This section provides some hints on troubleshooting. It follows the general
outline:
- Define the problem.
- Obtain information (documentation) on the problem.
When you have a problem, first try to define the circumstances that gave
rise to it. If you need to report the problem to the IBM® software support center, this information
is useful to the support personnel.
- What is the system configuration?
- CICS® Transaction Server release
- TCP/IP for MVS™ release
- Language Environment® release
- OS/390® release
- What is the connection manager configuration?
- Operating options
- Registered 4-tuples
- When did the problem first occur?
- What were you trying to accomplish at the time the problem occurred?
- What changes were made to the system before the occurrence of the problem?
- To the OS/390 system
- To CICS ONC RPC
- To the CICS program being called by the client
- To the converter being used in the call
- To the XDR routines being used in the call
- To the client
- To CICS Transaction Server
- To TCP/IP for MVS
- What is the problem?
- Incorrect output
- Hang/Wait: If you suspect that CICS ONC RPC aliases may be in a hung state,
you can use the connection manager to display a list of alias transactions
and can display associated details. See Processing the alias list.
- Loop: Use CEMT INQUIRE to display the details of the transaction.
- Abend in user-replaceable program
- Abend in a CICS program
- Abend in the IBM-supplied part of CICS ONC RPC
- Performance problem
- Storage violation
- Logic Error
- At what point in the processing did the problem occur? (Use Figure 36.)
- What was the state of TCP/IP for MVS? (Try the rpcinfo command.)
To investigate most problems, you must look at the dumps, traces, and logs
provided with MVS and CICS.
- System Dump: This contains the CICS internal trace
- CICS auxiliary trace, if enabled
- TCP/IP for MVS trace
- GTF trace, if enabled
- Console log
- CSMT log
- CRPO log
- CICS job log
To identify which are likely to be useful for your problem, try to work
out the area of CICS ONC RPC giving rise to the problem, and read the relevant
section in the rest of this section.
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