KB-1886 "The Memory Circuit Breaker prevented this evaluation from completing due to insufficient resources" error thrown when evaluating expression

Symptoms

When evaluating an expression, the following error occurs:

The Memory Circuit Breaker prevented this evaluation from completing due to insufficient resources. Please contact your system administrator. (APNX-1-4510-000)

Cause

The expression used too much memory and was aborted to prevent system-wide performance issues.

Action

See the Memory Circuit Breaker documentation page for guidance on designing memory-efficient expressions and diagnosing memory issues.

Affected Versions

This article applies to Appian 18.1 and later.

Last Reviewed: March 2019