I need a very fast queue of data to be shared between a single writer and multiple readers. Is BDB going to be as fast as 2 processes (1 writer, 1 reader) sharing a single file on the same physical hardware? If the reader is on another server and I use the HA solution, what lattency can I expect before the records become available? Is every database (file.db) replicated seperately between servers in the HA solution? If I can stay with fixed length records, is the QUEUE access method the best choice because of record locking, or can I go with RECNO and have variable length records without locking concerns becasue I always have a single writer?

Thank you in advance.

-Ryan