A fix is available
APAR status
Closed as program error.
Error description
The following message is issued repeatedly in the CMAS during startup: . EYUTS0063E applid Topology encountered an error processing a change to a CICS system group. . The stack for the abending task is: XLOP, TIST, TSLA, TSEC, XZPT and the trace shows an exception entry with debug test RecurGrp trace point ID 6. The exception occurs on function EXTPSGC. This error occurs as CMASes are starting up and receiving updates to the DREP that occurred while they were down.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All CICSPlex SM V4R1M0 Users * **************************************************************** * PROBLEM DESCRIPTION: A CMAS which is a non-maintenance point * * CMAS for at least one CICSplex may * * receive error message EYUTS0063E during * * startup when processing data repository * * updates from the maintenance point * * CMAS. The text of this message will be * * as follows: * * * * EYUTS0063E Topology encountered an * * error processing a change * * to a CICS system group. * * * * This may be followed by message * * EYUXZ0910I indicating that a dump was * * taken. The dump title displayed by the * * message will be similar to the * * following: * * * * EYU0XZPT Dump,<cmasjobn>,<cmasname>, * * <lpar>,CMAS,TIST,<tasknum>, * * TRAC,EYU0TSEC,<date>,<time> * **************************************************************** * RECOMMENDATION: After applying the PTF that resolves this * * APAR, all CMASes must be restarted. Note * * that the restarts do not need to occur at * * the same time. * **************************************************************** When a CMAS initializes, method EYU0TIML (TIML) is called to perform initialization for the Topology component. As part of this processing, TIML calls method EYU0TIPC (TIPC) to read all Topology records for each CICSplex from the data repository, and create data structures for them. If records are added after initialization, then after the record is written to the data repository, method EYU0XDCR (XDCR) will generate an event to the Topology long running task TIST, which will then cause the appropriate data structures to be built for the record. If a CMAS is the maintenance point for a CICSplex, then it is not possible for records to be added to the data repository for the CICSplex until the CMAS completes initialization. However, if a CMAS is a non-maintenance point CMAS, then it could receive updates for the data repository from the maintenance point CMAS while it is performing Topology initialization. When this occurs, it is possible for TIST to attempt to build data structures for records that have already been processed by TIPC, which can result in the errors described above.
Problem conclusion
A non-maintenance point CMAS receives data repository updates from the maintenance point CMAS through method EYU0XDRS (XDRS). On entry, XDRS acquires a lock exclusively to serialize processing of all XDRS executions. Method TIML has been updated to acquire this lock exclusively prior to calling TIPC, and to free if after TIPC completes processing. This will ensure that records processed by TIPC are not also processed by TIST.
Temporary fix
FIX AVAILABLE BY PTF ONLY
Comments
APAR Information
APAR number
PK91190
Reported component name
CICS TS Z/OS V4
Reported component ID
5655S9700
Reported release
60M
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2009-07-13
Closed date
2009-07-24
Last modified date
2009-08-03
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UK48629
Modules/Macros
EYUTXLPD EYU0TIML EYU0XDIN
Fix information
Fixed component name
CICS TS Z/OS V4
Fixed component ID
5655S9700
Applicable component levels
R60M PSY UK48629
UP09/07/28 P F907
Fix is available
Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.
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Document Information
Modified date:
03 August 2009