Combine filter, feed and job exits - connect_cdc_sqdata - Latest

Complex environments that include both BMP and DL/I Batch processing may require the use of both the Filter, Feed and Job Exits. For example, one IMS application may use DL/I Batch processing in its schedule, requiring the interruption of on-line processing. All other IMS applications may use only concurrent MPP and BMP processing and thus not require a "batch schedule" in the traditional sense.

This use case will make use of two IMS Log Reader Captures and Publishers, one pair for the mixed mode application and another for all other IMS applications.

Both the Filter Exit and the JOB Exit in the distribution SAMPLIB will support this mode of operation without modification using only the additional Exit DD statements in two different IMS Log Reader and zLOG Publisher Jobs or Started Tasks:

Example:

1. An IMS Log Reader Capture started task IMSCDCA will capture all IMS application processes (MPP and BMP) except for those from the mixed mode application BBB, whose IMS DBD's begin with the letters DBBA and DBBB and DBBC. This will be accomplished by simply adding the Filter Exit DD statements and parameters to the Started Task JCL:

   //UFXIN DD * Filter exit input
   DEFAULT=INCLUDE
   * Add a DB statement for each applicable database to be excluded.
   DB=DBBAnnnn,EXCLUDE
   DB=DBBBnnnn,EXCLUDE
   DB=DBBCnnnn,EXCLUDE
   /*
   //UFXOUT DD SYSOUT=*

   The data captured by IMSCDCA will be published downstream by a single Publisher, IMSPUBA to all Engines subscribing to data from all applications other than the mixed mode application BBB.

2. A second IMS Log Reader Capture started task IMSCDCB will capture only the databases used by application BBB using the Filter Exit. It will also accommodate the DL/I Batch processing in application BBB using the Feed and Job Exits, ensuring that changes made by DL/I Batch jobs from only mixed mode application BBB DL/I Batch Jobs whose names begin with the Letters JBBA, JBBB and JBBC.
   The IMSCDCB Log Capture configuration CAB file will be configured for both Filter, Feed and Job Exit processing. Add the Feed LogStream, Filter and Job Exit modules:

   sqdconf modify IMSCDCB.cab
   -\-add-feed=sqdata_batch_feed_log_stream
   -\-filter-exit=IMSCUFX
   -\-job-exit=IMSCUJX

   The Filter and Job Exits will also require adding their respective DD statements to the IMSCDCB Started Task JCL:

   //UFXIN DD * Filter exit input
   DEFAULT=EXCLUDE
   * Add a DB statement for each applicable database to be excluded.
   DB=DBBAnnnn,INCLUDE
   DB=DBBBnnnn,INCLUDE
   DB=DBBCnnnn,INCLUDE
   /*
   //UFXOUT DD SYSOUT=*
   //*
   //UJXIN DD * Job exit input
   DEFAULT=EXCLUDE
   JBBA*,INCLUDE
   JBBB*,INCLUDE
   JBBC*,INCLUDE
   /*
   //UJXOUT DD SYSOUT=*