Re: out of memory in backup and restore

Hi,

free diskspace is 34gb (underlying xfs) (complete db dump is 9gb). free
-tm says 6gb free ram and 6gb unused swap space.
can i decrease shared buffers without pg restart?

thx
Thomas

Shoaib Mir schrieb:
> Looks like with 1.8 GB usage not much left for dump to get the
> required chunk from memory. Not sure if that will help but try
> increasing the swap space...
>
> -------------
> Shoaib Mir
> EnterpriseDB ( www.enterprisedb.com <http://www.enterprisedb.com>)
>
> On 12/15/06, *Thomas Markus* <t(dot)markus(at)proventis(dot)net
> <mailto:t(dot)markus(at)proventis(dot)net>> wrote:
>
> Hi,
>
> logfile content see http://www.rafb.net/paste/results/cvD7uk33.html
> - cat /proc/sys/kernel/shmmax is 2013265920
> - ulimit is unlimited
> kernel is 2.6.15-1-em64t-p4-smp, pg version is 8.1.0 32bit
> postmaster process usage is 1.8gb ram atm
>
> thx
> Thomas
>
>
> Shoaib Mir schrieb:
> > Can you please show the dbserver logs and syslog at the same
> time when
> > it goes out of memory...
> >
> > Also how much is available RAM you have and the SHMMAX set?
> >
> > ------------
> > Shoaib Mir
> > EnterpriseDB ( www.enterprisedb.com
> <http://www.enterprisedb.com> <http://www.enterprisedb.com>)
> >
> > On 12/15/06, *Thomas Markus* <t(dot)markus(at)proventis(dot)net
> <mailto:t(dot)markus(at)proventis(dot)net>
> > <mailto: t(dot)markus(at)proventis(dot)net
> <mailto:t(dot)markus(at)proventis(dot)net>>> wrote:
> >
> > Hi,
> >
> > i'm running pg 8.1.0 on a debian linux (64bit) box (dual
> xeon 8gb ram)
> > pg_dump creates an error when exporting a large table with
> blobs
> > (largest blob is 180mb)
> >
> > error is:
> > pg_dump: ERROR: out of memory
> > DETAIL: Failed on request of size 1073741823.
> > pg_dump: SQL command to dump the contents of table
> "downloads" failed:
> > PQendcopy() failed.
> > pg_dump: Error message from server: ERROR: out of memory
> > DETAIL: Failed on request of size 1073741823.
> > pg_dump: The command was: COPY public.downloads ... TO stdout;
> >
> > if i try pg_dump with -d dump runs with all types (c,t,p),
> but i cant
> > restore (out of memory error or corrupt tar header at ...)
> >
> > how can i backup (and restore) such a db?
> >
> > kr
> > Thomas
> >
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> >
> >
>
>