PK25709: HTTPSESSION SHOULD NOT BE CREATED IF AN INCOMING HTTP REQUEST ISGET

 Fixes are available

6.1.0.15 WebSphere Application Server V6.1 Fix Pack 15 for i5/OS
5.1.1.17: WebSphere Application Server V5.1.1 Cumulative Fix 17 for AIX
5.1.1.17: WebSphere Application Server V5.1.1 Cumulative Fix 17 for HP-UX
6.1.0.13 WebSphere Application Server V6.1 Fix Pack 13 for AIX
5.1.1.19: WebSphere Application Server V5.1.1 Cumulative Fix 19 for Linux
5.1.1.16: WebSphere Application Server V5.1.1 Cumulative Fix 16 for AIX
6.0.2.25: WebSphere Application Server V6.0.2 Fix Pack 25 for AIX platforms
5.1.1.18: WebSphere Application Server V5.1.1 Cumulative Fix 18 for AIX
5.1.1.18: WebSphere Application Server V5.1.1 Cumulative Fix 18 for HP-UX
6.0.2.27: WebSphere Application Server V6.0.2 Fix Pack 27 for HP-UX platforms
6.1.0.15 WebSphere Application Server V6.1 Fix Pack 15 for AIX
5.1.1.18: WebSphere Application Server V5.1.1 Cumulative Fix 18 for Solaris
5.1.1.18: WebSphere Application Server V5.1.1 Cumulative Fix 18 for Windows
6.1.0.15: WebSphere Application Server V6.1 Fix Pack 15 for HP-UX
6.1.0.15: WebSphere Application Server V6.1 Fix Pack 15 for Windows
6.0.2.27: WebSphere Application Server V6.0.2 Fix Pack 27 for OS/400 platform
6.1.0.13: WebSphere Application Server V6.1 Fix Pack 13 for Windows
6.1.0.17 WebSphere Application Server V6.1 Fix Pack 17 for i5/OS
6.1.0.13: WebSphere Application Server V6.1 Fix Pack 13 for i5/OS
6.1.0.13: WebSphere Application Server V6.1 Fix Pack 13 for HP-UX
6.0.2.27: WebSphere Application Server V6.0.2 Fix Pack 27 for Solaris
6.0.2.27: WebSphere Application Server V6.0.2 Fix Pack 27 for Windows platforms
6.1.0.17: WebSphere Application Server V6.1 Fix Pack 17 for Linux
6.0.2.27: WebSphere Application Server V6.0.2 Fix Pack 27 for AIX platforms
6.0.2.25: WebSphere Application Server V6.0.2 Fix Pack 25 for HP-UX platforms
6.1.0.17: WebSphere Application Server V6.1 Fix Pack 17 for Solaris
6.0.2.23: WebSphere Application Server V6.0.2 Fix Pack 23 for HP-UX platforms
6.1.0.17: WebSphere Application Server V6.1 Fix Pack 17 for HP-UX
6.1.0.17: WebSphere Application Server V6.1 Fix Pack 17 for Windows
6.1.0.17 WebSphere Application Server V6.1 Fix Pack 17 for AIX
6.1.0.13: WebSphere Application Server V6.1 Fix Pack 13 for Solaris
6.1.0.3: WebSphere Application Server V6.1.0 Fix Pack 3 for Solaris
5.1.1.18: WebSphere Application Server V5.1.1 Cumulative Fix 18 for Linux
6.1.0.15: WebSphere Application Server V6.1 Fix Pack 15 for Linux
5.1.1.17: WebSphere Application Server V5.1.1 Cumulative Fix 17 for Linux
5.1.1.17: WebSphere Application Server V5.1.1 Cumulative Fix 17 for Solaris
5.1.1.17: WebSphere Application Server V5.1.1 Cumulative Fix 17 for Windows
6.0.2.23: WebSphere Application Server V6.0.2 Fix Pack 23 for AIX platforms
6.1.0.15: WebSphere Application Server V6.1 Fix Pack 15 for Solaris
5.1.1.19: WebSphere Application Server V5.1.1 Cumulative Fix 19 for AIX
6.0.2.29: WebSphere Application Server V6.0.2 Fix Pack 29 for AIX platforms
6.0.2.29: WebSphere Application Server V6.0.2 Fix Pack 29 for HP-UX platforms
6.0.2.29: WebSphere Application Server V6.0.2 Fix Pack 29 for Linux platforms
V6.0.2: Java SDK 1.4.2 SR11 Cumulative Fix for IBM WebSphere Application Server
6.0.2.29: WebSphere Application Server V6.0.2 Fix Pack 29 for Solaris
6.0.2.29: WebSphere Application Server V6.0.2 Fix Pack 29 for Windows platforms
6.0.2.27: WebSphere Application Server V6.0.2 Fix Pack 27 for Linux platforms
5.1.1.19: WebSphere Application Server V5.1.1 Cumulative Fix 19 for Windows
5.1.1.12: WebSphere Application Server V5.1.1 Cumulative Fix 12 for Windows
5.1.1.16: WebSphere Application Server V5.1.1 Cumulative Fix 16 for Solaris
6.1.0.3: WebSphere Application Server V6.1.0 Fix Pack 3 for Windows
5.1.1.16: WebSphere Application Server V5.1.1 Cumulative Fix 16 for Windows
5.1.1.14: WebSphere Application Server V5.1.1 Cumulative Fix 14 for Solaris
6.1.0.5: WebSphere Application Server V6.1.0 Fix Pack 5 for Solaris
6.1.0.7 WebSphere Application Server V6.1 Fix Pack 7 for AIX
6.1.0.5: WebSphere Application Server V6.1.0 Fix Pack 5 for AIX
5.1.1.12: WebSphere Application Server V5.1.1 Cumulative Fix 12 for AIX
5.1.1.12: WebSphere Application Server V5.1.1 Cumulative Fix 12 for Linux
6.0.2.15: WebSphere Application Server V6.0.2 Fix Pack 15 for OS/400
6.1.0.3: WebSphere Application Server V6.1.0 Fix Pack 3 for HP-UX
5.1.1.12: WebSphere Application Server V5.1.1 Cumulative Fix 12 for HP-UX
6.0.2.15: WebSphere Application Server V6.0.2 Fix Pack 15 for HP-UX
5.1.1.12: WebSphere Application Server V5.1.1 Cumulative Fix 12 for Solaris
6.1.0.3: WebSphere Application Server V6.1.0 Fix Pack 3 for i5/OS
6.1.0.3: WebSphere Application Server V6.1.0 Fix Pack 3 for AIX
6.0.2.25: WebSphere Application Server V6.0.2 Fix Pack 25 for Linux platforms
5.1.1.13: WebSphere Application Server V5.1.1 Cumulative Fix 13 for AIX
6.0.2.25: WebSphere Application Server V6.0.2 Fix Pack 25 for Solaris
6.0.2.25: WebSphere Application Server V6.0.2 Fix Pack 25 for Windows platforms
5.1.1.13: WebSphere Application Server V5.1.1 Cumulative Fix 13 for Windows
5.1.1.13: WebSphere Application Server V5.1.1 Cumulative Fix 13 for HP-UX
5.1.1.15: WebSphere Application Server V5.1.1 Cumulative Fix 15 for Solaris
5.1.1.13: WebSphere Application Server V5.1.1 Cumulative Fix 13 for Solaris
5.1.1.13: WebSphere Application Server V5.1.1 Cumulative Fix 13 for Linux
6.1.0.5: WebSphere Application Server V6.1.0 Fix Pack 5 for Windows
6.0.2.15: WebSphere Application Server V6.0.2 Fix Pack 15 for AIX
6.0.2.15: WebSphere Application Server V6.0.2 Fix Pack 15 for Solaris
6.1.0.5: WebSphere Application Server V6.1.0 Fix Pack 5 for HP-UX
6.0.2.19: WebSphere Application Server V6.0.2 Fix Pack 19 for AIX platforms
6.0.2.17: WebSphere Application Server V6.0.2 Fix Pack 17 for OS/400 platform
6.0.2.17: WebSphere Application Server V6.0.2 Fix Pack 17 for Solaris
6.0.2.17: WebSphere Application Server V6.0.2 Fix Pack 17 for Windows platforms
6.0.2.17: WebSphere Application Server V6.0.2 Fix Pack 17 for HP-UX platforms
6.0.2.17: WebSphere Application Server V6.0.2 Fix Pack 17 for AIX platforms
6.1.0.7: WebSphere Application Server V6.1 Fix Pack 7 for i5/OS
6.1.0.5: WebSphere Application Server V6.1.0 Fix Pack 5 for i5/OS
5.1.1.14: WebSphere Application Server V5.1.1 Cumulative Fix 14 for AIX
5.1.1.14: WebSphere Application Server V5.1.1 Cumulative Fix 14 for Linux
5.1.1.14: WebSphere Application Server V5.1.1 Cumulative Fix 14 for Windows
5.1.1.15: WebSphere Application Server V5.1.1 Cumulative Fix 15 for Windows
6.1.0.9 WebSphere Application Server V6.1 Fix Pack 9 for AIX
6.1.0.9: WebSphere Application Server V6.1 Fix Pack 9 for i5/OS
6.1.0.7: WebSphere Application Server V6.1 Fix Pack 7 for Windows
5.1.1.14: WebSphere Application Server V5.1.1 Cumulative Fix 14 for HP-UX
6.0.2.19: WebSphere Application Server V6.0.2 Fix Pack 19 for HP-UX platforms
6.0.2.19: WebSphere Application Server V6.0.2 Fix Pack 19 for Windows platforms
6.1.0.9: WebSphere Application Server V6.1 Fix Pack 9 for HP-UX
6.0.2.19: WebSphere Application Server V6.0.2 Fix Pack 19 for OS/400 platform
5.1.1.15: WebSphere Application Server V5.1.1 Cumulative Fix 15 for AIX
5.1.1.15: WebSphere Application Server V5.1.1 Cumulative Fix 15 for HP-UX
6.0.2.21: WebSphere Application Server V6.0.2 Fix Pack 21 for HP-UX platforms
6.0.2.21: WebSphere Application Server V6.0.2 Fix Pack 21 for Linux platforms
6.1.0.5: WebSphere Application Server V6.1.0 Fix Pack 5 for Linux
6.1.0.7: WebSphere Application Server V6.1 Fix Pack 7 for HP-UX
6.1.0.3: WebSphere Application Server V6.1.0 Fix Pack 3 for Linux
6.1.0.9: WebSphere Application Server V6.1 Fix Pack 9 for Linux
6.1.0.9: WebSphere Application Server V6.1 Fix Pack 9 for Solaris
6.1.0.9: WebSphere Application Server V6.1 Fix Pack 9 for Windows
6.1.0.11: WebSphere Application Server V6.1 Fix Pack 11 for HP-UX
6.1.0.11: WebSphere Application Server V6.1 Fix Pack 11 for Windows
5.1.1.16: WebSphere Application Server V5.1.1 Cumulative Fix 16 for HP-UX
5.1.1.16: WebSphere Application Server V5.1.1 Cumulative Fix 16 for Linux
6.0.2.23: WebSphere Application Server V6.0.2 Fix Pack 23 for Windows platforms
6.0.2.23: WebSphere Application Server V6.0.2 Fix Pack 23 for Solaris
6.0.2.23: WebSphere Application Server V6.0.2 Fix Pack 23 for OS/400 platform
6.0.2.15: WebSphere Application Server V6.0.2 Fix Pack 15 for Windows
5.1.1.15: WebSphere Application Server V5.1.1 Cumulative Fix 15 for Linux
6.0.2.23: WebSphere Application Server V6.0.2 Fix Pack 23 for Linux platforms
6.0.2.21: WebSphere Application Server V6.0.2 Fix Pack 21 for AIX platforms
6.0.2.21: WebSphere Application Server V6.0.2 Fix Pack 21 for Windows platforms
6.1.0.7: WebSphere Application Server V6.1 Fix Pack 7 for Solaris
6.0.2.21: WebSphere Application Server V6.0.2 Fix Pack 21 for Solaris platforms
6.1.0.7: WebSphere Application Server V6.1 Fix Pack 7 for Linux
6.0.2.19: WebSphere Application Server V6.0.2 Fix Pack 19 for Solaris
6.1.0.11: WebSphere Application Server V6.1 Fix Pack 11 for Solaris
6.1.0.11: WebSphere Application Server V6.1 Fix Pack 11 for Linux
6.1.0.11: WebSphere Application Server V6.1 Fix Pack 11 for i5/OS
6.1.0.11 WebSphere Application Server V6.1 Fix Pack 11 for AIX
6.0.2.17: WebSphere Application Server V6.0.2 Fix Pack 17 for Linux platforms
6.0.2.19: WebSphere Application Server V6.0.2 Fix Pack 19 for Linux platforms
6.1.0.13: WebSphere Application Server V6.1 Fix Pack 13 for Linux
5.1.1.19: WebSphere Application Server V5.1.1 Cumulative Fix 19 for HP-UX
6.1.0.19 WebSphere Application Server V6.1 Fix Pack 19 for AIX
6.1.0.19: WebSphere Application Server V6.1 Fix Pack 19 for HP-UX
6.1.0.19 WebSphere Application Server V6.1 Fix Pack 19 for i5/OS
6.1.0.19: WebSphere Application Server V6.1 Fix Pack 19 for Linux
6.1.0.19: WebSphere Application Server V6.1 Fix Pack 19 for Solaris
6.1.0.19: WebSphere Application Server V6.1 Fix Pack 19 for Windows
Java SDK 1.5 SR8 Cumulative Fix for WebSphere Application Server
6.1.0.21 WebSphere Application Server V6.1 Fix Pack 21 for AIX
6.0.2.31: WebSphere Application Server V6.0.2 Fix Pack 31 for AIX platforms
6.0.2.31: WebSphere Application Server V6.0.2 Fix Pack 31 for HP-UX platforms
6.0.2.31: WebSphere Application Server V6.0.2 Fix Pack 31 for OS/400 platform
6.0.2.31: WebSphere Application Server V6.0.2 Fix Pack 31 for Linux platforms
6.0.2.31: WebSphere Application Server V6.0.2 Fix Pack 31 for Solaris
6.0.2.31: WebSphere Application Server V6.0.2 Fix Pack 31 for Windows platforms
V6.0.2: Java SDK 1.4.2 SR11 Cumulative Fix for IBM WebSphere Application Server
6.1.0.21 WebSphere Application Server V6.1 Fix Pack 21 for i5/OS
6.1.0.21: WebSphere Application Server V6.1 Fix Pack 21 for Windows
6.1.0.21: WebSphere Application Server V6.1 Fix Pack 21 for Solaris
6.1.0.21: WebSphere Application Server V6.1 Fix Pack 21 for Linux
Java SDK 1.5 SR8 Cumulative Fix for WebSphere Application Server
6.1.0.21: WebSphere Application Server V6.1 Fix Pack 21 for HP-UX



APAR status
Closed as program error.

Error description
Although 
PQ94384 fix is for preserving parameters of POST
command, it creates httpsession even GET request and leave it
alone.
Local fix Problem summary
****************************************************************
* USERS AFFECTED: WebSphere Application Server versions 5 and  *
*                 6 users who are using form login method.     *
****************************************************************
* PROBLEM DESCRIPTION: Potential Out of Memory situation when  *
*                      large number of POST requests come to   *
*                      the server.                             *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
Since WebSphere Application Server stores POST parameters into
HTTP Session when an incoming request is redirected to a form
login page for authentication, if a large number of users are
trying to log in concurrently, WebSphere Application Server
consumes all of available heap space and eventually starts
failing login process.
Problem conclusion
The code is modified to store POST parameters to cookie which
is the default. The following global security custom property
can be used to override the default behavior:

Property Name:
"com.ibm.websphere.security.util.postParamSaveMethod"

Values:
"Cookie"  - POST parameters are stored in cookie. This is the
            default after applying this APAR fix.
"Session" - Post parameters are stored in HTTP Session. This
            is the original behavier.
"Disable" - Post parameters are not preserved.

The fix for this APAR is currently targeted for inclusion
in fixpacks 5.1.1.12, 6.0.2.15 and 6.1.0.3.
Please refer to the recommended updates page for delivery
information:

http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
Temporary fix Comments
APAR information
APAR number PK25709
Reported component name WAS NETWRK DEPL
Reported component ID 5630A3601
Reported release 00A
Status CLOSED PER
PE NoPE
HIPER NoHIPER
Special Attention NoSpecatt
Submitted date 2006-05-29
Closed date 2006-08-17
Last modified date 2006-10-16

APAR is sysrouted FROM one or more of the following:

APAR is sysrouted TO one or more of the following:

Modules/Macros
SECURITY          

Publications Referenced

Fix information
Fixed component name WAS NETWRK DEPL
Fixed component ID 5630A3601

Applicable component levels
R003 PSY    UP
R00A PSY    UP
R00H PSY    UP
R00I PSY    UP
R00P PSY    UP
R00S PSY    UP
R00W PSY    UP
R10A PSY    UP
R10H PSY    UP
R10I PSY    UP
R10P PSY    UP
R10S PSY    UP
R10W PSY    UP


Document Information


Product categories: Software > Application Servers > Distributed Application & Web Servers > WebSphere Application Server > General
Operating system(s):
Software version: 00A
Software edition:
Reference #: PK25709
IBM Group: Software Group
Modified date: Oct 16, 2006