Disconnection from DBCTL
This table shows some examples of CICS® trace entries produced at disconnection from DBCTL.
1 1CICS/ESA - AUXILIARY TRACE FROM 07/20/95 - APPLID CICSKPG1 - TIME OF FIRST ENTRY ON THIS PAGE 11:26:58.7144860002
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00047 1 AP 00E1 EIP ENTRY START 0004,07301464 ....,08001008 ....
3 00047 1 XM 0401 XMLD ENTRY LOCATE_AND_LOCK_TRANDEF CDBT
00047 1 DD 0301 DDLO ENTRY LOCATE 06D00040,07301820,TXD,CDBT
00047 1 DD 0302 DDLO EXIT LOCATE/OK 06D86C10 , D7000000
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4 00047 1 DU 0500 DUDT ENTRY INQUIRE_SYSTEM_DUMPCODE DB8211
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5 00047 1 DU 0500 DUDT ENTRY INQUIRE_SYSTEM_DUMPCODE DB8294
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6 00048 1 PG 0901 PGPG ENTRY INITIAL_LINK DFHDBDSC
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7 00048 1 AP 00E1 EIP ENTRY ADDRESS 0004,0005B010 ....,08000202 ....
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8 00048 1 PG 0A01 PGLU ENTRY LINK_URM DFHDBUEX,0005B0C4 , 0000000B,NO
00048 1 DD 0301 DDLO ENTRY LOCATE 06D08F80,0005B3A4,PPT,DFHDBUEX
00048 1 DD 0302 DDLO EXIT LOCATE/OK D7D7E3C5 , 06D89A50
00048 1 LD 0001 LDLD ENTRY ACQUIRE_PROGRAM 0732B450
00048 1 LD 0002 LDLD EXIT ACQUIRE_PROGRAM/OK 86D5B028,06D5B000,3A8,0,REUSABLE,ECDSA,OLD_COPY
9 00048 1 AP 1940 APLI ENTRY START_PROGRAM DFHDBUEX,NOCEDF,FULLAPI,URM,NO,07309828,0005B0C4 , 0000000B,2
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00048 1 AP 0065 USER EVENT APPLICATION-PROGRAM-ENTRY DISCONN DBCTL HAS JUST BEEN DISCONNECTED
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10 00048 1 LD 0001 LDLD ENTRY RELEASE_PROGRAM 0732B450,86D5B028
00048 1 LD 0002 LDLD EXIT RELEASE_PROGRAM/OK 06D5B000,3A8,ECDSA
00048 1 PG 0A02 PGLU EXIT LINK_URM/OK
00048 1 AP 2520 ERM ENTRY APPLICATION-CALL-TO-TRUE(DBCTL )
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00048 1 AP 2522 ERM EVENT PASSING-CONTROL-TO-TRUE(DBCTL )
00048 1 AP 0310 DBAT ENTRY APPLICATION REQUEST
11 00048 1 AP 0315 DBAT EVENT ABOUT-TO-INVOKE-DRA FOR INTERFACE REQUEST , 0400
12 00048 1 AP 0304 DBSPX EVENT ABOUT-TO-ISSUE-WAIT FOR DISCONNECTION REQUEST
00048 1 DS 0004 DSSR ENTRY WAIT_MVS DLSUSPND,DBCTL,0005B444,NO,OTHER_PRODUCT
00048 1 DS 0005 DSSR EXIT WAIT_MVS/OK
00048 1 AP 0305 DBSPX EVENT POSTED FOR DISCONNECTION REQUEST
13 00048 1 AP 0316 DBAT EVENT RECEIVES-CONTROL-FROM-DRA FOR INTERFACE REQUEST , 00000000
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14 00048 1 ST 0003 STST ENTRY RECORD_STATISTICS 072F7618 , 00000054,USS
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00048 1 ST 0004 STST EXIT RECORD_STATISTICS/OK
00048 1 AP 0313 DBAT EXIT DBAT-RESPONSE-CODE (00000000)
00048 1 AP 2523 ERM EVENT REGAINING-CONTROL-FROM-TRUE(DBCTL )
00048 1 AP 2521 ERM EXIT APPLICATION-CALL-TO-TRUE(DBCTL )
15 00048 1 GC 2010 CCCC ENTRY WRITE 0005B0BC , 00000008,DBCTL,STATUS
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00048 1 DS 0004 DSSR ENTRY WAIT_MVS ASYNRESP,CCVSAMWT,06C8D5C0,NO,IO
00038 1 DS 0005 DSSR EXIT WAIT_MVS/OK
17 00038 1 AP 0306 DBCT *EXC* EVENT POSTED FOR DFHDBCT SHOULD TERMINATE
00038 1 AP 00E1 EIP ENTRY START 0004,001087C4 ..gD,08001008 ....
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00038 1 XM 0401 XMLD ENTRY LOCATE_AND_LOCK_TRANDEF CDBD
00038 1 DD 0301 DDLO ENTRY LOCATE 06D00040,0730C078,TXD,CDBD
00038 1 DD 0302 DDLO EXIT LOCATE/OK 06D86918 , D7000000
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00038 1 AP 00F3 ICP ENTRY INITIATE CDBD 4003,0000000C ....,00000000 ....,CDBD
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18 00049 1 LD 0001 LDLD ENTRY RELEASE_PROGRAM DFHDBSSX,8711A910
00049 1 LD 0002 LDLD EXIT RELEASE_PROGRAM/OK
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00049 1 ME 0502 MEIN EXIT INQUIRE_MESSAGE_DATA/OK 06BB5D7C,06BC56B8,06BC56CE,06BC5710,,I,100011,20071995,M,CIA1,CICSKPG1
19 00049 1 DU 0500 DUDT ENTRY INQUIRE_SYSTEM_DUMPCODE DB8102Note:
- Timestamp, as mentioned in Connection to DBCTL.
- Phase 1 of disconnection begins at this stage.
- The CICS-DBCTL interface disconnection transaction, CDBT, is attached.
- Message DFHDB8211 is issued to confirm that orderly disconnection is proceeding. This message is issued in response to the user pressing PF5 on the CDBC screen. (For an immediate disconnection, message DFHDB8212 is issued.)
- Message DFHDB8294 is issued confirming that orderly disconnection is in progress. (If immediate disconnection had been requested, message DFHDB8295 would have been issued.)
- CDBT invokes CICS-DBCTL interface disconnection program, DFHDBDSC. A wait is entered (task number changes, from 00034 to 00035).
- The EXEC interface program, DFHEIP, links to the CICS-DBCTL user-replaceable program, DFHDBUEX.
- DFHDBUEX is loaded.
- Trace entries at this point depend on what, if anything, you have coded in your own version of DFHDBUEX. (See DFHDBUEX.) In this example, DFHDBUEX has been coded to issue a trace entry stating that DBCTL has just been disconnected.
- DFHDBUEX is released and control is passed back to DFHDBDSC.
- The DRA is invoked for an interface request. (PAPL request type
0400 indicates the request is a DISCONNECT. See PAPL request and return codes.)
If there is DL/I activity at the time of the disconnect, and the disconnect is orderly (not immediate) DFHDBAT links to DFHDBSPX (the CICS-DBCTL suspend exit) to wait for all DL/I activity to complete. In this example, there was no DL/I activity at the time the disconnect was issued.
- The DRA links to DFHDBSPX to cause the CICS task to wait while the DRA processes the disconnect request.
- DBCTL return code (00000000). (See Return codes in DBCTL.)
- Statistics for this session are recorded. (See DBCTL statistics.)
- DFHDBDSC writes a record to the CICS global catalog, to indicate that CICS is no longer connected to DBCTL.
- Phase 2 of disconnection begins.
- DFHDBDI’s associated transaction, CDBD, runs and disables DFHDBAT to make it unavailable. (The transaction number changes from 00035 to 00032.)
- Programs loaded at startup are disabled. This example shows DFHDBSPX. A complete trace should also include similar entries for other programs loaded at startup, as listed in Connection to DBCTL.
- Message DFHDB8102 is issued confirming that disconnection from DBCTL is complete.