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?
Regards.
* http://www.redhat.com/docs/manuals/dir-server/8.1/admin/memoryusage.html
* http://www.redhat.com/docs/manuals/dir-server/8.1/admin/Monitoring_Server_and_Database_Activity-Monitoring_Database_Activity.html
* http://www.redhat.com/docs/manuals/dir-server/8.1/admin/Monitoring_Server_and_Database_Activity-Monitoring_Server_Activity.html#tab.Global_Database_Cache_Information
* http://www.redhat.com/docs/manuals/dir-server/8.1/admin/Monitoring_Server_and_Database_Activity-Monitoring_Server_Activity.html#Monitoring_Server_Activity-Monitoring_the_Server_from_the_DS_Console