I was meeting a customer today. He is interested in migrating from Sun Directory Server 5.2 to Sun OpenDS Standard Edition 2.0 (target release date is Mid July 2009).
Why Sun OpenDS SE 2.0 and not Sun Directory Server 6.3.1? I was told the price for commercial support differ by quite a lot, at least S$12k for his case. Wow!
Anyway, that's not my objective. I'm providing Professional Service/Consultancy. I'll leave the pricing to the folks.
So, I asked during the meeting when is the peak period and what is the concurrent hit like? I was given figures ranging from 70-80k per hour to 5 millions hit per day.
I was not convinced. Thus I asked for facts which can be easily extracted with the tools provided by Sun Directory Server 5.2.
You can use the GUI to monitor the suffix status online. (Click on "Continuous refresh") Otherwise, for people like me, command-line is best.
bash-3.00# ldapsearch -D "cn=Directory Manager" -w password -b "cn=monitor,cn=userRoot,cn=ldbm database,cn=plugins,cn=config" objectclass=*
version: 1dn: cn=monitor,cn=userRoot,cn=ldbm database,cn=plugins,cn=configobjectClass: topobjectClass: extensibleObjectcn: monitordatabase: ldbm databasereadonly: 0nextid: 10dbentrycount: 9ldapentrycount: 9entrycachehits: 26entrycachetries: 36entrycachehitratio: 72currententrycachesize: 14796maxentrycachesize: 10485760currententrycachecount: 9maxentrycachecount: -1
Remember to execute the above command over a period of time in order to capture the overall statistics. A cron job will help.