On 01/20/12 12:31 PM, Jerry Richards wrote:
> Is synchronous postgresql replication slower than asynchronous? If
> so, how much? I am looking into database replication for a phone
> system, so the response time is of concern.
when a client issues a COMMIT on the master, synchronous by definition
has to wait for the replication to be committed on the slave. this will
of course be slower, how much slower depends on far too many variables
to give an estimate, including things like speed of both servers disk
systems, speed of the network communications, data volume and
transaction rate.
--
john r pierce N 37, W 122
santa cruz ca mid-left coast
