On May 27, 2026, at 23:24 UTC, customers in our us1: Data Center - US East region may have experienced degraded platform performance and delays in model loading. During the incident, approximately 49 customer workspaces were temporarily unable to load models.
Root cause
This issue was initiated by an incorrect configuration setting applied during a standard infrastructure deployment. While configuring newly added hardware, a maintenance command was prematurely executed against an incorrect range of servers. This caused an unexpected restart of several hosting servers within the cluster. As a result, the available system capacity was reduced and caused workspaces running on the impacted infrastructure to stop responding.
Recovery
We identified the issue and took immediate action to restore platform functionality. We brought the restarted servers back online and re-enabled the affected infrastructure resources to restore system capacity. We then cleared the unresponsive processes and stabilized the system by restarting the workspace allocation components. By 02:37 UTC, all active workspaces were confirmed healthy and stable.
Corrective and preventative actions
We are implementing the following actions to prevent recurrence and strengthen our platform:
We apologize for any impact this issue may have had on your business operations. We are continuously strengthening our systems and procedures to ensure we avoid future disruptions to your business and users.
If you have further questions or concerns, please visit our Support website. We appreciate your patience during this incident and value the trust you place in Anaplan.