Active Directory Replication
Active Directory replication failed because it could not allocate memory
The replication operation failed to allocate memory. This operation will not continue.
Active Directory replication could not continue because the domain controller did not have enough available memory to complete the replication task.
Observed message
The replication operation failed to allocate memory. This operation will not continue.
Why it happens
- The domain controller is under memory pressure and cannot allocate enough memory for replication.
- Other workloads or services on the server are consuming too much RAM or virtual memory.
- The controller may be unhealthy or degraded and only temporarily recovers after restart.
How to fix it
- Check memory and virtual memory usage on the affected domain controller.
- Reduce competing workloads or move non-directory services off the controller if possible.
- Review event logs and controller health to confirm whether the memory issue is isolated or recurring.
