Using the Logger › Process and View Log Streams › Log Streams Used as Input to a Batch Program

Log Streams Used as Input to a Batch Program

You can use any MVS log stream as an input file to a batch program. However, the batch program needs the assistance of a log stream subsystem exit.

Review these log stream subsystems exits:

• IXGSEXIT is the generic log stream subsystem exit provided by IBM. The exit program must be located in a linklist data set.

  Example IXGSEXIT exit:

  LOGFILE DD DISP=SHR,DSN=log.stream.name,
  SUBSYS=(LOGR,IXGSEXIT,'SUBSYS-opts1','SUBSYS-opts2'),
  DCB=BLKSIZE=nnnnn
  

  This exit program receives control at these event points:

  • Converter
  • Allocation
  • Open
  • Get
  • Close
  • Unallocation
• GSVXLGEX is the CA SYSVIEW specific exit program that processes and returns a record that any program can use. Because the data stored in CA SYSVIEW log streams is in a compressed format, you must use this exit to process the records.

  Example GSVXLGEX exit:

  LOGFILE DD DISP=SHR,DSN=log.stream.name,
  SUBSYS=(LOGR,GSVXLGEX,'SUBSYS-opts1','SUBSYS-opts2'),
  DCB=BLKSIZE=32760