This parameter controls the collection of request metrics
on the entire database and affects requests executing in any DB2® service classes.
- Configuration type
- Database
- Parameter type
-
- Default [range]
- BASE [NONE, BASE, EXTENDED]
- Upgrade Note
- On
databases created before V9.7 and
then upgraded to V9.7 or
higher, the mon_req_metrics parameter is set
to NONE by default.
- If
you are upgrading from a DB2 Version 9.8 Fix Pack 4 pureScale environment
or earlier, the value of mon_req_metrics is set
to the value on member 0.
If you set this configuration
parameter to BASE,
request metrics are collected for all requests executed on the data
server, irrespective of the DB2 service
class the request runs in.
If you set this configuration
parameter to
EXTENDED, the same metrics are collected
as under the
BASE setting. In addition, the values
reported for the following monitor elements are determined with more
granularity:
- total_section_time
- total_section_proc_time
- total_routine_user_code_time
- total_routine_user_code_proc_time
- total_routine_time
For information about how the EXTENDED setting affects these
monitor elements, refer to the detailed monitor element descriptions.
If
you set this configuration parameter to NONE, request
metrics are collected only for the subset of requests running in a DB2 service class whose service
superclass has the COLLECT REQUEST METRICS clause set to BASE.
The
following monitor interfaces report request metrics:
- MON_GET_UNIT_OF_WORK
- MON_GET_UNIT_OF_WORK_DETAILS
- MON_GET_CONNECTION
- MON_GET_CONNECTION_DETAILS
- MON_GET_DATABASE
- MON_GET_DATABASE_DETAILS
- MON_GET_ROUTINE
- MON_GET_ROUTINE_DETAILS
- MON_GET_SERVICE_SUBCLASS
- MON_GET_SERVICE_SUBCLASS_DETAILS
- MON_GET_WORKLOAD
- MON_GET_WORKLOAD_DETAILS
- Statistics event monitor (DETAILS_XML monitor element in the event_wlstats
and event_scstats logical data groups)
- Unit of work event monitor
If you use these interfaces, consider setting mon_req_metrics to
a value other than NONE. Each interface topic contains
a list of the monitor elements that are reported and the details on
whether a monitor element is controlled by the mon_req_metrics database
configuration parameter.