Performance issues

If you are experiencing problems with the performance of your directory server, use this information to find possible fixes and workaround.

Identification of performance problem areas
Use the server audit log and idsslapd trace for identifying areas that might be affecting the performance of your directory server.
Setting the SLAPD_OCHANDLERS environment variable on Windows
On Windows™ systems, if you have clients that are generating many connections to the server and the connections are being refused, set the SLAPD_OCHANDLERS environment variable to 15 before you start the server.
DB2 rollbacks and isolation levels
If you are experiencing rollback activities in DB2®, check the isolation level. Rollbacks occur when one application process has a row that is locked while another application process tries to access that same row.
Default value of LOGFILSIZ must be increased
If you are adding a large group to your directory, you must modify the LOGFILSIZ parameter of your DB2® database.
Audits for performance profiling
To identify performance bottlenecks during operation execution, you can check the server audit log for the summary figures that indicate performance hotspots.
Optimizing replication performance with volatile attributes
Improve replication performance by separating volatile attribute replication from regular attribute replication. This ensures that frequent changes to volatile attributes do not delay the replication of critical non-volatile attributes.

Parent topic: Troubleshooting