When the Replication Agent reaches the end of the transaction log during normal processing, it must wait for Adaptive Server to extend the log (so the primary database resumes activity).
“Log Extension Wait” reports on these activities:
Count – number of times Replication Agent waited for Adaptive Server to extend the log.
Amount of time – length of time, in milliseconds, Replication Agent waited for Adaptive Server to extend the log.
Longest Wait – longest length of time, in milliseconds, Replication Agent had to wait for Adaptive Server to extend the log.
Average Time – average length of time, in milliseconds, Replication Agent waited for Adaptive Server to extend the log.