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Diagnostic messages DFHFC3003 and DFHFC3010 are issued for each log record.
If a data set has both indoubt-failed and other (backout- or commit-) failed units of
work, deal with the indoubt UOWs first, using SET DSNAME UOWACTION,
because this might result in other failures which can then be cleared by the SET
DSNAME RESETLOCKS command.
The batch-enabling sample programs
CICS provides a suite of sample programs to help you automate batch preparation
procedures.
The three coordinating programs, which use CICS distributed program link (DPL)
commands to run programs on a set of nominated CICS regions, are:
DFH0BAT1
This sample program disables, through the programs to which it links, a set of
nominated transactions.
DFH0BAT2
This sample program identifies, through the programs to which it links, the
retained lock information for nominated data sets:
v For each data set, it issues a SET DSNAME RETRY command to try to
resolve any retained locks that are due to transient failures, or failures that
have been corrected.
v After a timed delay to allow retries to run, it issues, for each data set, an
INQUIRE DSNAME RETLOCKS command to determine whether there are
any retained locks. If there are, it issues an INQUIRE UOWDSNFAIL
command to obtain information about any remaining shunted units of work
that have made uncommitted changes to the data set. It displays the
information returned by the command, together with recommended
procedures for resolving the locks.
DFH0BAT3
Through the programs to which it links, this sample program forces locks for
nominated data sets:
v For each data set that has retained locks (determined by issuing INQ
DSNAME RETLOCKS), it forces backout for the shunted indoubt units of
work.
v After a timed delay to allow the forced backouts to run, it resets the locks
for any commit-failed or backout-failed units of work.
The DFH0BAT3 sample program is also useful for resolving pending backouts
after a failure to forward recover a data set. See “Procedure for failed RLS
mode forward recovery operation” on page 198.
For more information about these batch-enabling sample programs see the CICS
Operations and Utilities Guide, which describes how to install the programs and how
to prepare the required input for them. See also the comments contained in the
source code supplied in the CICSTS41.CICS.SDFHSAMP library.
CEMT command examples
The following is a series of CEMT command examples showing how you can use
CEMT to resolve unit of work failures in preparation for batch processing.
1. A CEMT INQUIRE UOWDSNFAIL command for a specified data set shows in
the following display that there are two failed units of work:
178 CICS TS for z/OS 4.1: Recovery and Restart Guide