2010/8/2 Rich Megginson <rmeggins at redhat.com> > Juan Asensio S?nchez wrote: > > Hi > > > > I am trying to tune the performance of the Directory Server. We have > > increased the memory for the database cache and for each database > > entry cache. These are the new values: > > > > cn=config, cn=ldbm database, cn=plugins, cn=config > > nsslapd-dbcachesize: 838860800 (~800MB) > > > > cn=*,cn=ldbm database, cn=plugins, cn=config > > nsslapd-cachememsize: 125829120 (~120MB) > > > > We have 27 databases, and the servers have 16 GB of RAM, so the server > > should be able to handle all that memory (800 + 120*27 = 4040MB). But > > when I go to the monitoring section of the management console, the > > database cache says the hit ratio is 99% (this is OK according to the > > documentation, near 100%), but the entry cache is 0%, that is very far > > for 100% that the documentation recomends (see screenshots attached). > > Am I confused or the configuration is not correct? > When you start out with an empty cache, the cache hit ratio will be 0 > until entries get into the cache and are pulled from the cache rather > than the database. > > Try doing a search like ldapsearch ... -b "basesuffixofdatabase" > "objectclass=*" > > > Well, the servers are running for a long time, not only a days. I have done that search, but the "Entry cache hit ratio" remains 0. I have also noticed that "Current entry cache size (in entries)" is only 4168, even after the search, although out directory cointains about 50000 entries. Is this normal? > > Regards. > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.fedoraproject.org/pipermail/389-users/attachments/20100803/0a65fb3d/attachment.html
