Howdy, When calculating Replication lag, I know that we have to compare the pg_current_xlog_location to pg_last_xlog_receive_location, etc. but what I'm trying to figure out is what are the units that I'm left with after the calculation. (i.e., does the xlog_location imply some time value?) Here's the output of the (slightly modified script) Master: 5003964876715 Receive: 5003964876715 Replay: 5003964765203 receive.value 0 apply.value 111512 111512 isn't inherently useful to me on its own. Any tips? Thanks Dave -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general