PQ61459: BBOSMSS RECEIVES ABENDDC3 REASON 090E0001 FROM BBO3ENQP/GQSCAN WHILE A DIFFERENT SYSTEM IS PARTITIONED OUT OF SYSPLEX

APAR status
Closed as fixed if next.

Error description
In a sysplex, one system is running WebSphere and another
system that is not running WebSphere.  The system that is
not running WebSphere is partitioned out of the sysplex, the
Systems Management server server region, BBOSMSS, on the
system that is running WebSphere receives abendDC3 with reason
090E0001.  The following messages can be seen in the BBOSMSS
job log:
CEE3250C The system or user abend SDC3  R=090E0001 was issued.
         From compile unit BBO3ENQP at entry point BBO3TENQ at
         compile unit offset....
IEF450I BBOSMSS BBOSMSS - ABEND=SDC3 U0000 REASON=090E0001
.
After the three tries then WLM stops the application
environment for Systems Management:
BBOU0199E UNABLE TO SCHEDULE WORK, WLM APPLICATION ENVIRONMENT
CBSYSMGT HAS STOPPED.
.
The command to partition the system out of the sysplex is not
issued from the system where WebSphere is running.  Abend
reason code 090E0001 indicates the MVS GQSCAN service cannot
give an answer to the WebSphere call from BBO3ENQP to the MVS
GQSCAN service trying to determine the status of WebSphere
servers on this same system, resulting in the DC3 abend,
reason 090E0001.  GQSCAN is not giving an answer while the
system is being partitioned out of the sysplex.
.
No CEEDUMPs nor SVC dumps were produced from this abend, only
the WLM application environment for Systems Management being
stopped and the abendDC3 reason 090E0001.  There were no
indications in SYSLOG that a dump had been supressed.  There
may be no indication of any other activity in SYSLOG or the
following message may be seen:
ISG343I 15.08.25 GRS STATUS 546
ONLY LOCAL RESOURCE DATA RETURNED -
UNABLE TO OBTAIN GLOBAL DATA FROM ALL SYSTEMS IN THE SYSPLEX
NO REQUESTS PENDING FOR ISGLOCK STRUCTURE
NO LATCH CONTENTION EXISTS
.
WebSphere needs to handle the case where it cannot obtain
an answer from GQSCAN in this scenario.
Local fix
Wait until the system has completed partitioning out of the
sysplex before resuming the WLM application environment for
Systems Management.
Problem summary
****************************************************************
* USERS AFFECTED:                                              *
*                 All users of WebSphere Application Server    *
*                 V4.0 and V4.0.1 for z/OS and OS/390          *
****************************************************************
* PROBLEM DESCRIPTION: ABENDDC3/ABENDSDC3-090E0001 from        *
*                      BBO3ENQP while a system is partioning   *
*                      out of the sysplex.                     *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
ENQs are used for a number of reasons in the WAS infrastructure
and the GQSCAN service is used to determine if particular ENQs
are held or not.  Since WAS activity is across the sysplex, ENQs
are generally SYSTEMS in scope.  The GQSCAN service cannot
return sysplex-wide information on ENQs while a system is
partitioning out of the sysplex and returns a RC/RSN of
x'C'/x'C'. Depending on the reason the GQSCAN was being done,
various failures may occur because WebSphere experiences
failures using GQSCAN. In the situation associated with the APAR
resulted in a server region failing to start.  Note that not all
GQSCAN failures will result in the abend/reason code mentioned
in this APAR as GQSCANs are done in numerous places within the
WebSphere product.
Problem conclusion Temporary fix Comments
This APAR is being closed FIN with concurrence from the
submitting customer. A solution to this problem will be
delivered in a WebSphere Application Server for z/OS
and OS/390 release within the next 18 months.
APAR information
APAR number PQ61459
Reported component name WASKBASE
Reported component ID 5655A9801
Reported release 401
Status CLOSED FIN
PE NoPE
HIPER NoHIPER
Submitted date 2002-05-22
Closed date 2002-07-01
Last modified date 2002-07-01

APAR is sysrouted FROM one or more of the following:

APAR is sysrouted TO one or more of the following:

Modules/Macros

Fix information

Applicable component levels
R401 PSN    UP


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 #: PQ61459
IBM Group: Software Group
Modified date: Jul 1, 2002