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Perhaps running syncrpl between ramdisk and
hardisk ?
On 10/19/2010 11:00 AM, Benjamin Griese wrote: Hi Frank, by rsync to hdd, do you mean copying the db files or slapcat the output to a file? The first one seems to be a db killer if the db is in use while copying it. :) I think the only safe way is by doing a slapcat after every write to the db (accesslog?). Anyway, sounds like a nice idea to me to get a big performance boost. Have you considered SSDs instead of ramdisks? Imo its the more safe and nearly as fast as ramdisk alternative. :) Bye, Benjamin. On Tue, Oct 19, 2010 at 10:40, Frank Bonnet <f.bonnet@esiee.fr> wrote:Hello I'm thinking to put db files in RAM instead of hard disk for performance reasons. FreeBSD ( and Linux thought ) provide some utility to build RAMDISK ( md ) I did some tests in rebuilding db files with the slapcat/slapadd commands with RAMDISK ldap3# time slapadd -l test.ldif /usr/local/etc/openldap/slapd.conf: line 110: rootdn is always granted unlimited privileges. #################### 100.00% eta none elapsed 20s spd 633.9 k/s WITH HARDDISK ldap3# time slapadd -l test.ldif /usr/local/etc/openldap/slapd.conf: line 110: rootdn is always granted unlimited privileges. #################### 100.00% eta none elapsed 04m22s spd 48.4 k/s Does anyone runs production servers with ramdisk ? I know it is risky but running rsyncd between ramdisk and a hardisk depot would be safe huh ? Thanks for any advices |