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    cics response codes manual

    PA keys do not allow transfer of data between terminal and CICS. PA Keys are PA1 to PA3 and CLEAR. A CICS transaction is a collection of logically related programs in an application. The whole application could be logically divided into several transactions. CICS looks up for the transaction identifier to find out which program to invoke first to do the work requested. It creates a task to do the work, and transfers control to the mentioned program. It can read and write files and can start other tasks also. LUW states that a piece of work should be done completely or not done at all. A task can contain several Logical Unit of Works in CICS. We will discuss more about it in upcoming modules. The core of CICS known as the CICS Nucleus which consists of IBM-supplied CICS Control Programs and Control Tables. It provides unique advantages. It makes the CICS system highly flexible and thus easy to maintain.It is used to control allocation and deallocation of storage within a CICS region. PPT contains Program name or Mapset name, Task Use Counter, Language, Size, Main storage address, Load library address, etc. It checks if the program is loaded or not. If it is loaded, then the task use counter is increased by 1. If the program is not loaded, then the program is first loaded and the task use counter is set to 1. It gets the load library address from the PPT table. If it finds one, then it checks in the PPT table to find the location of the Program to execute it. We will be discussing the important CICS transactions supplied by IBM in detail. It is used by CICS System Administrators to define CICS table entries and other administration activities. It is used to inquire and update the status of CICS environments and also for other system operations. It will display all the options. Perform. Set CEMT I FILE (file-name)Many CICS commands can be executed using CECI. It executes the command, only if the syntax is correct. It gives you the list of options available.

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    These days, users want information within seconds and in real time. To provide such quick service, we need a system which can process information online. CICS allows users to communicate with the back-end system to get the desired information. Examples of online programs include online banking system, flight reservation, etc.Jobs submitted are executed immediately. Its job is to provide an environment for online execution of application programs. CICS runs in one region or partition or address space. CICS handles scheduling for programs running under it. There are five major services which are provided by CICS. All these services together perform a task. Task Control allocates the processor time among concurrent CICS tasks. This is called multitasking. CICS tries to prioritize the response time to the most important task. Although many tasks may need to use the same application program, CICS loads only one copy of the code into memory. Each task threads its way through this code independently, so many users can all be running transactions that are concurrently using the same physical copy of an application program. Storage control acquires, controls, and frees dynamic storage.We will be discussing more in detail in upcoming modules. It provides series of statistical information that can be used for system tuning. Application programs use CICS for communication with remote and local terminals and subsystems. Today, 3270 emulation software is available which means that even normal PCs can be used as 3270 terminals. 3270 terminals are dumb terminals and do not do any processing themselves. All processing needs to be done by the application program.A screenshot of a 3278 Model of CRT monitor is shown below.CICS can detect only AID keys. After typing all the input, only when the user presses one of the AID keys, CICS takes control. AID Keys: ENTER, PF1 to PF24, PA1 to PA3, CLEAR.PF Keys are ENTER and PF1 to PF24.

    It can have names from 1 to 7 chars. The three macros that are used to define the screen are DFHMSD, DFHMDI, and DFHMDF. It is macro identifier which shows that we are starting a mapset. The mapset name is the load module name and an entry in PPT table must be present.It shows that we are starting a new map. Mapname is followed by the DFHMDI macro. Mapname is used to send or receive maps.Required for the CICS command level. The field name is mentioned against which DFHMDF macro is coded. This field name is used inside the program. We do not write field name against constant field which we do not want to use inside the program.We use this to specify labels and titles for the screen and keep them independent of the program.The cursor skips to the next field. Data cannot be entered into this field. If data is entered, it will cause the input-inhibit status. Data can be entered and this is used for all input fields. Only numbers (0 to 9) and special characters('.' and '-') are allowed. In case, IC is specified more than once, the cursor is placed in the last field. The application program has access only to the data present in the symbolic map. The application program processes the data and the output is sent to the symbolic map. BMS will merge the output of the symbolic data with the physical map. It is assembled separately and link edited into the CICS library. The Copy book is used by the CICS application program to send and receive data from the terminal. The application programmer uses these fields to read and write data into the map. But when you display this map using CICS and start entering values for this field on the screen, we can enter more than 10 Characters, i.e., till the end of the screen and we can enter even in the next line. To prevent this, we use Skipper field or stopper field. A Skipper field would generally be an Unnamed field of length 1, specified after a named field. The following diagram and the table explain the significance of each bit.

    We will be discussing about MAPS in the upcoming modules. It is used for debugging the program step by step, which helps in finding the errors. The terminal is in EDF mode message will be displayed. Now type the transaction id and press the enter key. After initiation, with each enter key, a line is executed. Before executing any CICS command, it shows the screen in which we can modify the values before proceeding further. It is used to find the explanation and reasons for CICS Abend Codes. It is used to Sign Off from the CICS region. It is used to display contents of a temporary storage queue or TSQ. We will discuss more about TSQ in the upcoming modules. The task may be sharing the same program or using different programs. The CICS schedules the task in its own region. For multi-threading to be possible, an application program should be a re-entrant program under the operating system or a quasi-reentrant under the CICS. CICS ensures re-entrancy by acquiring a unique storage area for each task. Between CICS commands, the CICS has the exclusive right to use the CPU resources and it can execute other CICS commands of other tasks. For example, let’s suppose 50 users are using a program A. Here the CICS will provide 50 working storage for that program but one Procedure Division. And this technique is known as quasi-reentrancy. We will be discussing about writing a simple COBOL-CICS program, compiling it, and then executing it. This program is to demonstrate the steps involved in executing a COBOL-CICS program.Transaction-id is provided by the Administrator.It translates them into equivalent COBOL statements. It compiles the code after checking the source code for syntax errors. We use BMS to create screen designs with proper positions and attributes.This input is then sent to the CICS program for further processing. When the whole map is defined, we can use JCL to assemble it. It can have names containing 1 to 7 chars. It should have a PPT entry.

    Resources are released as soon as the program is suspended temporarily. The next transaction starts when the user presses an AID key. CICS can detect only AID keys. After typing all the input, only when the user presses one of the AID keys, the CICS takes control. AID Keys include ENTER, PF1 to PF24, PA1 to PA3, and CLEAR. It is provided by CICS. Most file accesses are random in online system as the transactions to be processed are not batched and sorted into any kind of order. It also allows us to access data using database managers. Errors can arise due to both hardware of software issues. We will be discussing about errors and error handling in this module. Mapfail is a similar error. Errors in this category are handled by explicit logic in the program. The first program which receives the control directly is at highest logical level, i.e., Level 1. The Linked program is at the next logical level from the linking program. The XCTL programs run at the same level. It will be clear when we will go through Link and XCTL, later in this module.COMMAREA is an optional parameter and is the name of the area containing the data to be passed or the area to which results are to be returned. It expects the control back. A Linked program cannot be pseudo-conversational. We then move this value to the working storage variable inside the program.DATESEP indicates the separator for the DATE as does the TIMESEP variable for TIME.There are five storage areas which are provided by CICS, which we will be discussing in this module. It should be defined in the LINKAGE SECTION using DFHCOMMAREA name. There is only one CWA in the entire CICS region. TWA exists only for the duration of transaction. Its size is defined in the Program Control Table. Also, we can create a new TSQ using this command.If the record starts a new queue, the item number assigned is 1 and subsequent item numbers follow on sequentially. Default is AUXILIARY. It allows only sequential access.

    It specifies whether the value is to be transferred to the system or not. It is used to send the map to the terminal from the application program.It is mandatory. The mapset name is needed unless it is the same as the map name. We use it to modify the variable data in a display that has already been created. Only the data from your program is sent to the screen. The constants in the map are not sent. Cursor can be set by moving -1 to the L part of the field and then sending the map. The MAP and MAPSET parameters have exactly the same meaning as for the SEND MAP command.EIB (Execute Interface Block) acts as an interface to allow application programs communicate with the CICS. EIB contains the information required during the execution of a program. If we code these COBOL verbs, it will not give any compilation error, but we may get unpredictable results.It contains a set of system related information corresponding to the task. All the necessary inputs are provided when the program is started. So in CICS, they are rarely developed. An online application achieves a conversation between the user and the application program by a pair of SEND and RECEIVE command.This time is considerably high, which is a major drawback of Conversational programs. To overcome this problem, pseudo-conversion programming came into the picture. We will now discuss more about pseudo-conversion programs. When the input is received, it is processed and the output is displayed. We will discuss about the techniques for passing data. COMMAREA is used to pass data between tasks.The programs can exist in the same transaction or in different transaction also. At this stage, the data needs to be saved, because though the task has ended, the transaction has not. When this transaction is to be resumed, it would require the prior status of the task. User enters the input. This now has to be received by the RECEIVE MAP command and then validated.

    With an intuitive rule-building interface, MainView AutoOPERATOR for CICS lets you to create powerful automation without the need for REXX coding. Replacing repetitive, error-prone manual interventions with automated ones will help you avoid costly performance interruptions. BMC, the BMC logo, and other BMC marks are assets of BMC Software, Inc. These trademarks are registered and may be registered in the U.S. and in other countries. CVDAs recognized by the translator.The name can be up to 32 characters long.WAIT is the default.In some extreme cases, for example, if an error occurs during When you issue a SET FILE DISPOSITION command, you override the current It is supported only for compatibility reasons. These services can be more efficient than the generalized operating system services and also simpler for programmers to use, particularly with respect to communication with diverse terminal devices.CICS manages the entire transaction such that if for any reason a part of the transaction fails all recoverable changes can be backed out.Other, smaller enterprises can also run CICS TS and other CICS family products. CICS can regularly be found behind the scenes in, for example, bank-teller applications, ATM systems, industrial production control systems, insurance applications, and many other types of interactive applications.In earlier, recent CICS TS releases, support was provided for Web services and Java, event processing, Atom feeds, and RESTful interfaces. This latest release reinforced the reputation of CICS TS as IBM's premium mixed language application server. An 'MTCS-CICS bridge' was later developed to allow these transactions to execute under CICS with no change to the original application programs.The first CICS product was announced in 1968, named Public Utility Customer Information Control System, or PU-CICS.

    It became clear immediately that it had applicability to many other industries, so the Public Utility prefix was dropped with the introduction of the first release of the CICS Program Product on July 8, 1969, not long after IMS database management system. Customer pressure kept it alive, however. The core of the development work continues in Hursley today alongside contributions from labs in India, China, Russia, Australia and United States.The 1964 IBM 2260 and 1972 IBM 3270 video display terminals were widely used later. Corporations like Standard Oil of Indiana (Amoco) made major contributions to CICS. IBM executives incorrectly felt that the future would be like the past with batch processing using traditional punch cards.It was then given back to IBM for free distribution to others.IBM executives did not recognize value in software as a revenue-generation product until after federal law required software unbundling. In 1980, IBM executives failed to heed Ben Riggins' strong suggestions that IBM should provide their own EBCDIC -based operating system and integrated-circuit microprocessor chip for use in the IBM Personal Computer as a CICS intelligent terminal (instead of the incompatible Intel chip, and immature ASCII -based Microsoft 1980 DOS ).This process allowed each customer to exclude support from CICS itself for any feature they did not intend to use, such as device support for terminal types not in use.CICS Web and Document APIs were enhanced in CICS TS V1.3 to enable web-aware applications to be written to interact more effectively with web browsers.These technologies relied on hosting Java applications in CICS. The Java hosting environment saw numerous improvements over many releases, ultimately resulting in the embedding of the WebSphere Liberty Profile into CICS Transaction Server V5.1. Numerous web facing technologies could be hosted in CICS using Java, this ultimately resulted in the removal of the native CORBA and EJB technologies.

    A CICSPlex is a set of interconnected CICS regions that own Terminals, Applications, Resources, etc. This can occur if there was a transmission error or if a message was sent to the gateway without having gone through the TMA TCP gateway gateway on the remote Tuxedo node.This message usually occurs when a service has timed out. Verify that you are not expecting a reply from a service that does not send one.For more information about configuring the CICS log, refer to the. Configuring and Administering Oracle TMA TCP for CICS section.This message usually occurs when a service has timed out. Verify that you are not expecting a reply from a service that does not send one.The Handler was unable to load the control programs OTPCICS01 or OTPCICS02.The Handler was unable to LINK to the specified user program.This would occur, for example, if the transaction for the Application Handler was given in the Inbound Service Information screen as the transaction to start a service with no reply.Connection closed by other side. This message will be displayed only when the AUTO ENABLE option is set to E.For system level problems, please notify your CICS administrator.Check that it is enabled.This could occur either during processing by the Pre-requester, before the request is sent, or because the Pre-requester did not receive a response in time.See the list of valid options in the message.See OptionsThe STATUS on the record is 'D' and you entered a 'D'. The STATUS on the record is 'A' and you entered a 'A'.Check the file status via CEMT.Check the Mapset status via CEMT.Check the Program status via CEMT. Both IBM VS COBOL II batch processing andA file status ofIn this case, theIn some cases,If the requesting program was. This status code was adoptedBoth IBM VS COBOL II batch processing andThis status is also returnedAll dumps are suppressed unless the abend codeSee the MVS console log for additionalSee the VTAM messages and codes manualSub-name is theThe MFA process id is terminated.

    The MFA process id isThe subsystem name maySee msg 131ISee msg 130E. Issue the FCheck the MVS console logProcessing continues with no logging. XxxxCheck the DDNAME in. Check the MVS console log for theContact MERANT support. Xxxx represents the programThe registration table shouldThe FSTAB should be recompiledThis is locatedThis matches the entry in theThis may be due to a NETSTAT DROP command. You will need toThis informationProcessing will continue, howeverShut one down. Refer to those product's documentation for aUnable to convert the IMS database. Unable to convert the XDBThis is most likely a router configurationEither use the right-mouseYou need to use theUnable to convert the IMS database. The test programs used an extensiveIf the dataset does exist but is empty, aThe current recordThe current recordThis document and the proprietary marks and names. As a result, digital workloads are more taxing than ever. MainView for CICS Management is a business-ready performance management solution. With this solution, you’ll be able to: The monitors showed us the breaking points and provided the data we needed to accurately calculate how much processing power we would need to handle peak loads at acceptable performance levels.” Thanks to tightly integrated components, the product makes troubleshooting problems quick and easy. With its support for the CICS Transaction Gateway, ability to auto-connect to CICS regions, and simplified monitoring of CICS resources in MRO environments, MainView for CICS lets you manage your entire CICS environment from a single point of control. In addition, the product provides an at-a-glance overview of transactions running in a CICSPlex or a single CICS region, and shows how each transaction is using CICS resources. The product can automatically take recovery or notification actions when any MainView monitor product raises an alarm.

    These twin technologies enabled easier integration of CICS components with other Enterprise applications, and saw widespread adoption. Tools were included for taking traditional CICS programs written in languages such as COBOL, and converting them into WSDL defined Web Services, with little or no program changes. This technology saw regular enhancements over successive releases of CICS.This allowed early adopters to provide constructive feedback that could influence the final design of the integrated technology. Examples include the Soap for CICS technology preview SupportPac for TS V2.2, or the ATOM SupportPac for TS V3.1. This approach was used to introduce JSON support for CICS TS V4.2, a technology that went on to be integrated into CICS TS V5.2.Popular examples include using the CICS Transaction Gateway for connecting to CICS from JCA compliant Java application servers, and IBM DataPower appliances for filtering web traffic before it reaches CICS.CICS assets can be accessed from remote systems, and can access remote systems; user identity and transactional context can be propagated; RESTful APIs can be composed and managed; devices, users and servers can interact with CICS using standards based technologies; and the IBM WebSphere Liberty environment in CICS promotes the rapid adoption of new technologies.TXSeries is distributed transaction processing middleware.This includes performance management as well as deployment and management of CICS resources.A software coding error in one application could block all users from the system.A common technique was to limit the size of individual programs to no more than 4,096 bytes, or 4K, so that CICS could easily reuse the memory occupied by any program not currently in use for another program or other application storage needs. When critical path code was identified, a code snippet was passed around from one analyst to another.

    Each person had to either (a) reduce the number of bytes of code required, or (b) reduce the number of CPU cycles required. Younger analysts learned from what more-experienced mentors did. Eventually, when no one could do (a) or (b), the code was considered optimized, and they moved on to other snippets. Small shops with only one analyst learned CICS optimization very slowly (or not at all).Program corruption and CICS control block corruption was a frequent cause of system downtime. A software error in one application program could overwrite the memory (code or data) of one or all currently running application transactions. Locating the offending application code for complex transient timing errors could be a very-difficult operating-system analyst problem.They were addressed in TS V3.3, V4.1 and V5.2 with the Storage Protection, Transaction Isolation and Subspace features respectively, which utilize operating system hardware features to protect the application code and the data within the same address space even though the applications were not written to be separated. CICS application transactions remain mission-critical for many public utility companies, large banks and other multibillion-dollar financial institutions.Because of the initial assembler orientation, requests for CICS services were made using assembler language macros.The COBOL Linkage Section was normally used for inter-program communication, such as parameter passing. The compiler generates a list of addresses, each called a Base Locator for Linkage (BLL) which were set on entry to the called program. The first BLL corresponds to the first item in the Linkage Section and so on. CICS allows the programmer to access and manipulate these by passing the address of the list as the first argument to the program.This is pre-processed by a pre-compile batch translation stage, which converts the embedded commands (EXECs) into call statements to a stub subroutine.

    So, preparing application programs for later execution still required two stages.However, IBM also dropped support for Macro-level application programs written for earlier versions. This meant that many application programs had to be converted or completely rewritten to use Command-level EXEC commands only.Rewriting them often introduced new bugs without necessarily adding new features. There were a significant number of users who ran CICS V2 application-owning regions (AORs) to continue to run macro code for many years after the change to V3.CICS Transaction Server Version 2.2 supported the Software Developers Toolkit. CICS provides the same run-time container as IBM's WebSphere product family so EJB applications are portable between CICS and Websphere and there is common tooling for the development and deployment of EJB applications. These include WSDL, SOAP and JSON interfaces that wrap legacy code so that a web or mobile application can obtain and update the core business objects without requiring a major rewrite of the back-end functions.Usually, the majority of transactions are relatively simple tasks such as requesting an inventory list or entering a debit or credit to an account. A primary characteristic of a transaction is that it should be atomic. On IBM System z servers, CICS easily supports thousands of transactions per second, making it a mainstay of enterprise computing.CICS screens are usually sent as a construct called a map, a module created with Basic Mapping Support (BMS) assembler macros or third-party tools. An example of how a map can be sent through COBOL is given below. The end user inputs data, which is made accessible to the program by receiving a map from CICS.Whether a batch job or a started task, CICS regions may run for days, weeks, or even months before shutting down for maintenance (MVS or CICS). Cold starts of large CICS regions with many resources can take a long time as all the definitions are re-processed.

    This allows ACID updates of multiple datastores by cooperating distributed applications. In practice there are issues with this if a system or communications failure occurs because the transaction disposition (backout or commit) may be in-doubt if one of the communicating nodes has not recovered. Thus the use of these facilities has never been very widespread.The cost of scaling the mainframe-unique ECL was much higher than CMOS which was being developed by a keiretsu with high-volume use cases such as Sony PlayStation to reduce the unit cost of each generation's CPUs. But the air-cooled CMOS technology's CPU speed initially was much slower than the ECL (notably the boxes available from the mainframe-clone makers Amdahl and Hitachi ). This was especially concerning to IBM in the CICS context as almost all the largest mainframe customers were running CICS and for many of them it was the primary mainframe workload. Without this, these customers would tend to move to the competitors rather than Sysplex as they scaled up the CICS workloads.This preserved compatibility for legacy applications at the expense of operational complexity to configure and manage many CICS regions. The CF provides a mapped view of resources including a shared timebase, buffer pools, locks and counters with hardware messaging assists that made sharing resources across the Sysplex both more efficient than polling and reliable (utilizing a semi-synchronized backup CF for use in case of failure).If one wishes these resources to be recoverable then special options must be specified in relevant CICS definitions:CICS services handle this automatically.The new structure was more modular and so resilient because it was easier to change without impact. For example, Program Control Domain (DFHPC) or Transient Data Domain (DFHTD).December 1972. GH20-1028-3. Retrieved 2016-04-01. CICS DDM is no longer available in CICS TS from Version 5.2 onwards. Retrieved Jan 4, 2016.

    Archived from the original on 2013-01-03. Retrieved December 12, 2010. Retrieved 2012-11-24. Scroll right within the frame to see its content.) at the Wayback Machine (archived February 5, 2005) By using this site, you agree to the Terms of Use and Privacy Policy. It includes a PLT program that initiates at CICS startup, and the code module program that captures various events and forwards them to the zDC. The CEDA definition is in SZDTSAMP member CICRDO. You can find it in the example in the next section. A copy of these definitions can be found in SZDTSAMP member CICRDO, which is provided for use with the batch RDO utility DFHCSDUP. Coordinate the group name and group list name with your CICS administrator. Replace XYZLIST with the name of your group list ( GRPLIST ). For example: Accepted values are, Add a stanza that invokes the supplied ZDTSOAPH header program. Outbound SOAP requests that occur within CICS transactions that aren't traced are ignored, however tracing isn't limited to requests from SOAP programs that act as CICS SOAP service providers. All UPPER-CASE implies YELLING!It's self-explanatory.They might be okay, but they might cause a response code 12. Change the variable to 8 bytes and move on to a REAL problem, not one you caused yourself. The completion code ( CompCode )Data-conversion exits can return reason codes inData-conversion exits can return reason codes inA thread canThe applicationFor example,For the mqAddString and mqSetString This reasonThe parameter pointer is notAny space at the end of the stringThis can occur because theIf the call is an MQGET call. All connection andEither the parameterFor example,Stored Procedures wishing to use the MQ. RRS adapter must run in a DB2 WLM-managed Stored Procedure address space.CSQBRSTB. This adapter does not support the MQCMIT and MQBACK calls.This reason code also occurs if theAlternatively, link the application with the RRS batch adapter CSQBRRSI.


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