A fix is available
APAR status
Closed as program error.
Error description
BAS resource creation fails intermittently in one or more MASes during a mass recycle of CICS regions. The CMAS EYULOG indicates a MAS with the same MASNAME has just terminated for a different CICSplex at the same time as a MAS with the same name is initializing. If the system activity is very high, the startup may be delayed long enough where the CMAS LEEI task is processing an EENDDISC event for a MASNAME in one CICSplex while another MAS is starting in another CICSplex using the same MASNAME. The CMAS CLET method invokes the CTDM method to cleanup any outstanding MASRL entries for the terminating MASNAME. If another MAS is initializing at the same time and has an outstanding MAL on the MASRL list, CTDM will call the CTRC method to clean it up. In this instance, the BAS BNCC method to create resources is still running in the starting MAS and is cleaned up prematurely resulting in the following messages in the MAS: . EYUBN0098E applid Resource creation failed EYUNL0901I applid LMAS LRT NORMAL termination initiated EYUBN0099I applid Resource creation processing complete EYUNL0999I applid LMAS LRT termination complete EYUXL0011I applid LMAS shutdown in progress EYUCL0005I applid ESSS Receive Link Task terminated EYUCL0007I applid masname link to cmasname terminated EYUXM0004I applid Message Services termination complete EYUXL0023I applid Trace Services termination requested EYUXZ0001I applid Trace Services termination complete . The following messages will show up in the CMAS EYULOG: . EYUCL0009I cmasname ESSS ICT entered for Detach from masname EYUTS0021E cmasname Topology Connect of CICS System masname failed due to a MAS Resource Installation Time-Out. EYUTS0002E cmasname Topology Connect for masname Failed APPLID(applid ) CICSplex(cicsplex) . Additional Symptom(s) Search Keyword(s): sysidnt duplicate COIE ASP7 create install KIXREVPAD
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All CICSPlex SM V3R2M0 Users * **************************************************************** * PROBLEM DESCRIPTION: Unpredictable errors may occur when two * * MASes that are part of separate * * CICSplexes but have the same MAS name * * are connected to the same CMAS. * * * * If errors occur, they will occur when * * one MAS terminates while the other is * * active. * * * * Generally, the types of errors that * * will occur result from the premature * * time out of requests sent to the active * * MAS. * **************************************************************** * 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 MAS terminates, method EYU0CTDM (CTDM) runs in the CMAS to timeout all requests that were sent to the MAS from the CMAS but have not yet completed processing. To do this, CTDM searches the MASRL list, which is a list of all outstanding requests sent to MASes connected to the CMAS, timing out all entries in the list that contain the name of the terminating MAS. Since the MASRL list only contains the MAS name, and since two MASes that reside in separate CICSplexes can have the same name, it may be possible for CTDM to timeout a request invalidly.
Problem conclusion
Since a MAS name is unique within a CICSplex, the MASRL list has been updated to include the CICSplex name that the MAS is part of. CTDM will now only timeout those MASRL entries that match both the MAS name and CICSplex name.
Temporary fix
FIX AVAILABLE BY PTF ONLY
Comments
APAR Information
APAR number
PK80493
Reported component name
CICSTS V3 Z/OS
Reported component ID
5655M1500
Reported release
50M
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2009-02-12
Closed date
2009-08-13
Last modified date
2009-09-02
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UK49193
Modules/Macros
EYUQCTDM EYURCMRL EYURCTDM EYUTRCOM EYUYCTDM EYUZCTDM EYU0CLET EYU0CSLT EYU0CTBP EYU0CTDM EYU0CTIN EYU9CMRU EYU9CMR3 EYU9CMR4 EYU9CMR5
Fix information
Fixed component name
CICSTS V3 Z/OS
Fixed component ID
5655M1500
Applicable component levels
R50M PSY UK49193
UP09/08/18 P F908
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:
02 September 2009