Resource Management Parameters

Use

The parameters listed below control the gateway resources. These include number of external connections, memory consumption, etc.

Features

gw/max_sys

Specifies the maximum number of clients connected at a time. Note that the gateway regards an SAP application server as one single client.

Default value

300

Dynamic

No

gw/max_conn

Specifies the maximum number of connections that can be active at a time. This includes connections via LU6.2 to a HOST (R/2) and connections via TCP/IP.

Default value

500

Dynamic

No

gw/max_overflow_usage

Specifies the usage of the overflow area in % from which the Gateway slows down its clients, i.e. sends SYNC requests. For information about the overflow area see Memory Management of the SAP Gateway.

Default value

10

Dynamic

Yes

gw/max_overflow_size

This parameter specifies the size of the overflow area in bytes. The gateway allocates local process memory for this overflow area.

Default value

1000000 (1MB)

Dynamic

Yes

If many clients send their data faster than the receivers can accept it, you can increase the value of this parameter. As the gateway allocates local process memory,  only more swap space is required. For each client that sends data quickly approximately 200 KB is required (for more information, see Memory Management of the SAP Gateway).

gw/req_stack_size

This parameter specifies the number of CICP requests that can be stacked for each CPIC connection.

Default value

30

Dynamic

No

If many clients send their data faster than the receivers can accept it, you can increase the value of this parameter. If you increase the value, more requests can be stacked in the gateway before the data is synchronized with the partner (for more information, see Memory Management of the SAP Gateway).