09:42 AM UTC
Resolved
Sep 08, 2025, 05:49 PM UTC
Duration
4d 8h
Detected by Pingoru
Sep 04, 2025, 09:42 AM UTC

Affected components

Confluent Cloud

Update timeline

  1. identified Sep 04, 2025, 09:42 AM UTC

    We are experiencing issues related to internal topic compaction causing topic size to grow. This is impacting cluster performance in a limited number of clusters with extreme cases. We have identified the root cause and are actively working on a fix. Next update soon.

  2. identified Sep 04, 2025, 12:43 PM UTC

    Mitigation is still in progress. Next update in 3 hours

  3. identified Sep 04, 2025, 02:58 PM UTC

    Mitigation is in progress. Next update in 2 hours.

  4. monitoring Sep 04, 2025, 05:05 PM UTC

    We have deployed mitigation steps. We'll continue monitoring but no longer expect any customer impact.

  5. monitoring Sep 08, 2025, 05:47 PM UTC

    Issues related to internal topic compaction have been resolved.

  6. resolved Sep 08, 2025, 05:49 PM UTC

    This incident has been resolved.