Le 09/02/2010 05:49, John R Pierce a écrit : > David Kerr wrote: >>>> maintenance_work_mem = 1GB >>> >>> So evidently, when it tries to actually allocate 1GB, it can't do it. >>> Ergo, that setting is too high for your machine. >>> ... >> >> seems like i've got 2GB free. > > > is this a 64bit postgres build? > > if not, you're probably running out of virtual address space in the 32 > bit user space, which is limited to like 2gb. >
IIRC, the virtual address space in 32bit platforms is 4GB. > the other possibility, and here I'm not sure, is that > maintenance_work_mem is coming out of shared memory, and if so, you've > exceeeded your SHMMAX kernel limit. > work_mem and maintenance_work_mem are not shared memory. AFAICT, David need to check if the VACUUM works with a lower setting for maintenance_work_mem. For example, 512MB could work. -- Guillaume. http://www.postgresqlfr.org http://dalibo.com -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
