BW background management provides basic functions for functions
for managing background and parallel processes in the BW system. Collection of
the background management plus logs and tools is what is BW data processing all
about. Simply speaking it comprises of all the tasks that runs as the
background jobs that are performing BW tasks like data
loading, parallelization,
indexing,
filling aggregates, archiving,
attribute change run, broadcasting,
compression, data
activation, rollups, remodeling,
collecting
statistics, logs,
messages,
etc. All the BW background management jobs are visible in t-code RSBATCH.
All
these tasks running all the time in the BW systems are producing a great amount
of logs and messages. The table that is used to store those logs and message is
RSBATCHDATA. In order to prevent the table to grow a lot there is a job that
can do a housekeeping activities. The job is usually called BI_DELETE_OLD_MSG_PARM_DTPTEMP and it
runs the ABAP program RSBATCH_DEL_MSG_PARM_DTPTEMP.
It deletes old messages, parameters and temporary DTP Data etc. On its selection
screen, it is possible to specify the no of days as a retention period (delete
all records older than X days, where X is from zero to 999) for messages, logs and
DTP temporary data. It usually runs on daily basis.
The
job can be scheduled from t-code RSBATCH
-> under Settings and Parallel Processing part -> Deletion selection.
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