On Mon, Sep 27, 2010 at 9:09 AM, Gurjeet Singh <singh.gurjeet@xxxxxxxxx> wrote: > See the nuggets hidden in section 25.2.5.2. "Monitoring" at > http://www.postgresql.org/docs/9.0/static/warm-standby.html#STREAMING-REPLICATION > > After an UPDATE, your application can cache the info from > 'pg_current_xlog_location()' result on the primary and then compare that > with the result of 'pg_last_xlog_receive_location()' on the standby to see > if it is seeing fresh enough data. Yep, but since recovery might fall behind WAL receiving, pg_last_xlog_replay_location should be called instead of pg_last_xlog_receive_location. Regards, -- Fujii Masao NIPPON TELEGRAPH AND TELEPHONE CORPORATION NTT Open Source Software Center -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
