| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Decibel! <decibel(at)decibel(dot)org> |
| Cc: | "Jonah H(dot) Harris" <jonah(dot)harris(at)gmail(dot)com>, "Pg Hackers" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: [PATCH] Recreate Missing WAL Directories (from TODO) |
| Date: | 2008-11-09 17:44:40 |
| Message-ID: | 25133.1226252680@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Decibel! <decibel(at)decibel(dot)org> writes:
> On Nov 8, 2008, at 3:08 PM, Tom Lane wrote:
>> ... It's reasonably common for pg_xlog to be a symlink.
> ISTM it'd be better still to have an official knob that allows you to
> determine where pg_xlog lives. ISTR discussion about that, but I
> don't see anything obvious in postgresql.conf or configure.
My recollection of the discussion is that we decided it was too
dangerous to make it "configurable" --- if you crash and restart and the
restart seizes on some other WAL directory to recover from, you're up
the proverbial creek.
(Come to think of it, this is also a reasonable argument for not letting
postmaster startup auto-create pg_xlog ...)
regards, tom lane
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