Resource Management Parameters 
The parameters listed below control the gateway resources: These include number of external connections, memory consumption, and so on.
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 |
Unit |
Integer (maximum 4096) |
Dynamic |
No |
gw/max_conn
Specifies the maximum number of connections that can be active at a time.
Default Value |
500 |
Unit |
Integer (maximum 4096) |
Dynamic |
No |
gw/listen_queue_len
The operating system must keep requests in a queue while the connection is being set up. This parameter specifies the maximum number of requests than can have this status at any one time. If the network queue is full, the system rejects any additional connection requests without notifying the sender.
Default Value |
512 |
Unit |
Whole number (between 5 and 1024) |
Dynamic |
No |
gw/max_overflow_usage
Specifies the usage of the overflow area as a percentage from which the gateway slows down its clients, that is it sends SYNC requests. .
Default Value |
20 |
Unit |
Percentage |
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 |
10000000 (10MB) |
Unit |
Bytes (Value between 1000000 and 99900000) |
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. Approximately 200 KB is required for each client that sends data quickly.
gw/req_stack_size
This parameter specifies the number of CICP requests that can be stacked for each CPIC connection.
Default Value |
30 |
Unit |
Whole number (between 5 and 300) |
Dynamic |
Yes |
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.