Fix (APAR):  PI73401

Status:  Fix

Release:  9.0.0.2

Operating System:  AIX,HP-UX,IBM i,Inspur K-UX,Linux,OS X,Solaris,Windows,iOS,z/OS

Supersedes Fixes:  

CMVC Defect:  xxxxxx

Byte size of APAR:  393730

Date: 2016-12-13

Abstract:  outofmemory seen when multiple users are logged-in in jsf portlet application

Description/symptom of problem:  
PI73401 resolves the following problem:

ERROR DESCRIPTION:                                              
Multiple users access the JSF Portlet application and after     
some time we see out of memory exceptions as JVM heap continues 
to grow                                                         

LOCAL FIX:                                                      

PROBLEM SUMMARY

USERS AFFECTED:
 All users of IBM WebSphere Application
Server

PROBLEM DESCRIPTION:
While running JSF portlet
applications by many users, an OOM is
seen and session data gets lost

RECOMMENDATION:
None

When many users access JSF Portlet application concurrently,
session data gets mixed up and lost. Also during peak usage,
an OutofMemory error is encountered in the JVM heap which
requires a JVM restart.

PROBLEM CONCLUSION:                                             
Code was modified to correctly handle concurrent session data.  
The fix for this APAR is currently targeted for inclusion in    
fix pack 9.0.0.3.  Please refer to the Recommended Updates      
page for delivery information:                                  
http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980   


Directions to apply fix:  
Install Fix to all WebSphere installations unless special instructions are included below.

Special Instructions: None

NOTE:
The user must:
* Logged in with the same authority level when unpacking a fix, fix pack or refresh pack.
* Be at V1.8.5 or newer of the Installation Manager. Certain iFixes may require a newer version of the Installation Manager and the Installation Manager will inform you during the installation process if a newer version is required.

The IBM Information Center can provide details, if needed, on the use of the Installation Manager to apply the iFixes.
http://www.ibm.com/support/knowledgecenter/SSDV2W_1.8.5/com.ibm.cic.agent.ui.doc/helpindex_imic.html.  Shutdown WebSphere Application Server before applying the iFixes.  Restart WebSphere Application Server after applying the iFixes.

Directions to remove fix:  

The IBM Information Center can provide details, if needed, on the use of the Installation Manager to remove the iFixes.
http://www.ibm.com/support/knowledgecenter/SSDV2W_1.8.5/com.ibm.cic.agent.ui.doc/helpindex_imic.html.  Shutdown WebSphere Application Server before removing the iFixes.  Restart WebSphere Application Server after removing the iFixes.

Directions to re-apply fix:  
1) Shutdown WebSphere Application Server.

2) Follow the Fix instructions to apply the fix.

3) Restart WebSphere Application Server.



Additional Information: