Post-installation notes on z/OS error logs

After installation is complete, use the administrative console to change the log stream name or create new log stream names for servers or servants.

Notes:
  • A server's error log stream setting overrides the general WebSphere® Application Server for z/OS® setting, and a servant setting overrides a server setting. Thus, you can set up general error logging, but direct error logging for servers or servants to specific log streams.
  • If you create a new log stream name through the administrative console, you must configure a new log stream on z/OS and, if using the coupling facility, define a corresponding new coupling facility log stream.
  • If you changed an existing log stream, or created a new one, you probably need to restart WebSphere Application Server for z/OS. When the name of a log stream is changed through the administrative console, in most cases a restart of WebSphere Application Server for z/OS is required before the change becomes effective. The only case when the change takes effect automatically is when the log stream name is changed for a server along with other changes that cause the server to be restarted.

If you want WebSphere Application Server for z/OS messages that occur during execution of a z/OS client to be recorded in an error log stream, code the client_ras_logstreamname WebSphere variable in its environment file then initialize the client. For more information about client_ras_logstreamname and the related variable ras_log_logstreamName, see the WebSphere variables in the administrative console or the information center.

Our RACF® samples BBOWBRAC and BBODBRAC give UPDATE authority to the runtime control and servant user IDs for the log stream you created (they require that you supply a log stream name). If you want to grant access to the log stream after installation and configuration, perform the following actions: Follow the sample RACF commands in BBOWBRAC or BBODBRAC.
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