PQ74824: WebSphere for z/OS sometimes can't start new server regions with BBOO_WORKLOAD_PROFILE=IOBOUND or BBOO_WORKLOAD_PROFILE=CPUBOUND

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APAR status
Closed as program error.

Error description
WebSphere for z/OS is unable to start additional server regions
when the server's environment variable BBOO_WORKLOAD_PROFILE is
set to IOBOUND or CPUBOUND when the number of CPUs active on
the processor has been changed since the server itself was
started. The following messages are received:
BBOU0041E Function IWMCONN failed with RC=8, REASON=1104085C
BBOU0006E CB SERIES SERVER PW2FONEA ENDED
ABNORMALLY,REASON=C9C21031
The syslog says *IWM032I INTERNAL STOP FOR PW2FONE COMPLETED
  The APPLENV for the server is stopped. Resuming the APPLENV
Local fix
does not clear the problem. The only way to clear the problem is
to stop the control region and restart it.
  Each server region that is started must have the same number
of WLM worker threads. The number of worker threads is computed
based on the number of currently active CPUs if
BBOO_WORKLOAD_PROFILE is set to IOBOUND or CPUBOUND.  If the
number of active CPUs changes over time, it will be impossible
to create new server instances because the requested number of
WLM worker threads will be different than the number established
for the server on that system.

Use BBOO_WORKLOAD_PROFILE values of NORMAL or LONGWAIT, or
remove BBOO_WORKLOAD_PROFILE completely from current.env.
Problem summary
****************************************************************
* USERS AFFECTED: All users of WebSphere Application Server    *
*                 version 4.0.1 for z/OS and OS/390            *
****************************************************************
* PROBLEM DESCRIPTION: Additional server regions fail to start *
*                      when the server's environment variable  *
*                      BBOO_WORKLOAD_PROFILE is set to IOBOUND *
*                      or CPUBOUND when the number of CPUs     *
*                      active on the processor has been        *
*                      changed since the server itself was     *
*                      started. The following messages are     *
*                      received:                               *
*                      BBOU0041E Function IWMCONN failed with  *
*                                RC=8, REASON=1104085C         *
*                      BBOU0006E CB SERIES SERVER              *
*                                xxxxxxxx ENDED ABNORMALLY,    *
*                                REASON=C9C21031               *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
When a server region comes up it determines the number of WLM
worker threads based on the number of active CPUs if the
server's environment variable BBOO_WORKLOAD_PROFILE is set to
IOBOUND or CPUBOUND. If number of active CPUs is changed since
the server itself was started, WebSphere for z/OS is unable to
start additional server regions because the number of WLM worker
threads will be different than the number established for the
server on that system. The number of worker threads must be
consistent.
Problem conclusion
Code was modified such that the initial number of threads is
calculated once based on the number of CPUs when the control
region initializes. Even though number of CPUs might change in
between server regions startups, they all get the same value
from the control region. The number of threads remains same for
all server regions.

APAR PQ74824 is associated with SERVICE LEVEL W401510 of
WebSphere Application Server version 4.0.1 for z/OS and OS/390.
Temporary fix Comments
APAR information
APAR number PQ74824
Reported component name WASKBASE
Reported component ID 5655A9801
Reported release 401
Status CLOSED PER
PE NoPE
HIPER NoHIPER
Submitted date 2003-06-03
Closed date 2003-07-29
Last modified date 2003-08-06

APAR is sysrouted FROM one or more of the following:

APAR is sysrouted TO one or more of the following:
PQ75519 UQ78989

Modules/Macros
BBOAPCEI BBOAPCWI BBOAPIAI BBOAPIOI BBOAPXLI BBOAXCEI
BBOAXIAI BBOCASHS BBOCASYD BBOCASYH BBOCASYN BBOCASYS
BBOCLSAC BBOCLSCC BBOCLSES BBOCLSPC BBOCLSSA BBOCLSUE
BBOCLSUR BBOCMIOR BBOCORBA BBOCPFMT BBOCRDTA BBOCWBAL
BBOCWSMP BBODASRP BBODASRS BBODASRU BBODBGVT BBODDAUT
BBODENFL BBODRDTA BBOFRAS BBOFRCGD BBOFRCGS BBOIBOIM
BBOIDRMI BBOIGTID BBOIIMA BBOIIMC BBOIIMS BBOIKEYS
BBOIRDB BBOIROOT BBOITLS BBOI3PLI BBOJJU BBOLORB
BBOLRT BBOMDDLI BBOMDDLO BBOMDDLV BBOMDDLX BBOMDDLZ
BBOMGSCO BBOMIBO BBOMICP BBOMIDO BBOMIMEX BBOMRDO
BBOMSBO BBOMSCO BBOMSCP BBOMSDO BBOMSMS BBOMUTIL
BBOOAACI BBOOABM BBOOACCI BBOOACQE BBOOACQW BBOOACRT
BBOOAET BBOOAGEN BBOOAGEV BBOOAIM BBOOAIMR BBOOAIMS
BBOOAMR BBOOAPBC BBOOAPCI BBOOARCI BBOOARMR BBOOARMW
BBOOAS1 BBOOAS2 BBOOAS3 BBOOAS4 BBOOAS5 BBOOBDLD
BBOOBIND BBOOBOAI BBOOBOAM BBOOBOAT BBOOCRHT BBOOCSIT
BBOOCTL BBOODCTX BBOODGAI BBOODGCA BBOODQCA BBOODQEB
BBOODRAI BBOODSAB BBOODSM BBOOEJSB BBOOEVAS BBOOGSCO
BBOOHA BBOOOPIP BBOOOPIX BBOOORB BBOOORBP BBOOORBX
BBOOOUTP BBOOPCCR BBOORCTX BBOORDTA BBOOSBOA BBOOSCHD
BBOOSCTX BBOOSDCT BBOOSMFC BBOOSMFP BBOOSMFR BBOOSMFT
BBOOSMFW BBOOSOUT BBOOSRBF BBOOSRM BBOOSRQA BBOOSRQF
BBOOSRR BBOOSRWT BBOOSS BBOOSSMF BBOOSSNQ BBOOSSQA
BBOOSSRR BBOOSSTP BBOOSWRK BBOOTMOT BBOOTMTM BBOOTRD
BBOOTTIP BBOOTTIX BBOOUBND BBOOWORK BBOPBO BBOPCH
BBOPCO BBOPDO BBOPPK BBORABND BBORADMP BBORARM
BBORBACB BBORBOAM BBORDTF BBORFRR BBORGETS BBORJRAS
BBORLEXT BBORMCDP BBORMCDX BBOROBML BBOROBMS BBOROMDL
BBOROOPI BBOROSMD BBOROTTI BBORPTRC BBORRDTA BBORRMC
BBORRMGR BBORSDMP BBORTDF2 BBORTDL2 BBORTRCD BBORTSRB
BBORTSSX BBORTWRT BBOSEXT BBOSLDO BBOSLHM BBOSLLO
BBOSLMO BBOSLPK BBOSLRL BBOSLSO BBOSLUT BBOSM
BBOSNCO BBOSNDO BBOSNLN BBOSNMO BBOSNPK BBOSNSM
BBOSNSS BBOSQ03 BBOSSACE BBOSSACX BBOSSCTX BBOSSDB2
BBOSSEXT BBOSSINI BBOSSIT ***This field was
truncated. To obtain the full apar
record, please contact your local support
center.***          

Fix information
Fixed component name WASKBASE
Fixed component ID 5655A9801

Applicable component levels
R401 PSY UQ78989    UP03/08/01 P F307

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Document Information


Product categories: Software > Application Servers > Distributed Application & Web Servers > WebSphere Application Server for z/OS
Operating system(s):
Software version: 401
Software edition:
Reference #: PQ74824
IBM Group: Software Group
Modified date: Aug 6, 2003