| From: | Jeff Trout <threshar(at)torgo(dot)978(dot)org> |
|---|---|
| To: | "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com> |
| Cc: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: Slow PITR restore |
| Date: | 2007-12-12 17:37:54 |
| Message-ID: | FD86DD7A-1A6C-4BF9-A509-E72307718B14@torgo.978.org |
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| Lists: | pgsql-general pgsql-hackers |
On Dec 12, 2007, at 11:29 AM, Joshua D. Drake wrote:
> 8 seconds for a single archive recovery is very slow in
> consideration of this machine. Even single threaded that seems slow.
>
I've seen this on my PITR restores (thankfully, they were for
fetching some old data, not because we expoded). On a 2.4ghz opteron
it took 5-50 seconds per wal segment, and there were a LOT of
segments (replay took hours and hours). I asked a few folks and was
told it is the nature of the beast. Hopefully something in 8.4 can
be done.
--
Jeff Trout <jeff(at)jefftrout(dot)com>
http://www.dellsmartexitin.com/
http://www.stuarthamm.net/
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