Fix (APAR):  PI52986

Status:  Fix

Release:  8.5.5.5

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

Supersedes Fixes:  

CMVC Defect:  xxxxxx

Byte size of APAR:  623960

Date: 2016-01-29

Abstract:  In doubt transactions are not recovered on server restart

Description/symptom of problem:  
PI52986 resolves the following problem:

ERROR DESCRIPTION:                                              
In doubt transactions are not recovered on server restart       

LOCAL FIX:                                                      

PROBLEM SUMMARY

USERS AFFECTED:
 All users of IBM WebSphere Application
Server Liberty

PROBLEM DESCRIPTION:
XA Transaction recovery issues could
occur with Liberty prior to V8.5.5.8

RECOMMENDATION:
None

There is a small timing window where a Liberty server
performing transaction recovery after a crash may rollback an
XA
resource belonging to another server configured to use the same
resource manager. This could occur in all versions of WebSphere
Application Server Liberty prior to V8.5.5.8.

PROBLEM CONCLUSION:                                             
The Liberty Transaction Recovery code was re-worked to close    
this timing window.                                             
                                                                
The fix for this APAR is currently targeted for inclusion in fix
pack 8.5.5.8.  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:  Fix applies to Editions:
Release 8.5
__ Application Server (Express or BASE)
__ Network Deployment (ND)
x_ Liberty Core
__ Edge Components
__ Developer

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 V1.4.3 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 Certain iFixes may require a newer version of the Installation Manager and the Installation Manager will inform you during the installation process if a newer version is required.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 Knowledge Center can provide details, if needed, on the use of the Installation Manager to apply the iFixes.
http://publib.boulder.ibm.com/infocenter/install/v1r4/index.jsp.  Shutdown WebSphere Application Server before applying the iFixes.  Restart WebSphere Application Server after applying the iFixes.

Directions to remove fix:  

The IBM Knowledge Center can provide details, if needed, on the use of the Installation Manager to remove the iFixes.
http://publib.boulder.ibm.com/infocenter/install/v1r4/index.jsp.  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: