SAP WAS Heap Memory Test

This test continuously monitors the JVM heap usage of the target SAP Web Application server and promptly alerts administrators when memory usage is at the maximum.

Target of the test : A SAP Netweaver Application Server

Agent deploying the test : An internal/remote agent

Outputs of the test : One set of results for each Process:Type of Garbage Collection triggered on the target SAP Netweaver Application Server being monitored

Configurable parameters for the test
Parameter Description

Test period

How often should the test be executed

Host

Specify the server for which the test is to be configured.

Port

The port number at which the specified server listens.

WSDL Port

This test uses the SAPControl web service to pull metrics on application and service status. To enable the test to communicate with the web service, you need to configure the test with the port number of the web service. Therefore, specify the port number of the SAPControl web service against WSDL Port. To determine the exact port number of the SAPControl web service, you can look up the etc/services file on the SAP WAS being monitored. If the port number is not declared in the etc/services file, you can specify the default port number of the web service against WSDL Port. If the web service is not SSL-enabled, then the default port number of the web service will be: 5<NR>13. Similarly, if the web service is SSL-enabled, then the default port number of the web service will be: 5<NR>14. <NR> in the port number refers to the system number of the SAP server being monitored. The system number is an indicator of the TCP/IP port at which the SAP server listens. For example, for a server that listens at port 3200, the system number will be ‘00’. Similarly, if the SAP server port is 3201, the system number will have to be specified as ‘01’. Accordingly, the default port number of an SSL-enabled SAPControl web service will be 50014 , if the system number is 00, or 50114, if the system number is 01.

OS Username and OS Password

To enable the test to access the SAPControl web service and determine component state, you need to configure the OS Username and OS Password parameters of the test with the credentials (i.e., name and password) of an OS user, who fulfills one of the following conditions:

  • The name of the OS user should be declared using the service\admin_users profile parameter; (OR)
  • The name of the user group to which the OS user belongs should be declared using the service\admin_groups profile parameter; (OR)
  • The OS user should have the permission to execute the sapstartsrv executable

Confirm Password

Confirm the OS Password by retyping it here.

SSL

Set this flag to Yes, if the SAPControl web service is SSL-enabled. Set this flag to No, if the SAPControl web service is not SSL-enabled.

Detailed Diagnosis

To make diagnosis more efficient and accurate, the eG Enterprise embeds an optional detailed diagnostic capability. With this capability, the eG agents can be configured to run detailed, more elaborate tests as and when specific problems are detected. To enable the detailed diagnosis capability of this test for a particular server, choose the On option. To disable the capability, click on the Off option.

The option to selectively enable/disable the detailed diagnosis capability will be available only if the following conditions are fulfilled:

  • The eG manager license should allow the detailed diagnosis capability
  • Both the normal and abnormal frequencies configured for the detailed diagnosis measures should not be 0.
Measurements made by the test
Measurement Description Measurement Unit Interpretation

Used memory

Indicates the amount of memory utilized by this heap area.

MB

Ideally, the value of this measure should be low. A high value or a consistent increase in the value could indicate gradual erosion of memory resources.

Compare the value of this measure across heap areas to figure out the heap area that is utilizing the maximum amount of memory.

Percentage used memory

 

Indicates the percentage of memory utilized by this heap area.

Percent

A value close to 100 indicates that the heap area is running out of memory.

Maximum memory

Indicates the maximum amount of memory allocated to this heap area.

MB

 

Available memory

Indicates the total amount of memory that is available for use by this heap area.

MB

The value of this measure is the sum of Standby memory and Free Memory.

Free memory

Indicates the amount of memory that is currently available for use by this heap area.

MB

Ideally, the value of this measure should be high.

Initial memory

Indicates the amount of memory that was initially allocated to this heap area.

MB