PQ65762: WEBSPHERE GETS A NEW DATASPACE IN BBOSMS EVERYTIME J2EE SERVER IS STARTED AND STOPPING SERVER DOES NOT RELEASE DATASPACE.

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APAR status
Closed as program error.

Error description
WebSphere adds a new dataspace to its systems management server
every time a J2EE server is started which has SMF recording
enabled. The dataspace is supposed to be deleted once the J2EE
server is stopped, but this only occurs if SMF recording is
also enabled in the systems management server. When SMF
recording is disabled in systems management then the data space
is not deallocated. Repeated J2EE server stops and starts under
these circumstances ends up leaving many unused data spaces
assigned to the systems management server control region address
space (BBOSMS).
  You can use the D A,BBOSMS operator command to display the
systems management server control region and associated
dataspaces. Here is an example output that shows several data
spaces that have not been cleaned up.
NETAR 13:53:36 D A,BBOSMS
CPUR  13:53:36
IEE115I 13.53.36 2002.235 ACTIVITY 489
JOBS    M/S    TS USERS    SYSAS  INITS   ACTIVE/MAX VTAM OAS
00045   00119    00243      00036 00157    00239/00970 00086
BBOSMS  SYSMGT01 BBOSMS   NSW  SO A=0529   PER=NO   SMC=000
                                  PGN=N/A  DMN=N/A  AFF=NONE
                                  CT=287.809S  ET=00291.11
                                  WUID=JOB01064 USERID=CBSYMCR1
                                  WKL=SYSTEM   SCL=SYSSTC   P=1
                                  RGP=N/A      SRVR=NO  QSC=NO
                                  ADDR SPACE ASTE=7B2B1A40
                                  DSPNAME=00099BBO ASTE=648C5A8
                                  DSPNAME=00096BBO ASTE=65B99F0
                                  DSPNAME=00095BBO ASTE=648C588
                                  DSPNAME=00089BBO ASTE=65B99E0
                                  DSPNAME=00094BBO ASTE=24C7448
                                  DSPNAME=00093BBO ASTE=648C520
                                  DSPNAME=00092BBO ASTE=648C530
                                  DSPNAME=00097BBO ASTE=28C5390
                                  DSPNAME=00070BBO ASTE=65B9978
This amounts to a leak of a data space and some amount of
virtual storage each time the J2EE server is stopped. The data
space is created with DSPSERV CREATE BLOCKS(524287) but it is
not clear exactly how much of that is in use. It depends on the
J2EE server's SMF recording activity.
Local fix Problem summary
****************************************************************
* USERS AFFECTED: All users of WebSphere Application Server    *
*                 V4.0.1 for z/OS and OS/390                   *
****************************************************************
* PROBLEM DESCRIPTION: SMF does not delete dataspaces which    *
*                      are no longer used.                     *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
SMF creates dataspaces to record activity and interval data.
Each time a server is restarted if SMF recording is enabled, a
new dataspace is created. The old dataspace is not deleted. If
SMF recording is toggled off completely, the unused dataspace is
not deleted.
Problem conclusion
The code has been changed so that the SMF processing thread will
run to delete dataspaces that are no longer used.

APAR PQ65762 is associated with SERVICE LEVEL W401500 of
WebSphere Application Server V4.0.1 for z/OS and OS/390.
Temporary fix Comments
APAR information
APAR number PQ65762
Reported component name WASKBASE
Reported component ID 5655A9801
Reported release 401
Status CLOSED PER
PE NoPE
HIPER NoHIPER
Submitted date 2002-08-30
Closed date 2003-02-13
Last modified date 2003-03-05

APAR is sysrouted FROM one or more of the following:

APAR is sysrouted TO one or more of the following:

Modules/Macros
BBOUBINF          

Fix information
Fixed component name WASKBASE
Fixed component ID 5655A9801

Applicable component levels
R401 PSY UQ74000    UP03/02/28 P F302

  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: 401
Software edition:
Reference #: PQ65762
IBM Group: Software Group
Modified date: Mar 5, 2003