Logging records activity within the
Application Performance Analyzer Listener started
task. Log data is always written to SYSOUT, but you have the option
of also writing this data to log data sets. LOGFILE settings allow
you manage these data sets. The following settings might be specified:
- LogGDG
- Optional. If you have specified LogToFile=YES, then LogGDG allows
you to specify whether the log data sets are allocated as GDGs or
normal sequential data sets. If you specify LogGDG=YES, you must first
create the Generation Data Group Index using an index name of yourhlq.LLG (or LogHLQ.LLG
if you choose to use LogHLQ). YES and NO are the only valid values.
Default:
NO.
Note: A GDG log file cannot be shared by multiple
instances of Application Performance Analyzer Listener. A second started task with the
same GDG log file fails on start up with messages IKJ56225I and CAZL034S.
A unique GDG log file must be defined for each instance of Application Performance Analyzer Listener.
- LogHLQ
- Specifies the high-level qualifier to be used when creating
log data sets. LogHLQ must comply with the JCL rule for specifying
a data set name. It can be no more than 17 characters long. A data
set is only created if LogToFile=YES is specified.
If this parameter
is not specified, the value that you specify for HLQ on the CONFIG
BASIC statement is used.
Default: None.
- LogPRIM
- Optional. If you have specified LogToFile=YES, then LogPRIM
allows you to specify the size of each log data set that is allocated.
No secondary specification is permitted. Therefore, when the log data
set has filled, it is closed and a new log data set is allocated.
Default: 15.
- LogToFile
- Optional. Specifies whether you want log data to be written
to permanent data sets. YES and NO are the only valid values.
Default:
NO.
Note: It is recommended that LogToFile be set to
YES. The log can be used to help diagnose problems.
- LogUNIT
- Optional. If you have specified LogToFile=YES, then LogUNIT
allows you to specify whether you want the log data set to be allocated
in Tracks or Cylinders. T and C are the only valid values.
Default:
T.