A fix is available
APAR status
Closed as program error.
Error description
VTAM ECSA in SP241 KEY6 RUPEPRIV UTILCSAL growth following IST467I CONTACTED ERROR. Storage is queued on Enterprise Extender AUNCB_DELAYED_RCM_RUPE_Q and is never freed although the connection is dead. This APAR is to limit the number of inbound RCM signals.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All using AHHC or Enterprise Extender * * connections. * **************************************************************** * PROBLEM DESCRIPTION: VTAM STORAGE GROWTH IN SP241 ECSA * * (UTILCSAL). * **************************************************************** * RECOMMENDATION: * **************************************************************** The problem is summarized as follows: 1) Inbound Connection_Setup signals (RUPEs) are being accumulated on the AUNCB_DELAYED_RCM_RUPE_Q waiting for the Enterprise Extender connection to complete CONTACTED processing. 2) It is assumed an error occurred during CONTACTED processing that did not generate a cleanup flow to the AUNCB PU PAB. 3) This left the connection in an undesirable state accumulating Connection_Setup RUPEs (new RTP pipe activation requests). 4) This leads to high RUPEPRIV and UTILCSAL GETBLK storage pool growth. 5) There were no traces to understand what caused the CONTACTED error. This APAR is addressing the problem of queueing inbound RCM RUPEs endlessly.
Problem conclusion
ISTAHNCB - Defined AHNCB_DELAYED_RCM_RUPE_Q_CNT to hold the current count of RUPEs on the AHNCB_DELAYED_RCM_RUPE_Q. Also defined a new constant AHNCB_DELAYED_RCM_RUPE_Q_LIMIT to define a queue limit for the AHNCB_DELAYED_RCM_RUPE_Q. ISTAUNCB - Defined AUNCB_DELAYED_RCM_RUPE_Q_CNT to hold the current count of RUPEs on the AUNCB_DELAYED_RCM_RUPE_Q. Also defined a new constant AUNCB_DELAYED_RCM_RUPE_Q_LIMIT to define a queue limit for the AUNCB_DELAYED_RCM_RUPE_Q. ISTTSCRC - Modified code to free inbound RCM RUPEs if the number of delayed RCM RUPEs exceeds the queue limit (for AHHC and EE). Also, added the QCOUNTER operand to the TPADDEL invocation when processing RUPEs on the AUNCB_DELAYED_RCM_RUPE_Q and AHNCB_DELAYED_RCM_RUPE_Q queues. ISTAUCLA - Added the QCOUNTER operand to the TPREMEL invocation when processing RUPEs on the AUNCB_DELAYED_RCM_RUPE_Q. ISTTSC9P - Added the QCOUNTER operand to the TPREMEL invocation when processing RUPEs on the AHNCB_DELAYED_RCM_RUPE_Q. ISTTSCCN - Added the QCOUNTER operand to the TPREMEL invocation when freeing RUPEs on the AUNCB_DELAYED_RCM_RUPE_Q and AHNCB_DELAYED_RCM_RUPE_Q queues. ISTTSC8E - Included for maintenance purposes.
Temporary fix
********* * HIPER * *********
Comments
APAR Information
APAR number
OA31309
Reported component name
VTAM V4 MVS/ESA
Reported component ID
569511701
Reported release
190
Status
CLOSED PER
PE
NoPE
HIPER
YesHIPER
Special Attention
NoSpecatt
Submitted date
2009-12-02
Closed date
2009-12-21
Last modified date
2010-03-01
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UA51906 UA51907 UA51908
Modules/Macros
ISTAHNCB ISTAUCLA ISTAUNCB ISTTSCCN ISTTSCRC ISTTSC8E ISTTSC9P
Fix information
Fixed component name
VTAM V4 MVS/ESA
Fixed component ID
569511701
Applicable component levels
R1A0 PSY UA51906
UP10/02/09 P F002
R1B0 PSY UA51907
UP10/02/09 P F002
R190 PSY UA51908
UP10/02/09 P F002
Fix is available
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Document Information
Modified date:
01 March 2010