| From: | Greg Smith <greg(at)2ndQuadrant(dot)com> |
|---|---|
| To: | Andres Freund <andres(at)2ndquadrant(dot)com> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Stephen Frost <sfrost(at)snowman(dot)net>, Peter Eisentraut <peter_e(at)gmx(dot)net>, Jon Nelson <jnelson+pgsql(at)jamponi(dot)net>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: fallocate / posix_fallocate for new WAL file creation (etc...) |
| Date: | 2013-05-30 11:57:48 |
| Message-ID: | 51A73EBC.5090809@2ndQuadrant.com |
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| Thread: | |
| Lists: | pgsql-hackers |
On 5/30/13 7:52 AM, Andres Freund wrote:
> fadvise is a hint which is pretty
> different from a fallocate where ignoring would have way much more
> severe consequences.
Yes, it will. That's why I want to see it tested. There is more than
enough past examples of bad behavior here to be skeptical that this sort
of API may not work exactly as specified. If you're willing to believe
the spec, that's fine, but I think that's dangerously optimistic.
--
Greg Smith 2ndQuadrant US greg(at)2ndQuadrant(dot)com Baltimore, MD
PostgreSQL Training, Services, and 24x7 Support www.2ndQuadrant.com
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