To prevent performance loss and memory exceptions as well as the associated instability during memory shortages, memory usage of the analysis server is monitored. The system reports the risk of imminent server performance loss caused by memory shortages and errors. Memory usage checks of the analysis server's memory utilization requires specific system resources. To prevent the check from affecting overall system performance, it is cyclical and performed only for certain system activity:
Data import - Upon import of new data started with the runppmimport or runprocessimport command line programs (or specific recalculation with paramsets) - Before calculated EPCs are written to the database during the import of new data. Thus, EPCs whose calculated data can no longer be saved in the analysis server are not written to the database, and analysis server and recovery files remain consistent. - At the end of data import
Before and after manual input of process instance-independent measures
Before and after importing process instance-independent measures using the runpikidata command line program, and before imported PIKI data sets are written to the database.