On Wed, Aug 27, 2008 at 10:34 PM, Bill Moran <wmoran@xxxxxxxxxxxxxxxxxxxxxxx> wrote: >> >> >> Dumb question. Will this kind of pg_dumpall lead to downtime, I mean >> is there a database lock during this time? > > No. Thanks. But there seems to be a tangible slowdown of DB operations during the time that pg_dump is running. Perhaps some of my postgresql.conf variables are not geared to this. (I vaguely recall setting it up so that the wal_buffers or checkpoint_segments needed to be set upwards for maintenance tasks). My question: is it possible to interactively set up these variables so that pg_dumpall can work very fast? And behind the scenes, without slowing stuff down? Thanks
