Xms and Xmx values in JVMOptions.txt of Policy Server

Products

• SITEMINDER

Issue/Introduction

When running a Policy Server, is it recommended to increase the values of -Xms and -Xmx from JVMOptions.txt ?

 

Environment

Siteminder release: 12.8.x , 12.9 
component : Policy Server 
OS: All 

Resolution

The out of the box values should be kept as is, unless specific issue is experienced which would require tuning.

Usually the symptoms are a lack of available memory for the jvm reported by such a message (1) :

   java.lang.OutOfMemoryError: Java heap space

 

Additional Information

 

(1)
  

   What are the -Xms and -Xmx parameters when starting JVM?

 The Xms flag has no default value, and Xmx typically has a default value of 256 MB. A common use for these flags is when you encounter a java.lang.OutOfMemoryError.

    what are the xms and xmx parameters when starting