PQ52309: RECEIVE C9C21440 TRYING TO CREATE NEW CONVERSATION

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APAR status
Closed as program error.

Error description
The customer had recently deployed a very large and complex
J2EE application.  His attempt to create a new conversation
using the Systems Management Administration EUI failed with
a minor code of C9C21440.  This minor code did not offer
details of the failure, but we did find it failed in the
following block of code:
  // lookup class registration in table
        classReg = findClass(className);
        // is class registered?
        if (classReg)
         {
          // create object by calling factory function
          if (classReg->m_factory_function)              // @P2A
           {
            obj= (classReg->m_factory_function)();
            Old_instance_count = classReg->m_instance_count;
The trace output showed the findclass was successful, but
the attempt to run the factory on the object resulted in
the obj variable being set to null.
It turns out, the following LE trace showed the system was
running out of storage:
|_Ism_MethodDOImpl_create        |
|-->(124) malloc(25968)          |
|                                |
|new                             |
|<--(124) R15=00000000 ERRNO=0000|
|0084............................|
|................................|
|........                        |
The customer is running with 2G of storage available.  That
should be plenty to create a new conversation.  So there are
two issues here.
1) Excessive amounts of storage are used while creating a new
conversation.
2) No indication of out of memory was given to help debug this
problem.
Local fix
Right now the only way around this is to cold start and
minimize the size of applications deployed.
Problem summary
****************************************************************
* USERS AFFECTED: All users of WebSphere Application Server    *
*                 V4.0 for z/OS and OS/390.                    *
****************************************************************
* PROBLEM DESCRIPTION: Creating a new conversation leaks       *
*                      storage.                                *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
After deploying very large and complex J2EE application,
creating a new conversation using the WebSphere for z/OS
Administration Application (Systems Management EUI) failed with
a minor code of C9C21440. This minor code did not offer details
of the failure, but it turned out that the system was running
out of storage.
Problem conclusion
Create conversation was reimplemented using DB2 insert/select
support. This solution resolves the reported storage leak which
occurred during create converstion processing.

APAR PQ52309 is associated with SERVICE LEVEL W400047 of
WebSphere Application Server V4.0 for z/OS and OS/390.
Temporary fix Comments
APAR information
APAR number PQ52309
Reported component name WASKBASE
Reported component ID 5655A9801
Reported release 400
Status CLOSED PER
PE NoPE
HIPER NoHIPER
Submitted date 2001-09-11
Closed date 2001-10-18
Last modified date 2001-11-02

APAR is sysrouted FROM one or more of the following:

APAR is sysrouted TO one or more of the following:
UQ58662

Modules/Macros
BBOFAPPS BBOIAPPS BBOIROOT BBOJJU BBOMAPPS BBOMBOOT
BBOMDDLI BBOMDDLO BBOMDDLV BBOMDDLX BBOMDDLZ BBOMGADM
BBOMIB02 BBOMIB04 BBOMIB06 BBOMIB10 BBOMIB15 BBOMIB19
BBOMIB23 BBOMIB27 BBOMIB33 BBOMIB37 BBOMIB41 BBOMIB45
BBOMIB48 BBOMIB58 BBOMIB62 BBOMIB64 BBOMIB66 BBOMIB68
BBOMIB70 BBOMIB80 BBOMIB81 BBOMIB82 BBOMIB83 BBOMIB84
BBOMIB85 BBOMIB86 BBOMICP BBOMIDO BBOMID02 BBOMID04
BBOMID06 BBOMID10 BBOMID15 BBOMID19 BBOMID23 BBOMID27
BBOMID33 BBOMID37 BBOMID41 BBOMID45 BBOMID48 BBOMID58
BBOMID62 BBOMID64 BBOMID66 BBOMID68 BBOMID70 BBOMID80
BBOMID81 BBOMID82 BBOMID83 BBOMID84 BBOMID85 BBOMID86
BBOMRDO BBOMSBO BBOMSBOI BBOMSBOS BBOMSBO1 BBOMSBO2
BBOMSBO3 BBOMSBO4 BBOMSBO5 BBOMSBO6 BBOMSBO7 BBOMSBO8
BBOMSCPI BBOMSCR BBOMSCRS BBOMSD51 BBOMSD90 BBOMSMO
BBOMSMOI BBOMSMOS BBOMUTIL BBOOBOAI BBOOBOAT BBOOORB
BBOOSMOI BBOPAPPS BBOSLAPP BBOSM BBOSNAPP BBOTAPPS
BBOUBINF BBOZ0769 BBOZ0813 BBOZ0814 H28W400J  

Fix information
Fixed component name WASKBASE
Fixed component ID 5655A9801

Applicable component levels
R400 PSY UQ58662    UP01/10/26 P F110

  Fix is available
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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: 400
Software edition:
Reference #: PQ52309
IBM Group: Software Group
Modified date: Nov 2, 2001