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RE: caching magic (was: How to trace activity on Window platform ?)
On Thu, 17 Jun 2004, Quanah Gibson-Mount wrote:
> --On Thursday, June 17, 2004 2:28 PM -0500 "Armbrust, Daniel C."
> <Armbrust.Daniel@mayo.edu> wrote:
> > >> - what does shm_key do again?
> >> Allocates the DB database memory to use a shared memory segment (RAM)
> >> rather than disk-based memory environment. It dramatically improves
> >> data load times among other things.
> > Could you give an example of how to use/set this? I looked at the
> > Berkeley docs... And I certainly didn't realize this from their
> > documentation. Maybe I looked at the wrong thing.
> > This goes in the DB_CONFIG file, I assume? I see it requires an int -
> > does it really matter what I pick? I gather from the docs that it is
> > just a key.
> No, it goes in slapd.conf in OpenLDAP 2.2 or later. It is documented in
> the slapd-bdb manpage:
> shm_key <integer>
> Specify a key for a shared memory BDB environment. By
> default the BDB environment uses memory mapped files.
> If a non-zero value is specified, it will be used as
> the key to identify a shared memory region that will
> house the environment.
> >From my slapd.conf:
> database bdb
> shm_key 5
This can go in DB_CONFIG: