Altering the behavior of a running Capture program

You can dynamically change the value of one or more Capture operating parameters. The changes are not saved in the IBMSNAP_CAPPARMS table, but are used until you stop the Capture program or supply new values.

About this task

z/OS®, Linux®, UNIX, Windows: You can change the following Capture parameters while the Capture program is running:

  • autoprune
  • autostop
  • commit_interval
  • lag_limit
  • logreuse
  • logstdout
  • memory_limit
  • monitor_interval
  • monitor_limit
  • prune_interval
  • retention_limit
  • sleep_interval
  • term
  • trace_limit
Restriction on z/OS: The amount of memory that the Capture program can use to build messages is determined when the Capture program starts, based on the value of the memory_limit parameter and the REGION size that is specified in the JCL. The value of memory_limit cannot be altered with the Capture program is running. To change the value you must first stop the Capture program.

IBM® i: You can override the values for the following operational parameters for a given Capture schema:

  • CLNUPITV
  • FRCFRQ
  • MEMLMT
  • MONLMT
  • MONITV
  • PRUNE
  • RETAIN
  • TRCLMT

When you change the values, the effects might not be immediate for all parameters.

Procedure

To alter the behavior of a running Capture program, use one of the following methods:
Method Description

MODIFY or asnccmd chgparms system command (z/OS, Linux, UNIX, Windows)

This method does not show the current values of the parameters.

OVRDPRCAPA system command (IBM i)

Use the Override DPR Capture attributes (OVRDPRCAPA) command to alter the behavior of a running Capture program.