A fix is available
APAR status
Closed as program error.
Error description
If a non-MP (non-Maintenance Point) CMAS "CMASA" is removed from the plex while another CMAS "CMASB" is down, CMASB will eventually learn that CMASA is out of the plex, but not before it adds it in during initialization. Because of this behavior, there is a potential for thousands of EYUTS0012E messages to flood the system until all CMAS are back in-sync. . Additional Symptom(s) Search Keyword(s): KIXREVRJL
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All CICSPlex/SM V3R1M0 Users * **************************************************************** * PROBLEM DESCRIPTION: When a CMAS is removed from managing a * * CICSplex, the removed CMAS may issue * * message EYUTS0012E, similar to the * * following: * * * * EYUTS0012E CICSPlex <plexname> Not * * Found * * * * While some EYUTS0012E messages are * * normal during the remove process, it is * * abnormal for the messages to continue * * long after the remove process has * * completed. * * * * This may occur if a CMAS is removed * * from managing the CICSplex while * * another CMAS which manages the CICSplex * * is not active, and then the inactive * * CMAS joins the CMAS network. * **************************************************************** * 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, for each CICSplex it manages, it builds a CMAS for CICSplex Directory (CMCPDIR) record for each remote CMAS which also manages the CICSplex. When the local CMAS needs to send records related to a specific CICSplex, it uses the CMCPDIR records it built for the CICSplex to determine which CMASes to send the records to. Since the local CMAS builds these records before connecting to other CMASes, it may build a CMCPDIR record for a CMAS which has been removed from managing the CICSplex. When this occurs, it will send records to the removed CMAS, resulting in EYUTS0012E error messages being issued by the removed CMAS.
Problem conclusion
CMAS initialization has been updated so that a CMAS will not build a CMCPDIR record for a remote CMAS until both CMASes have joined the CMAS network and have exchanged network topology information.
Temporary fix
FIX AVAILABLE BY PTF ONLY
Comments
When a CMAS is removed from managing a CICSplex, the removed CMAS may issue message EYUTS0012E, similar to the following: EYUTS0012E CICSPlex <plexname> Not Found While some EYUTS0012E messages are normal during the remove process, it is abnormal for the messages to continue long after the remove process has completed. This may occur if a CMAS is removed from managing the CICSplex while another CMAS which manages the CICSplex is not active, and then the inactive CMAS joins the CMAS network. When a CMAS initializes, for each CICSplex it manages, it builds a CMAS for CICSplex Directory (CMCPDIR) record for each remote CMAS which also manages the CICSplex. When the local CMAS needs to send records related to a specific CICSplex, it uses the CMCPDIR records it built for the CICSplex to determine which CMASes to send the records to. Since the local CMAS builds these records before connecting to other CMASes, it may build a CMCPDIR record for a CMAS which has been removed from managing the CICSplex. When this occurs, it will send records to the removed CMAS, resulting in EYUTS0012E error messages being issued by the removed CMAS. CMAS initialization has been updated so that a CMAS will not build a CMCPDIR record for a remote CMAS until both CMASes have joined the CMAS network and have exchanged network topology information.
APAR Information
APAR number
PK69611
Reported component name
CPSM CICS 3.1
Reported component ID
5655M1501
Reported release
100
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2008-07-25
Closed date
2008-08-27
Last modified date
2008-09-02
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
PK69620 UK39322
Modules/Macros
EYU0CPIN
Fix information
Fixed component name
CPSM CICS 3.1
Fixed component ID
5655M1501
Applicable component levels
R100 PSY UK39322
UP08/08/29 P F808
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.
{"0":{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSGMGV","label":"CICS Transaction Server"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"3.1","Edition":"","Line of Business":{"code":"LOB35","label":"Mainframe SW"}},"389":{"Product":{"code":"SSGMGV","label":"CICS Transaction Server"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Line of Business":{"code":"LOB35","label":"Mainframe SW"}},"1":null,"2":null,"3":null,"4":null,"5":null,"6":null,"7":null,"8":null,"9":null,"10":null,"11":null,"12":null,"13":null,"14":null,"15":null,"16":null,"17":null,"18":null,"19":null,"20":null,"21":null,"22":null,"23":null,"24":null,"25":null,"26":null,"27":null,"28":null,"29":null,"30":null,"31":null,"32":null,"33":null,"34":null,"35":null,"36":null,"37":null,"38":null,"39":null,"40":null,"41":null,"42":null,"43":null,"44":null,"45":null,"46":null,"47":null,"48":null,"49":null,"50":null,"51":null,"52":null,"53":null,"54":null,"55":null,"56":null,"57":null,"58":null,"59":null,"60":null,"61":null,"62":null,"63":null,"64":null,"65":null,"66":null,"67":null,"68":null,"69":null,"70":null,"71":null,"72":null,"73":null,"74":null,"75":null,"76":null,"77":null,"78":null,"79":null,"80":null,"81":null,"82":null,"83":null,"84":null,"85":null,"86":null,"87":null,"88":null,"89":null,"90":null,"91":null,"92":null,"93":null,"94":null,"95":null,"96":null,"97":null,"98":null,"99":null,"100":null,"101":null,"102":null,"103":null,"104":null,"105":null,"106":null,"107":null,"108":null,"109":null,"110":null,"111":null,"112":null,"113":null,"114":null,"115":null,"116":null,"117":null,"118":null,"119":null,"120":null,"121":null,"122":null,"123":null,"124":null,"125":null,"126":null,"127":null,"128":null,"129":null,"130":null,"131":null,"132":null,"133":null,"134":null,"135":null,"136":null,"137":null,"138":null,"139":null,"140":null,"141":null,"142":null,"143":null,"144":null,"145":null,"146":null,"147":null,"148":null,"149":null,"150":null,"151":null,"152":null,"153":null,"154":null,"155":null,"156":null,"157":null,"158":null,"159":null,"160":null,"161":null,"162":null,"163":null,"164":null,"165":null,"166":null,"167":null,"168":null,"169":null,"170":null,"171":null,"172":null,"173":null,"174":null,"175":null,"176":null,"177":null,"178":null,"179":null,"180":null,"181":null,"182":null,"183":null,"184":null,"185":null,"186":null,"187":null,"188":null,"189":null,"190":null,"191":null,"192":null,"193":null,"194":null,"195":null,"196":null,"197":null,"198":null,"199":null,"200":null,"201":null,"202":null,"203":null,"204":null,"205":null,"206":null,"207":null,"208":null,"209":null,"210":null,"211":null,"212":null,"213":null,"214":null,"215":null,"216":null,"217":null,"218":null,"219":null,"220":null,"221":null,"222":null,"223":null,"224":null,"225":null,"226":null,"227":null,"228":null,"229":null,"230":null,"231":null,"232":null,"233":null,"234":null,"235":null,"236":null,"237":null,"238":null,"239":null,"240":null,"241":null,"242":null,"243":null,"244":null,"245":null,"246":null,"247":null,"248":null,"249":null,"250":null,"251":null,"252":null,"253":null,"254":null,"255":null,"256":null,"257":null,"258":null,"259":null,"260":null,"261":null,"262":null,"263":null,"264":null,"265":null,"266":null,"267":null,"268":null,"269":null,"270":null,"271":null,"272":null,"273":null,"274":null,"275":null,"276":null,"277":null,"278":null,"279":null,"280":null,"281":null,"282":null,"283":null,"284":null,"285":null,"286":null,"287":null,"288":null,"289":null,"290":null,"291":null,"292":null,"293":null,"294":null,"295":null,"296":null,"297":null,"298":null,"299":null,"300":null,"301":null,"302":null,"303":null,"304":null,"305":null,"306":null,"307":null,"308":null,"309":null,"310":null,"311":null,"312":null,"313":null,"314":null,"315":null,"316":null,"317":null,"318":null,"319":null,"320":null,"321":null,"322":null,"323":null,"324":null,"325":null,"326":null,"327":null,"328":null,"329":null,"330":null,"331":null,"332":null,"333":null,"334":null,"335":null,"336":null,"337":null,"338":null,"339":null,"340":null,"341":null,"342":null,"343":null,"344":null,"345":null,"346":null,"347":null,"348":null,"349":null,"350":null,"351":null,"352":null,"353":null,"354":null,"355":null,"356":null,"357":null,"358":null,"359":null,"360":null,"361":null,"362":null,"363":null,"364":null,"365":null,"366":null,"367":null,"368":null,"369":null,"370":null,"371":null,"372":null,"373":null,"374":null,"375":null,"376":null,"377":null,"378":null,"379":null,"380":null,"381":null,"382":null,"383":null,"384":null,"385":null,"386":null,"387":null,"388":null}
Document Information
Modified date:
22 February 2023