On Thu, 08 Oct 2009 17:21:20 -0400 Aaron Bentley <[email protected]> wrote:
> -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Bjorn Tillenius wrote: > > My question would be, why do you need to run Jobs on demand; what's the > > end-user visible change here? > > The end-user visible change is that there is no lag between them > requesting an operation and the operation starting. Do the various polling scripts have to connect to the database? If so, and if the only message that needs to be sent is "there's something to do", then PostgreSQL's LISTEN and NOTIFY might be enough to help reduce lag without introducing new moving parts: http://www.postgresql.org/docs/8.4/interactive/sql-listen.html http://www.postgresql.org/docs/8.4/interactive/sql-notify.html Stub might have reasons not to though, and I have no idea if it works with replication.
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