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WebSphere logs
Log files provide information about administrative and application servers as they
initialize and run. After an error or problem condition occurs, logs can be
reviewed for clues as to what happened. The logs provided by WebSphere
include stderr, stdout, wasdb2, and wssetup logs and are located in the
\WebSphere\AppServer\logs directory.
► Stderr and stdout logs
These capture events presented through two of the three standard I/O
streams. Stdin are the arguments entered with a command or program.
Stdout is the output displayed to the user. Stderr are the errors thrown by the
code.
The stdout and stderr logs contain application server communication, for
application servers and the admin server, providing error and informational
messages that reflect server startup and server status change requests, such
as start, stop, and restart. Entries displayed in the Event Viewer are written to
the standard out log.
Output from System.err.println and System.out.println statements in the
application code will also appear in the application server stdout and stderr
logs respectively.
By default, logs for the default server are output to the files
Default_Server_stdout.log and Default_Server_stderr.log. The file name and
destination directory of the logs can be specified in the File tab of the default
server node (Figure 11-31).
Figure 11-31 Specifying file destinations for server logs
Chapter 11. CICS TG and WebSphere Application Server for Windows 319