ABAP Communicator Service

This service is used by the SAP Web AS to start and stop the SAP J2EE Engine, and to send information from the J2EE Engine to the Web AS. It provides properties for connecting to the J2EE Engine, for logging process IDs, and so on.

The ABAP Communicator runs on both server processes and dispatchers.

Dispatcher

Property	Description	Default Value
CONNECT_PORT	A server socket port to which the SAP Web Application Server connects. This port establishes a connection between the SAP Web Application Server and the J2EE Engine cluster.	0
KILL_OLD_SERVER_PIDS	This property takes a Boolean value that specifies whether server processes that were not terminated properly are killed.	YES
PIDsLogFileName	The filename where the process IDs are logged.	../../tools/r3startup/clusterpids
ServerTimeoutAtSoftShutdown	The period after which a "hard" shutdown is performed on the server element if a "soft" shutdown failed.	60
elements	The number of server elements in the cluster. The value of this property is related to the element_<xx>_dir and the element_<xx>_id properties. When you change the `elements` property to "2", you must add two new properties: `element_<1>_dir` and `element_<1>_id` .	1
element_<xx>_dir	The path to the script file that starts the corresponding server element.	/usr/sap/<SID>/JC<Instance_number>/j2ee/cluster/server0, where <SID> is the System ID and JC<Instance_number> is the instance number of the corresponding installation.
element_<xx>_id	The ID of the server element. The default value of this property depends on corresponding ID of the cluster element.

Server

Property	Description	Default Value
PIDsLogFileName	See above.	../../tools/r3startup/clusterpids