Windows error 8461 (ERROR_DS_DRA_PREEMPTED): meaning and diagnosis

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: The replication attempt was preempted by other replication work.

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ERROR_DS_DRA_MISSING_PARENT	ERROR_DS_DRA_ABANDON_SYNC

ERROR_DS_DRA_PREEMPTED

ERROR_DS_DRA_PREEMPTED (8461) is an Active Directory replication error. The replication task was displaced before completion. This often reflects backlogged or higher-priority replication work rather than a permanent directory-data failure.

What to check

Use repadmin /queue repeatedly to measure whether queued requests are shrinking or continuing to grow.
Check system load, partner count, network bandwidth, and the replication schedule for the affected site.
Investigate sustained preemption; do not assume one preempted request proves directory corruption.

Useful command

repadmin /queue <DestinationDC>

Microsoft: Troubleshoot AD replication error 8461 · Microsoft: Repadmin /queue · Microsoft: Diagnose AD replication failures

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