Under exceptional circumstances, Windows® MiniDumps, UNIX® core dumps, or z/OS® SVC or core dumps might be produced.
For example, if errors occur in the broker, Configuration Manager, or User Name Server executable files, or in the infrastructure main program. The amount and complexity of data produced in these cases normally requires the assistance of your IBM Support Center.
Windows MiniDumps might be produced by broker processes in extreme cases. They are never produced during normal operation.
They are accompanied by a BIP2111 error message (message broker internal error) that contains the path to the MiniDump file in your workpath/errors directory. MiniDump files have the extension .dmp. You can analyze these MiniDumps using a suitable debugger; contact IBM for assistance.
UNIX core dumps are produced by broker processes in extreme cases. They are never produced during normal operation.
A BIP2060 error message (execution group terminated unexpectedly) might be produced. Look in the directory where the broker was started to find the core dump file. If this directory is not writable by the service ID, the core dumps are produced in the service user ID's home directory.
You can analyze these core dumps using a suitable debugger; contact IBM for assistance.
A broker, Configuration Manager, or User Name Server, produces an SVC dump that is written to a dataset named using the system defined naming convention.
The format of this dataset name can be displayed using the dump options command /D dump.
DUMP.&SYSNAME..&JOBNAME..D&DATE..T<IME..S&SEQand, for example, this format displays a resolved name of:
DUMP.MVS1.MQ83BRK.D080924.T171755.S00005
An SVC dump that is caused by z/OS or WebSphere Message Broker for z/OS is written to the system's dump directory, and can be formatted with IPCS. The name of the dump is listed on the z/OS syslog.
IEA794I SVC DUMP HAS CAPTURED: DUMPID=006 REQUESTED BY JOB (MQ83BRK ) DUMP TITLE=MQ83BRK ,ABN=S0C4-00000004,C=M7500.600.BRKR IEA611I COMPLETE DUMP ON DUMP.MVS1.MQ83BRK.D080924.T171851.S00006 DUMPID=006 REQUESTED BY JOB (MQ83BRK ) FOR ASID (00B8) INCIDENT TOKEN: PLEXS MVS1 09/24/2008 16:19:11 ID = MQ83BRK ,ABN=S0C4-00000004
Under some circumstances, SVC dumps are not produced. Generally, dumps are suppressed because of time or space problems, or security violations.
In addition, you can suppress SVC dumps that duplicate previous dumps using z/OS DAE, for example, use the command SET DAE=xx. (DAE is Dump Analysis and Elimination: a z/OS service that enables an installation to suppress SVC dumps and ABEND SYSDUMP dumps that are not needed because they duplicate previously written dumps.)
IEA995I SYMPTOM DUMP OUTPUT 504 SYSTEM COMPLETION CODE=0C4 REASON CODE=00000004 TIME=11.02.24 SEQ=02327 CPU=0000 ASID=0060 PSW AT TIME OF ERROR 078D2000 8D70A656 ILC 4 INTC 04 ACTIVE LOAD MODULE ADDRESS=0D708F68 OFFSET=000016EE NAME=SPECIALNAME 61939683 81936199 85A2F1F0 61A48689 */local/res10/ufi* A7F5F161 82899561 82899789 94818995 *x51/bin/bipimain* DATA AT PSW 0D70A650 - 91345000 00001F22 41209140 GPR 0-3 00000000 0D711B18 0D711B18 00000000 GPR 4-7 0D711300 0D70BD04 00000000 0D711B18 GPR 8-11 0D7121CF 0D7111D0 0D70C316 0D70B317 GPR 12-15 8D70A318 0D7111D0 00000312 00000000 END OF SYMPTOM DUMP IEA838I SYSMDUMP SUPPRESSED AS A DUPLICATE OF: 505 ORIGINAL:DATE 01170 TIME 10:59:40:05 CPU 8A7645349672 MOD/#PATHNAM CSECT/BIPIP PIDS/5655G9700 AB/S00C4 REXN/IMBSIREC FI/9134500000001F2241209140 REGS/0C33E HRC1/00000004 SUB1/INFRASTRUCTURE#MAIN
The MVS Diagnosis: Tools and Service Aids manual provides details about using z/OS dump analysis and elimination (DAE).
In extreme cases, you might instead receive a core dump, which will be written to the started task user's directory. The maximum size of a core dump is defined through MAXCORESIZE in the BPXPRMxx parmlib member. The IBM-supplied default is 4 MB. To ensure completeness of a core dump of any WebSphere Message Broker for z/OS address space, change this to 2 GB. The started task user's directory must then have at least this size.
oget '/u/user_directory/coredump.pid' 'mvs_dataset_name.pid' bin
ABN=S2C1-0001xxxx Error opening a file system file
The file system component might be full or the broker user ID might not
have the correct permissions to access files or directories in the file system
component.