The following trace options allow you to capture the information
needed to detect problems.
To view or set these options, use the WebSphere Application Server
administrative console:
- Select Environment > Manage WebSphere Variables.
- Specify the variable name in the name field and specify the setting in
the value field. You can also describe the setting in the description field
on this tab.
- ras_trace_outputLocation=SYSPRINT | BUFFER | TRCFILE
- Specifies where you want trace records to be sent:
- To SYSPRINT
- To a memory buffer (BUFFER), the contents of which are later written
to a CTRACE data set
- To a trace data set (TRCFILE) specified on the TRCFILE DD
statement in the server's start procedure.
For servers, you may specify one or more values, separated by a space.
For clients, you may specify SYSPRINT only. Defaults:
- For clients, SYSPRINT
- For all other processes, BUFFER
Example: ras_trace_outputLocation=SYSPRINT BUFFER
- ras_time_local=0 | 1
- Specifies whether timestamps in trace records use Greenwich Mean Time
(GMT) or local time. This variable setting controls timestamp format in the
error log, and in traces sent to SYSPRINT or TRCFILE DD.
Default:
0 (GMT)
Example: ras_time_local=1 sets timestamps
to local time.
- ras_trace_ctraceParms=SUFFIX | MEMBER_NAME
- Identifies the CTRACE PARMLIB member. The value can be either:
- A two-character suffix, which is added to the string CTIBBO
to form the name of the PARMLIB member, or
- The fully specified name of the PARMLIB member. A fully specified name
must conform to the naming requirements for a CTRACE PARMLIB member.
If this environment variable is specified and the PARMLIB member is
not found, the default PARMLIB member, CTIBBO00, is used. If neither the specified
nor the default PARMLIB member is found, tracing is defined to CTRACE, but
there is no connection to a CTRACE external writer. Note: The Daemon is the only server that recognizes this environment
variable.
Default: 00 (the default PARMLIB member, CTIBBO00)
Example: ras_trace_ctraceParms=01 identifies PARMLIB member CTIBBO01
- ras_trace_BufferCount= n
- Specifies the number of trace buffers to allocate. Valid values are 4
through 8.
Default: 4
Example: ras_trace_BufferCount=6
- ras_trace_BufferSize= n
- Specifies the size of a single trace buffer in bytes. You can use the
letters K (for kilobytes) or M (for megabytes). Valid values are 128K through
4M.
Default: 1M
Example: ras_trace_BufferSize=2M