| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
| Cc: | Greg Stark <gsstark(at)mit(dot)edu>, ITAGAKI Takahiro <itagaki(dot)takahiro(at)lab(dot)ntt(dot)co(dot)jp>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: [PATCHES] O_DIRECT for WAL writes |
| Date: | 2005-06-24 01:28:09 |
| Message-ID: | 21035.1119576489@sss.pgh.pa.us |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers pgsql-patches |
Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> Tom Lane wrote:
>> The reason I question "automatic" is that you really want to test each
>> drive being used, if the system has more than one; but Postgres has no
>> idea what the actual hardware layout is, and so no good way to know what
>> needs to be tested.
> Some folks have battery-backed cached controllers so they would appear
> as not handling fsync when in fact they do.
Right, so something like refusing to start if we think fsync doesn't
work is probably not a hot idea. (Unless you want to provide a GUC
variable to override it...)
regards, tom lane
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Tom Lane | 2005-06-24 01:29:00 | Re: language handlers in public schema? |
| Previous Message | Andrew Dunstan | 2005-06-24 01:24:23 | Re: language handlers in public schema? |
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Tom Lane | 2005-06-24 01:29:00 | Re: language handlers in public schema? |
| Previous Message | Andrew Dunstan | 2005-06-24 01:24:23 | Re: language handlers in public schema? |