Re: scheduler in core
От | Simon Riggs |
---|---|
Тема | Re: scheduler in core |
Дата | |
Msg-id | 1266775881.7341.29972.camel@ebony обсуждение исходный текст |
Ответ на | Re: scheduler in core (Tom Lane <tgl@sss.pgh.pa.us>) |
Ответы |
Re: scheduler in core
Re: scheduler in core Re: scheduler in core |
Список | pgsql-hackers |
On Sat, 2010-02-20 at 18:19 -0500, Tom Lane wrote: > Dimitri Fontaine <dfontaine@hi-media.com> writes: > > Dave Page <dpage@pgadmin.org> writes: > >> Why not just use pgAgent? It's far more flexible than the design > >> you've suggested, and already exists. > > > What would it take to have it included in core, > > I don't think this really makes sense. There's basically no argument > for having it in core other than "I'm too lazy to install a separate > package". Unlike the case for autovacuum, there isn't anything an > in-core implementation could do that an external one doesn't do as well > or better. So I'm not eager to take on additional maintenance burden > for such a thing. There is currently no way to run a separate daemon process that runs user code as part of Postgres, so that the startup code gets run immediately we startup, re-run if we crash and shut down cleanly when the server does. If there were some way to run arbitrary code in a daemon using an extensibility API then we wouldn't ever get any requests for the scheduler, cos you could write it yourself without troubling anybody here. -- Simon Riggs www.2ndQuadrant.com
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