On Tue, 2008-08-12 at 11:51 -0400, Bruce Momjian wrote: > I think you need to make it an enumerated type like log_min_messages; > something like: > > wal_transfer_wait
Yeh, that way sounds best and I like name. > with values of: > > nothing: have network traffic send WAL as needed > netflush: wait for flush of WAL network packets to slave > process: wait for slave to process WAL traffic and > optionally fsync Suggest async syncnet syncdisk > The 'process' option either waits for fsync on the slave or not > depending on how the slave is configured, meaning you could use > synchronous_commit off to not wait for the fsync to disk. Hmmm, not sure that flicking a switch on the standby should cause a loss of performance on the master. That will be an accident waiting to happen. Best to make all things that effect the performance/robustness of the master be configuration options on the master side. > I think we can add a table in the documention to show how to set things > up in postgresql.conf for async master and async slave, and other > combinations. -- Simon Riggs www.2ndQuadrant.com PostgreSQL Training, Services and Support -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
