By default, intending users of CICS see the CICS "good-morning" panel displayed when they logon to CICS as a VTAM application (see Figure 182).
Use the CESF transaction to sign off from the CICS system.
- Writes the signoff message to your terminal
- Logs the message on the transient data destination CSCS
- Logs any error message on the transient data destination CSMT.
Use the CEBR transaction to browse temporary storage queues and to delete them.
You can also use CEBR to transfer a transient data queue to temporary storage in order to look at its contents, and to recreate the transient data queue when you have finished. The CEBR commands that perform these transfers allow you to create and delete transient data queues as well.
- browsing of Temporary Storage queues retrieves the next record, following whichever record has most recently been retrieved by ANY active task.
This is can lead to confusion if for example an EXEC CICS READQ NEXT and a CEBR transaction attempt to work with the same Temporary Storage queue at the same time.
- transient data queue reads are destructive. If you read a transient data queue that is being used on an active system by applications, this is likely to cause problems.
You start the CEBR transaction by entering the transaction identifier CEBR, followed by the name of the queue you want to browse. For example, to display the temporary storage queue named CEBRS209, you enter:
If the queue name includes lower case characters, ensure that upper case translation is suppressed for the terminal you are using, and then enter the correct combination of upper and lower case characters.
Use CECI, which invokes the CICS command-level interpreter, to enter an EXEC CICS command, check its syntax, and modify it if necessary. In most cases, you can also process the command.
For programming information on each EXEC CICS command, see the CICS® Application Programming Reference or the CICS System Programming Reference.
For details of how to use the CECI transaction, see the CICS Application Programming Guide, which includes an example of a complete session with CECI.
Use CEDA to define resources to your CICS system while the system is running. With CEDA, you can update both the CICS system definition (CSD) file and the running CICS system.
Start the transaction by entering CEDA on the command line of the screen. Press ENTER. You get the following screen (Figure 30), which shows the options available within CEDA.
CEDF allows you to intercept your application programs at the program’s initiation, at each CICS command, and at the program termination. CEDF helps you to isolate and focus on problems in your application programs.
For information on how to use the CEDF transaction, see the CICS® Application Programming Guide.
You must ensure that the EDF resource definitions are installed. These resource definitions are provided in the IBM-supplied group, DFHEDF. For information about installing the resource definitions, see the CICS Resource Definition Guide.
You must also ensure that the terminal from which you run EDF is in transceive (ATI/TTI) status.
DISCARD does not affect the CICS system definition (CSD) file, and you can therefore reinstate the resource using CEDA INSTALL(resourcename). DISCARD commands require ALTER access to the resource to provide similar security to that for SET commands (which use UPDATE access). You cannot discard resources that are currently in use or are CICS owned resources (beginning with "DFH" or "C").
The INQUIRE command causes the status of the specified resources to be displayed. The SET command makes the changes that you specify, and displays the new status of the resources. No changes are made if there are syntax errors in the SET command.
- |Initialize and terminate the shared class cache, and set |its attributes (PERFORM CLASSCACHE)
- Publish or retract all the beans installed in a CorbaServer; or scan a CorbaServer’s deployed JAR file directory for new or updated deployed JAR files (PERFORM CORBASERVER)
- Cause the CICS timeout delete mechanism to be invoked immediately (PERFORM DELETSHIPPED)
- Publish or retract beans installed in a deployed JAR file (PERFORM DJAR)
- Dump and continue processing (PERFORM DUMP or PERFORM SNAP)
- End an affinity owned by CICS (PERFORM ENDAFFINITY)
- Reset the date and time of day (PERFORM RESET)
- Rebuild the RACF resource profile (PERFORM SECURITY REBUILD)
- Shut down the CICS region (PERFORM SHUTDOWN)
- Request statistics to be recorded (PERFORM STATISTICS RECORD).
The SET command makes the changes that you specify, and displays the new status of the resources. No changes are made if there are syntax errors in the SET command.To change the attributes of a resource, enter SET (or a suitable abbreviation) on the command line. The keywords you can use with CEMT SET are described in the rest of this section.
CEMT SET PROG(prog name) NEWC