On Tue, Dec 10, 2013 at 8:13 AM, Dmitry Koterov <dmitry@xxxxxxxxxx> wrote: > Hello. > > Is there a way to compress the traffic between master and slave during the > replication?.. The streaming gzip would be quite efficient for that. > > (WAL archiving is not too good for this purpose because of high lag. I just > need to minimize the cross-datacenter traffic keeping the replication lag > low.) Not directly AFAIK, but this would be a good argument for the implementation of hooks in walsender and walreceiver that could allow to use such customization of the stream sent and received. Note that there is also a patch pending for 9.4 that would make possible the compression of full page writes, reducing globally the amount of WAL produced by server in exchange of some CPU work to compress and decompress the data. -- Michael -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
