HADR_DB_OP_COMPLETION_SYNC

Description

For databases utilizing Availability Groups. Used internally while replicas are waiting for message responses regarding Availability Group operations. This wait type is uncommon and should not be high

Resolved by

DBAs

Suggested solutions

  1. Check the SQL Server error log for more information
  2. Examine wait statistics on the instance for other Availability Group. Investigate accordingly

Additional research

AlwaysOn Availability Groups Troubleshooting and Monitoring Guide

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