| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Alexander Korotkov <aekorotkov(at)gmail(dot)com> |
| Cc: | Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: WIP: Fast GiST index build |
| Date: | 2011-08-03 12:59:47 |
| Message-ID: | CA+TgmoYNJ3bmrcJfDtAKxMRqf8cq0NcLi3DZamOWtf8-94m+gg@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Wed, Aug 3, 2011 at 4:18 AM, Alexander Korotkov <aekorotkov(at)gmail(dot)com> wrote:
> I found that in previous version of patch I missed PageSetLSN
> and PageSetTLI, but huge amount of WAL is still here. Also I found that huge
> amount of WAL appears only with -O2. With -O0 amount of WAL is ok, but
> messages "FATAL: xlog flush request BFF11148/809A600 is not satisfied ---
> flushed only to 44/9C518750" appears. Seems that there is some totally wrong
> use of WAL if even optimization level does matter...
Try setting wal_debug=true to see what records are getting emitted.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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