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|Oracle Fusion Middleware Administration Guide for Oracle Unified Directory 11g Release 1 (11.1.1)|
The following items can improve performance in specific deployment scenarios.
Java Version. Use the most recent Java Runtime Environment (JRE) release available. Although the server is designed to work with Java SE 5 (minimum version 1.5.0_08), use the latest Java SE 6 for noticeably better performance.
Environment Variables. The server uses the OPENDS_JAVA_HOME environment variable to point to your installed JRE. If you have multiple versions of Java installed on a system, set the JAVA_HOME environment variable to point to the root of the desired installation. In this way, the version of the JRE specified by the JAVA_HOME variable can be used by other applications but not by Oracle Unified Directory.
To specify a JRE installation for the server, do one of the following:
Use the dsjavaproperties command to set the appropriate environment variables.
For more information, see dsjavaproperties in Oracle Fusion Middleware Command-Line Usage Guide for Oracle Unified Directory.
Set the OPENDS_JAVA_BIN environment variable (with the JAVA binary path).
Set the OPENDS_JAVA_HOME environment variable (with the JAVA installation path).