Re: Recovery will take 10 hours - Mailing list pgsql-performance

Hi Jeff,

The WAL files are stored on a separate server and accessed through an
NFS mount located at /wal_archive.

However, the restore failed about 5 hours in after we got this error:

[2006-04-20 16:41:28 MDT] LOG: restored log file
"000000010000018F00000034" from archive
[2006-04-20 16:41:35 MDT] LOG: restored log file
"000000010000018F00000035" from archive
[2006-04-20 16:41:38 MDT] LOG: restored log file
"000000010000018F00000036" from archive
sh: line 1: /wal_archive/000000010000018F00000037.gz: No such file or
directory
[2006-04-20 16:41:46 MDT] LOG: could not open file "pg_xlog/
000000010000018F00000037" (log file 399, segment 55): No such file or
directory
[2006-04-20 16:41:46 MDT] LOG: redo done at 18F/36FFF254
sh: line 1: /wal_archive/000000010000018F00000036.gz: No such file or
directory
[2006-04-20 16:41:46 MDT] PANIC: could not open file "pg_xlog/
000000010000018F00000036" (log file 399, segment 54): No such file or
directory
[2006-04-20 16:41:46 MDT] LOG: startup process (PID 9190) was
terminated by signal 6
[2006-04-20 16:41:46 MDT] LOG: aborting startup due to startup
process failure
[2006-04-20 16:41:46 MDT] LOG: logger shutting down



The /wal_archive/000000010000018F00000037.gz is there accessible on
the NFS mount.

Is there a way to continue the restore process from where it left off?

Thanks,

____________________________________________________________________
Brendan Duddridge | CTO | 403-277-5591 x24 |  brendan@clickspace.com

ClickSpace Interactive Inc.
Suite L100, 239 - 10th Ave. SE
Calgary, AB  T2G 0V9

http://www.clickspace.com

On Apr 20, 2006, at 3:19 PM, Jeff Frost wrote:

> On Thu, 20 Apr 2006, Brendan Duddridge wrote:
>
>> Hi,
>>
>> We had a database issue today that caused us to have to restore to
>> our most recent backup. We are using PITR so we have 3120 WAL
>> files that need to be applied to the database.
>>
>> After 45 minutes, it has restored only 230 WAL files. At this
>> rate, it's going to take about 10 hours to restore our database.
>>
>> Most of the time, the server is not using very much CPU time or I/
>> O time. So I'm wondering what can be done to speed up the process?
>
> Brendan,
>
> Where are the WAL files being stored and how are they being read back?
>
> --
> Jeff Frost, Owner     <jeff@frostconsultingllc.com>
> Frost Consulting, LLC     http://www.frostconsultingllc.com/
> Phone: 650-780-7908    FAX: 650-649-1954
>
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