When Enterprise Replication is running on an HDR pair, some operations cannot be performed until the logs are shipped to the secondary server. This delay prevents possible inconsistency within the Enterprise Replication domain during an HDR switch-over to a secondary server. Consequently, there is a slight increase in replication latency when Enterprise Replication is used with HDR. You can control this latency increase by setting the DRINTERVAL configuration parameter to a low value.
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