Configuring java heap size

The Java Virtual Manager (JVM) requires a certain amount of memory to monitor databases. The memory allocated to JVM depends on the monitoring profile settings and the number of databases being monitored. If you are monitoring large number of databases, it is recommended to increase the initial (Xms) and maximum (Xmx) heap size values to prevent out of memory errors.

Procedure

To configure java heap size values:

  1. Log into web console.
  2. Click Administration and go to Settings > JVM.
  3. Specify the maximum memory allocation pool (Xmx) and initial memory allocation pool (Xms) values for the JVM in the respective fields. Refer to the following table for Xmx values based on number of databases.
    Monitor DB# JVM parameter
    0-20 -Xmx 2048m
    20-100 -Xmx 24576m
    100-300 -Xmx 49152m
  4. Click Save.

    Restart the server for the java heap size changes to take effect.