A fix is available
APAR status
Closed as program error.
Error description
Your CPSM CMAS is under stress and goes Short On Storage. During that SOS episode, If CPSM needs to extend the Link Buffer Pool and can not do so due to the SOS situation, a flood of EYUCL0117E messages may occur until the SOS condition is relieved. . Additional Keywords and Symptoms DFHSM0133 EYUCL0117E Insufficient ECDSA SMSHRC31 KIXREVNDB
Local fix
Take an SVC dump of the CMAS, ESSS, ESSS Dataspaces, and then cycle the CMAS.
Problem summary
**************************************************************** * USERS AFFECTED: All CICSPlex SM V4R1M0 and V4R2M0 Users * **************************************************************** * PROBLEM DESCRIPTION: Your CPSM CMAS is under stress and * * goes Short On Storage. During that * * SOS episode, if CPSM needs to expand * * the Link Buffer Pool and can not do so * * because of the SOS situation, message * * . * * EYUCL0117E Insufficient ECDSA * * storage to expand link buffer * * pool * * . * * might be issued repeatedly, flooding * * the system console until the SOS con- * * dition is relieved. * **************************************************************** * RECOMMENDATION: After applying the PTF that resolves this * * APAR, all CMASes must be recycled to pick * * up the new code. Note that the restarts * * do not need to be done at the same time. * **************************************************************** When an indirect connection exists between two CMASes by way of a third, intermediate, CMAS, and one of the endpoint CMASes is unable to receive communications for a period of time, messages from the other endpoint are queued in the inter- mediate CMAS until they can be delivered. This might cause a communications buffer shortage in the intermediate CMAS which is normally resolved by GETMAINing a block of CICS storage to expand the buffer pool. If CICS is not able to service the GETMAIN because a Short On Storage condition exists, message EYUCL0117E is issued. If the Short On Storage condition is not resolved, the CMAS joblog and system console might receive a flood of messages.
Problem conclusion
Modules EYU0CLBE (CLBE) and EYU0CLBL (CLBL), called to expand the COM Link Buffer Pool, were modified to set a flag in the COM Major Object Environment Block (MOEB) when message EYUCL0117E is issued, and to test the flag to insure that the message will not be sent if it has been sent previously. A counter was added to the LPROT segment of the COM MOEB to track the number of times a buffer pool expand request failed. Module EYU0CSGT (CSGT - COM Garbage Collection Long Running Task) was modified to clear the flag when a Short On Storage condition is relieved. The net effect of these changes is to cause message EYUCL0117E to be issued only once for each occurrence of a Short On Storage con- dition in the CMAS. CLBE and CLBL will also request a CPSM dump the first time that message EYUCL0117E is issued during each execution of a CMAS. The dump title will begin "EYU0XZPT Dump".
Temporary fix
FIX AVAILABLE BY PTF ONLY
Comments
APAR Information
APAR number
PM44114
Reported component name
CICS TS Z/OS V4
Reported component ID
5655S9700
Reported release
60M
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
YesSpecatt / CST
Submitted date
2011-07-20
Closed date
2011-09-08
Last modified date
2011-10-11
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UK71736 UK71737
Modules/Macros
EYURCOEB EYU0CLBE EYU0CLBL EYU0CSGT
Fix information
Fixed component name
CICS TS Z/OS V4
Fixed component ID
5655S9700
Applicable component levels
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:
11 October 2011