HEARTBEAT_POLLING_PERIOD (Parameter)

Parameter: HEARTBEAT_POLLING_PERIOD

Definition

The polling period in milliseconds of the heartbeat mechanism

Description and Use

The heartbeat mechanism is responisble for checking whether the instances are still alive in the SAP CC Core Server system by pinging them at regular intervals. This HEARTBEAT_POLLING_PERIOD parameter defines the period in milliseconds between two pings. This mechanism detects down or newly restarted instances in the SAP CC system.

Notes

The smaller the value, the faster the detection of down or restarted instances is and the shorter the service interruption is. However more network resources are used. A high value makes the service interruption longer but the network resources usage is lower when all goes well.
A similar parameter exists on client side through the com.highdeal.cnd.message.ServiceClientTuning class. Please consult this Java class documentation and the SAP CC Java API Reference (aka Javadoc) for more information and user assistance.

Syntax and Constraints

This parameter must be greater than 0.

Defined Constraints

The SAP CC Core Server system verifies the following constraints:

Instance Type	Constraint
Rater instances	The parameter must be greater than or equal to 100 .
Updater instances	The parameter must be greater than or equal to 100 .
Guider instances	The parameter must be greater than or equal to 100 .
Bulkloader instances	The parameter must be greater than or equal to 100 .
Taxer instances	The parameter must be greater than or equal to 100 .
Dispatcher instances	The parameter must be greater than or equal to 100 .

Technical Details

For more information, consult this section.

Name

HEARTBEAT_POLLING_PERIOD

The polling period in milliseconds of the heartbeat mechanism

Category Parameter

Type Integer

Access (RO/RW)

RW(-): Dynamic Read / Static Write

An immediate change is not possible. For a deferred and permanent change, use the set command of the Admin+ user interface to change the parameter value for a specific type of instance in the SAP CC Core Server system. A restart is needed for permanent changes.

Groups

System: Network and Communication

Instance Types

This system parameter is available in the following types of instances in a running SAP CC Core Server system:

rater, updater, guider, bulkloader, taxer, dispatcher

Default Values (Factory Settings)

The predefined default values are:

Instance Type	Value
Rater	`2000`
Updater	`2000`
Guider	`2000`
Bulkloader	`2000`
Taxer	`2000`
Dispatcher	`2000`

You can use a default value to reset the runtime value or the restart value (persistent) in the Admin+ user interface.

Note

A default value is part of the factory settings of the SAP CC Core Server systems. It differs from the original value set during the installation or after the Customizing activities.

In Admin+, you can reset a parameter value to this default value, but it is not recommended:

This value may differ from the original value set during the installation of your SAP CC system.
Note that it may also differ from the value defined by the implementation project team and set during the Implementation Phase of the integration project.

Verify the values in your running SAP CC systems before to use the reset command.

Constraints

The SAP CC system checks the following constraints:

Rater instances	The parameter must be greater than or equal to 100 .
Updater instances	The parameter must be greater than or equal to 100 .
Guider instances	The parameter must be greater than or equal to 100 .
Bulkloader instances	The parameter must be greater than or equal to 100 .
Taxer instances	The parameter must be greater than or equal to 100 .
Dispatcher instances	The parameter must be greater than or equal to 100 .