Changes Dagster Cloud application cluster outage

Dagster: Critical incident: Cloud application cluster outage

Major incidentoutage (model (Jev), 100%)Changed 2026-10-22 17:14 UTCDetected 2026-10-22 17:23 UTCdagstercloud.statuspage.io

Summary

Dagster reported a critical production application cluster outage affecting API and Dagster Cloud UI for all Dagster+ cloud customers, starting 2026-10-22 17:14 UTC. It was still open when archived, open for 0 min at the last update; Dagster was investigating and working on a resolution.

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

Incident page: the full timeline of updates

What changed

~~Struck in red~~ is what Dagster removed; blue is what they added. Muted text is unchanged context.

AddedTitle#1

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Cloud application cluster outage

AddedImpact#2

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critical

AddedStatus#3

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investigating

AddedStart time#4

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2026-10-22 17:14 UTC

AddedAffected components#5

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API, Dagster Cloud UI

AddedUpdateinvestigating2026-10-22 17:14 UTC#6

not present

We are experiencing an issue with our production application cluster, impacting all Dagster+ cloud customers. We are currently investigating and working on a resolution.

First version of this incident archived by Rewindex. View the live incident (opens in new tab).

Archive proof

Rewindex commits each version of an incident it captures to a daily checkpoint, chains it to the day before, and has the checkpoint timestamped by FreeTSA and DigiCert. That proves this record existed by then and has not been changed since, by anyone, Rewindex included.

How the archive is checked, and what it cannot prove.

Oct 22
After captured 17:23 UTC
In the 2026-10-22 checkpoint, timestamped by FreeTSA and DigiCert on Oct 23, 11:49 UTC. Record hash a75132d22a69c100…
Download proof

History of this incident

Friday, October 30

1 incident change

Normal progress
13:53Incident
Incident updateCloud application cluster outage

Thursday, October 22

3 incident changes

Normal progress
17:53Incident
Incident updateCloud application cluster outage
Normal progress
17:44Incident
Incident updateCloud application cluster outage
Outage
17:14Critical incident
Cloud application cluster outagethis change
Dagster reported a critical production application cluster outage affecting API and Dagster Cloud UI for all Dagster+ cloud customers, starting 2026-10-22 17:14 UTC. It was still open when archived, open for 0 min at the last update; Dagster was investigating and working on a resolution.

Cite this

Critical incident: Cloud application cluster outage on Dagster’s status page, changed 2026-10-22 17:14 UTC (change 1 of 4).

Title: Critical incident: Cloud application cluster outage
Vendor: Dagster
Date: 2026-10-22 17:14 UTC
URL: https://rewindex.com/change/i695b6e76d64d94

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