Replication latency

Replication latency is the time it takes for the system to make a value available for retrieval on the next-tier Historian from the moment it was stored or calculated on the previous tier.

Replication latency depends primarily on whether the streaming or queued replication method is being applied in each particular case and the available system resources to execute that method in each particular case.

Streaming replication tends to have a shorter latency period than queued replication as it deals with smaller amounts of data and is processed at a higher priority.