PQ79846: LOOP OCCURS IF TCP/IP IS BROUGHT DOWN WITHOUT BRINGING DOWN WEBSPHERE.

 A fix is available

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APAR status
Closed as program error.

Error description
Customer experiences a loop if he brings down tcp/ip
and does not bring down Websphere.  The looping occurred
for 24 hours showing high cpu.
Local fix
Recycle Websphere Application Server when you recycle
TCP/IP
Problem summary
****************************************************************
* USERS AFFECTED: All users of WebSphere Application Server    *
*                 V5.0 for z/OS                                *
****************************************************************
* PROBLEM DESCRIPTION: If WebSphere it running, and TCPIP is   *
*                      stopped, WebSphere falls into a loop in *
*                      the discovery code. If debug is         *
*                      enabled, the message: ADMD0020W: Tcp    *
*                      socket failure in receiving package:    *
*                      EDC5122I Input/output error.            *
*                      (errno2=0x74687308) is found in the     *
*                      logs.                                   *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
WebSphere falls into a loop, in the Discovery code when TCPIP
is stopped.  WebSphere attempts to bind to a local port.
A retry limit was added, so after three attempts, the Unicast
Server shuts down.
Problem conclusion
Code was added to Discovery to shutdown the UnicastServer after
three failed attempts to bind.

APAR PQ79846 is associated with SERVICE LEVEL W502000 of
WebSphere Application Server V5.0 for z/OS.
Temporary fix Comments
APAR information
APAR number PQ79846
Reported component name WEBSPHERE FOR Z
Reported component ID 5655I3500
Reported release 500
Status CLOSED PER
PE NoPE
HIPER NoHIPER
Special Attention NoSpecatt
Submitted date 2003-10-20
Closed date 2003-12-07
Last modified date 2004-01-03

APAR is sysrouted FROM one or more of the following:

APAR is sysrouted TO one or more of the following:

Modules/Macros
BBOUBINF          

Publications Referenced

Fix information
Fixed component name WEBSPHERE FOR Z
Fixed component ID 5655I3500

Applicable component levels
R500 PSY UQ82903    UP03/12/15 P F312

  Fix is available
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Document Information


Current web document: swg1PQ79846.html
Product categories: Software > Application Servers > Distributed Application & Web Servers > WebSphere Application Server for z/OS
Operating system(s):
Software version: 500
Software edition:
Reference #: PQ79846
IBM Group: Software Group
Modified date: Jan 3, 2004