Solution : https://service.sap.com/sap/support/notes/401162 (SAP Service marketplace login required)
Summary :
The SAP R/3 system work processes may fail to start due to port conflicts, where the error "address already in use" is displayed. This issue arises when the predefined ports in /etc/services are occupied by other tasks, due to the dynamic port allocation by Linux in the range 1024-4999. To resolve this problem, as a root user, you can modify the port allocation range via the command "echo '10000 20000' > /proc/sys/net/ipv4/ip_local_port_range". This adjustment allows R/3 processes to use ports that are less likely to be occupied. Verification of this change can be done by inspecting the current port range using "cat /proc/sys/net/ipv4/ip_local_port_range".
Key words :
> /proc/sys/net/ipv4/ip_local_port_rangethe execution, cat /proc/sys/net/ipv4/ip_local_port_range, additional key words, standard linux installation, symptom work processes, dynamically occupy ports, dynamically occupied, ports predefined, error message, operating system
Related Notes :
| 171356 | SAP software on Linux: General information |