A fix is available
APAR status
Closed as program error.
Error description
When running certain DB2 Stored Procedures (crypto access) with SECURITY USER, the number of ICH7000I messages issued by successful RACROUTES in the WLM Begin Server Transaction Service becomes intolerable. The SYSLOG is flooded with these messages. The RACROUTE invocation in the WLM Begin Server Transaction Service needs to be modified to suppress the ICH7000I message for successful completion. To reduce the performance impact of moving to SECURITY USER, the RACROUTE invocation in the WLM Begin Server Transaction also needs to be extended with an APPL parameter that allows RACF statistics to be restriced to once per user per day.
Local fix
As a circumvention, run those DB2 Stored Procedures with SECURITY DB2. This causes the requests to be inserted into the queue without user ID, and the WLM Begin Server Transaction Service not to invoke RACROUTE at all.
Problem summary
**************************************************************** * USERS AFFECTED: All users of z/OS 2.1 (HBB7790) and * * above. * **************************************************************** * PROBLEM DESCRIPTION: Excessive ICH700001I messages when * * running transactions in application * * environments that use SECUSER=YES * **************************************************************** * RECOMMENDATION: None * **************************************************************** When running an application environment where SECUSER=YES is specified on the IWM4QINS macro, the number of ICH70001I messages issued for successful completion of the RACROUTE issued by the WLM Begin Server Transaction (IWM4STBG) service can become excessive. The RACROUTE invocation in IWMM2SEC needs to be modified to suppress the ICH70001I message for successful completion. To reduce the performance impact of moving to SECURITY USER, the RACROUTE invocation in IWMM2SEC also needs to be extended with an APPL parameter that allows RACF statistics to be restriced to once per user per day.
Problem conclusion
A new parameter SUPPSAFINFOMSG in the IEAOPTxx member of SYS1.PARMLIB has been defined to allow an installation to suppress the ICH70001I message for successful completions of RACROUTE invocations in the WLM Begin Server Transaction (IWM4STBG) service. The default for the new IEAOPTxx parameter SUPPSAFINFOMSG=YES/NO is NO which does not change the current behavior. Indicator RMCTZ_SUPPSAFINFOMSG was introduced in control structure IRARMCTZ to reflect the current SUPPSAFINFOMSG status. ON signals SUPPSAFINFOMSG=YES. IWMM2SEC has been updated to check if RMCTZ_SUPPSAFINFOMSG is ON and if so, it now specifies MSGSUPP=YES on the RACROUTE invocation so that message ICH70001I is suppressed during IWM4STBG proccessing and it also passes an APPL class profile that allows RACF statistics to be restriced to once per user per day. The procedure name associated with the started task is used for the name of the APPL class. +--- Documentation to be updated ------------------------------+ | | | z/OS 2.1: | | SA23-1380-04 MVS Initialization and Tuning Reference | | | | z/OS 2.2: | | SA23-1380-07 MVS Initialization and Tuning Reference | | | +--- Location in Publication ----------------------------------+ | | | z/OS 2.1: | | SA23-1380-04 MVS Initialization and Tuning Reference | | | | Chapter 49. IEAOPTxx (OPT parameters) | | In the '1. Special Options:' list, add in alphabetical | | order: | | | | z/OS 2.2: | | SA23-1380-07 MVS Initialization and Tuning Reference | | | | | | Chapter 50. IEAOPTxx (OPT parameters) | | In the '1. Special Options:' list, add in alphabetical | | order: | | | | order: | | | | | +--------------------------------------------------------------+ | | | ,SUPPSAFINFOMSG=YES|NO (default NO) | | | +--------------------------------------------------------------+ +--- Documentation to be updated ------------------------------+ | | | z/OS 2.1: | | SA23-1380-04 MVS Initialization and Tuning Reference | | | | z/OS 2.2: | | SA23-1380-07 MVS Initialization and Tuning Reference | | | +--- Location in Publication ----------------------------------+ | | | z/OS 2.1: | | SA23-1380-04 MVS Initialization and Tuning Reference | | | | Chapter 49. IEAOPTxx (OPT parameters) | | Statements/parameters for IEAOPTxx | | | | Add IEAOPT parameter in alphabetical order. | | | | z/OS 2.2: | | SA23-1380-07 MVS Initialization and Tuning Reference | | | | Chapter 50. IEAOPTxx (OPT parameters) | | | | Add IEAOPT parameter in alphabetical order. | | | | | +--------------------------------------------------------------+ +--------------------------------------------------------------+ | | | SUPPSAFINFOMSG=YES|NO (default NO) | | | | Specifies if SAF informational messages issued for | | successful completion of RACROUTE invocations in the | | WLM Begin Server Transaction (IWM4STBG) service should | | be suppressed. | | | | YES | | SAF informational messages issued for successful | | completion of RACROUTE invocations in the WLM Begin | | Server Transaction (IWM4STBG) service are suppressed. | | Furthermore, an APPL class profile is passed on the | | RACROUTE invocation that allows RACF statistics to be | | restriced to once per user per day. | | The procedure name associated with the started task | | is used as the name of the APPL class. | | | | For sample security definitions that restrict RACF | | statistics to once per user per day, check | | | | http://www.ibm.com/support/knowledgecenter/ | | SSLTBW_2.1.0/com.ibm.zos.v2r1.icha700/daily.htm | | http://www.ibm.com/support/knowledgecenter/ | | SSLTBW_2.2.0/com.ibm.zos.v2r2.icha700/daily.htm | | | | (Note to ID: First link is for 2.1 and second link | | is for 2.2, content is the same) | | | | | | NO | | Informational messages issued for successful | | completion of RACROUTE invocations in the WLM Begin | | Server Transaction Service (IWM4STBG) are not | | suppressed. No APPL parameter is passed on the | | RACROUTE invocation. | | | | Default value: NO | | | +--------------------------------------------------------------+ +--- Documentation to be updated ------------------------------+ | | | z/OS 2.1: | | GA32-0938-02 -- z/OS V2R1 MVS Data Areas Volume 4 | | (IRARMCTZ -LCT) | | | | z/OS 2.2: | | GA32-0936-03 -- z/OS V2R2 MVS Data Areas Volume 2 | | (IAX - ISG) | | | +--- Location in Publication ----------------------------------+ | | | z/OS 2.1: | | GA32-0938-02 -- z/OS V2R1 MVS Data Areas Volume 4 | | (IRARMCTZ -LCT) | | | | Chapter IRARMCTZ Information | | In the 'IRARMCTZ mapping', add the following: | | | | z/OS 2.2: | | GA32-0936-03 -- z/OS V2R2 MVS Data Areas Volume 2 | | (IAX - ISG) | | | | Chapter 229. IRARMCTZ Information | | In the 'IRARMCTZ mapping', add the following: | | | | | +--------------------------------------------------------------+ +--------------------------------------------------------------+ | | | 14 (E) BITSTRING 1 RMCTZ_FLAG2 RMCTZ Flag 2 | | Bit definitions: | | 1... .... RMCTZ_VCM_OPT "X80" 1:=VCM specified | | .1.. .... RMCTZ_VCM "X40" 1:=Running in vertical | | CP management mode | | ..1. .... RMCTZ_IOMS "X20" 1:= I/O management | | support turned on | | ...1 .... RMCTZ_FULLPRESYSTEM "X'10'" 1:=FullPreSystem | | specified | | .... 1... RMCTZ_ABSMSUCAPPING "X'08'" 1:=ABSMSUCAPPING | | .... .1.. RMCTZ_SUPPSAFINFOMSG "X'04'" 1:=SUPPSAFINFOMSG | | .... ..11 RMCTZ_FLAG2_RSVD1 "X'0F'" reserved | | | +--------------------------------------------------------------+ +--- Documentation to be updated ------------------------------+ | | | z/OS 2.1: | | GA32-0938-02 -- z/OS V2R1 MVS Data Areas Volume 4 | | (IRARMCTZ -LCT) | | | | z/OS 2.2: | | GA32-0936-03 -- z/OS V2R2 MVS Data Areas Volume 2 | | (IAX - ISG) | | | +--- Location in Publication ----------------------------------+ | | | z/OS 2.1: | | GA32-0938-02 -- z/OS V2R1 MVS Data Areas Volume 4 | | (IRARMCTZ -LCT) | | | | Chapter IRARMCTZ Information | | In the 'Cross Reference for IRARMCTZ', add in | | alphabetical order: | | | | z/OS 2.2: | | GA32-0936-03 -- z/OS V2R2 MVS Data Areas Volume 2 | | (IAX - ISG) | | | | Chapter 229. IRARMCTZ Information | | In the 'Cross Reference for IRARMCTZ', add in | | alphabetical order: | | | | | +--------------------------------------------------------------+ | | | RMCTZ_ABSMSUCAPPING E 08 | | RMCTZ_SUPPSAFINFOMSG E 04 | | | +--------------------------------------------------------------+
Temporary fix
Comments
APAR Information
APAR number
OA50291
Reported component name
WORK LOAD MANAG
Reported component ID
5752SCWLM
Reported release
790
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2016-04-11
Closed date
2016-07-01
Last modified date
2016-08-02
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UA82153 UA82154
Modules/Macros
IEAVNP10 IRAOLST IRARMCTZ IRARMOPT IRARMSOP IWMM2SEC IWMW2OPQ
| SA23138000 | GA32093800 | GA32093600 |
Fix information
Fixed component name
WORK LOAD MANAG
Fixed component ID
5752SCWLM
Applicable component levels
Fix is available
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Document Information
Modified date:
02 August 2016