I am looking into a link https://blogs.msdn.microsoft.com/psssql/2018/04/05/troubleshooting-data-movement-latency-between-synchronous-commit-always-on-availability-groups/
about looking into AG commit wait. the following is the capture from my Primary AG .
I have few questions:
1. why there are two hadr_log_block_group_commit for the same block ID ?
2. the log_block_id are the same as LSN in DMV. sys.dm_hadr_database_replica_states ??