From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
---|---|
To: | Andy Colson <andy(at)squeakycode(dot)net> |
Cc: | pgsql-performance(at)postgresql(dot)org |
Subject: | Re: Running PostgreSQL as fast as possible no matter the consequences |
Date: | 2010-11-15 19:36:38 |
Message-ID: | AANLkTinnB7_rS6mMLMqyG=FwSscb-rkNUy_JTAF0b9-X@mail.gmail.com |
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Lists: | pgsql-performance |
On Mon, Nov 15, 2010 at 2:27 PM, Andy Colson <andy(at)squeakycode(dot)net> wrote:
> On 11/15/2010 9:06 AM, Robert Haas wrote:
>>
>> In 9.1, I'm hopeful that we'll have unlogged tables, which will even
>> better than turning these parameters off, and for which I just posted
>> a patch to -hackers. Instead of generating WAL and writing WAL to the
>> OS and then NOT trying to make sure it hits the disk, we just won't
>> generate it in the first place. But if PostgreSQL or the machine it's
>> running on crashes, you won't need to completely blow away the cluster
>> and start over; instead, the particular tables that you chose to
>> create as unlogged will be truncated, and the rest of your data,
>> including the system catalogs, will still be intact.
>>
>
> if I am reading this right means: we can run our db safely (with fsync and
> full_page_writes enabled) except for tables of our choosing?
>
> If so, I am very +1 for this!
Yep. But we need some vic^H^Holunteers to reviews and test the patches.
https://commitfest.postgresql.org/action/patch_view?id=424
Code review, benchmarking, or just general tinkering and reporting
what you find out on the -hackers thread would be appreciated.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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