HP 3000 Manuals HP 3000 Manuals
Chapter 1 Introduction The MPE XL User Logging facility provides a method for recording events (for example, to record additions and modifications to user databases and files). MPE XL commands and intrinsics are used to setup logfiles and record to them. Power failure recovery, buffering, and logfile overflow handling can be done for the user automatically. Multiple user processes may share the same logfile and share the system process that manages it. This allows the User Logging overhead to be shared between multiple user processes. User Logging can be used to keep a record of changes made to data for historical purposes or to aid in the recovery process of lost data due to application and system failures.