On Wed, Jun 02, 2010 at 11:58:47AM +0100, Tom Wilcox wrote: > Hi, > > Sorry to revive an old thread but I have had this error whilst trying to > configure my 32-bit build of postgres to run on a 64-bit Windows Server > 2008 machine with 96GB of RAM (that I would very much like to use with > postgres). > > I am getting: > > 2010-06-02 11:34:09 BSTFATAL: requested shared memory size overflows size_t > 2010-06-02 11:41:01 BSTFATAL: could not create shared memory segment: 8 > 2010-06-02 11:41:01 BSTDETAIL: Failed system call was MapViewOfFileEx. > > which makes a lot of sense since I was setting shared_buffers (and > effective_cache_size) to values like 60GB.. I realize other answers have already been given on this thread; I figured I'd just refer to the manual, which says, "The useful range for shared_buffers on Windows systems is generally from 64MB to 512MB." [1] [1] http://www.postgresql.org/docs/8.4/static/runtime-config-resource.html -- Joshua Tolley / eggyknap End Point Corporation http://www.endpoint.com
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