On Wed, Aug 27, 2008 at 8:40 AM, Phoenix Kiula <phoenix.kiula@xxxxxxxxx> wrote: > 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? Nope, it's not a software problem, it's a hardware problem. You're drive subsystem can only deliver data so fast. The fix is usually better hardware. Big RAID controller and lots of drives.
