| From: | "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com> |
|---|---|
| To: | Simon Riggs <simon(at)2ndquadrant(dot)com> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-general(at)postgresql(dot)org |
| Subject: | Re: Slow PITR restore |
| Date: | 2007-12-12 16:29:10 |
| Message-ID: | 47600C56.4020205@commandprompt.com |
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| Thread: | |
| Lists: | pgsql-general pgsql-hackers |
Simon Riggs wrote:
> On Wed, 2007-12-12 at 07:36 -0800, Joshua D. Drake wrote:
>
>> We can't really expect people to use PITR if they new
>> it would take hours to recover even on the size of machine I was working on.
>
> That's not true statement in all cases and can often be improved with
> some monitoring and tuning. Just get your client to call me :-)
>
Uhh.. right.
> Are you doing replication, or a PITR for another reason?
Warm standby. Normally we pull every 5 minutes which is why we hadn't
noticed this before. However last night we pulled a full sync and
recover and that is when we noticed it.
8 seconds for a single archive recovery is very slow in consideration of
this machine. Even single threaded that seems slow.
Sincerely,
Joshua D. Drake
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