IBM Tivoli Composite Application Manager for Application Diagnostics, Version 7.1.0.1

JDK - Memory attributes

The JDK - Memory attributes provide the memory usage information of the operating system on which the J2SE application server is running. This includes heap memory information, heap memory usage information and pending objects. The data for attributes is gathered from JVM MBeans, which are supported in JVM version 1.5 and higher. No data will be available for JVM with versions lower than 1.5.

The attributes within this group are used to build the JVM Statistics workspace.

Committed Heap Memory Size

The amount of committed heap memory (in kilobytes) allocated to the JVM (supported for JVM version 1.5 and higher). Format is positive integer.

Committed Non Heap Memory Size

The amount of committed non heap memory (in kilobytes) allocated to the JVM (supported for JVM version 1.5 and higher). Format is positive integer.

Initial Heap Memory Size

The initial amount of the heap memory (in kilobytes) for the JVM of the J2SE application server (supported for JVM version 1.5 and higher). Format is positive integer.

Initial Non Heap Memory Size

The initial amount of the non heap memory (in kilobytes) for the JVM of the J2SE application server (supported for JVM version 1.5 and higher). Format is positive integer.

Interval (sec)

The length of the interval in seconds (supported for JVM version 1.5 and higher). Format is positive integer.

Maximum Heap Memory Size

The maximum amount of the heap memory (in kilobytes) used by the JVM of the J2SE application server (supported for JVM version 1.5 and higher). Format is positive integer.

Maximum Non Heap Memory Size

The maximum amount of the non heap memory (in kilobytes) used by the JVM of the J2SE application server (supported for JVM version 1.5 and higher). Format is positive integer.

Node Name

The name of the system on which the server is running (supported for JVM version 1.5 and higher). Format is alphanumeric string, with a maximum of 256 characters.

Object Pending Finalization Count

The number of objects that are not finalized (supported for JVM version 1.5 and higher). Format is positive integer.

Origin Node

The name of the server subnode (supported for JVM version 1.5 and higher). Format is alphanumeric string, with a maximum of 128 characters.

Sample Date and Time

The date and time that the monitoring agent collected data (supported for JVM version 1.5 and higher). The valid format is a 12-character timestamp. For the STR and SCAN functions, the format is MM/DD/YY HH:MM:SS; the following table shows the values contained in this character string:


Format of the 12-character timestamp

Character String Meaning
MM Month
DD Day
YY Year
HH Hour
MM Minute
SS Second

Example: 09/13/06 18:32:03 indicates the data was collected on September 13, 2006, at 18:32:03.

This attribute was designed for logging and reporting data-collection times rather than for creating situations. To specify a time and date for comparison and testing, use attributes from the Universal Time or Local Time groups.

Server Name

The name of the J2EE application server (supported for JVM version 1.5 and higher). Format is alphanumeric string, with a maximum of 256 characters.

Used Heap Memory Size

The amount of heap memory (in kilobytes) used by the JVM of the J2SE application server (supported for JVM version 1.5 and higher). Format is positive integer.

Used Non Heap Memory Size

The amount of non heap memory (in kilobytes) used by the JVM of the J2SE application server (supported for JVM version 1.5 and higher). Format is positive integer.


Parent topic:

Attributes for ITCAM Agent for J2EE

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