Tuesday Sep 16, 2008

Debugging a low performance incident within a DPS6 instance

It is not unusual that the performance of Java Applications gets reduced over time due to inadequate JVM tuning. This is not an exception for the 100% java DPS6 product. The following entry allows to dig into any java process garbage collector related information and use that information to determine whether the over time performance drops could be related to garbage collection undesired/uncontrolled intrusions or not.


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Monday Aug 13, 2007

How to know if you are running a DS 5.2 Patch5 timebomb affected system and how to fix it

If you are running a DS 5.2 Patch5 instance, you may be running a time bombed daemon without knowing it (Bug 6587775). This entry explains how to check if that is the case, which implications that may have for your deployment  and what actions can be undertaken to repair the mess.

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Caution when installing new server certificates in topologies running Solaris8 and/or Solaris9 ldap client machines

Important connectivity problems may suddenly appear in a secured LDAP-based Naming Services deployment after the expiration of the Directory Server certificates. Depending on how those certificates will be renewed and on the current versions of the Directory Server instances, the Solaris8 and Solaris9 clients may still be unable to successfully contact the Directory Servers even after a succesful deployment of the new certificates. This issue is very rarely documented, so I decided to write a blog entry about it.

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Tuesday Jun 19, 2007

How to forward Extended Operations in DPS6

By default, Directory Proxy Server 6 only forwards DS instances the StartTLS and the WhoAmI extended operations towards its backend data sources. This blog entry tells you how to make DPS6 forward other extended operations, as the Password Modify Extended Operation, for example.[Read More]

Thursday Jun 07, 2007

How to route cn=Directory Manager through DPS6

Because of the unfortunate but highly spread usage of cn=Directory Manager as the binding identity on many LDAP administrative environments, some client apps risk to get "broken" as soon as DPS6 will be installed in their way towards their DS backends. The reason lies in the fact that DPS does not handle cn=directory Manager forwarding by default. This blog analyzes the symptoms of these scenarios and provides the instructions to overcome them.

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Thursday May 17, 2007

Properly mapping of certificates in a DPS 6 - DS 6 topology

This blog entry helps avoiding a tedious iterative warning during SSL handshakings. It is also intended to provide hints on certificates manipulation in the DPS6 and DS6 series

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