During setup two jobs are scheduled to delete old data.
Deleting old EEM data
EEM data is deleted by the batch job EEM_DATA_HK. You can specifiy how long the results from EEM script executions are kept. The default value is 30 days.
Deleting E2E Traces
When system times are collected they are also persisted in the Java stack by the E2E Trace application. The batch job EEM_TRACE_HK deletes the E2E Traces created by EEM. You can specify how long the E2E Traces are kept in two steps:
1. Deleting old traces after n hours. the default value is 168 hours (7 days).
2. Deleting traces that are not rated red. All traces that did not lead to a red execution in EEM are deleted faster. The default time for deleting these traces is 24 hours.
When many traces are collelcted (> 10.000 script executions per day) it makes sense to schedule the job two times per day.
It is very important to apply the latest corrections for your SP
1558657 Corrections for End-user Experience Monitoring SP26
1503111 Corrections for End-user Experience Monitoring SP25
1462910 Corrections for End-user Experience Monitoring SP23/24
and check regularly the result of the housekeeping job EEM_TRACE_HK. If you collect many system data or traces and house keeping job is not running correctly the SAP J2EE engine of the Solution manager could run into an OutOfMemory. When the job has not been running for a longer time but in parallel many traces have been collected the housekeeping job itself could run into an OutOfMemory when deleting the traces. In that case you could start the attached program Z_E2E_TRACE_DELET in background.
The parameters specify:
max_age: Live time (in hours)for E2E Traces that should be deleted.
min_age: Live time (in hours) for E2E Traces that should not be deleted
delta_t: Step size (in hours) how max_age is decreased until min_age is reached.