Troubleshooting in Central Logging 
Procedure
Note
This topic is not valid for SAP systems that run on Microsoft Windows NT hosts. The logging processes described here are not required on these platforms.
if you try to display the central log file and you get the error message Syslog file not found, then you might have problems with the configuration of your central log. To check if the configuration is correct, display the central log file of every server in your SAP system. The central system log should contain the following message:
Central system log is collected on <hostname>,
where <hostname> is the host system that you specified in the rslg/collect_daemon/host parameter.
To check your central log configuration, check the configuration int he host system of the central log and on every server in your SAP system. Ensure that the following parameters are set correctly:
rslg/collect_daemon/host
rslg/collect_daemon/listen_port
rslg/collect_daemon/talk_port
The SAPSYSTEM number in these parameters must be set to the central database server. If one or more instances have different SAPSYSTEM numbers then these systems are ignored in the central log by default. To ensure that these values are identical, set the parameters in the default system profile DEFAULT.PFL (see Setting Parameters for Central Logging).
Note
You do not need a central log if your SAP system has only one instance. In this case set the rslg/collect_daemon/host parameter to NONE. Otherwise, when you try to display a central log, the system displays a warning that it cannot find the central log.