PI82298: WAS CONTROLLER REGION ABENDS WITH AB/S0DC3 PRCS/03080002 AFTER MODIFY RESUMELISTENERS

Fixes are available

APAR status

Closed as program error.

Error description

There is a timing window that can cause an abendDC3 RC 03080002
after a Modify RESUMELISTENERS is done.  The issue is when a
new connection is being accepted and a new accept is issued on
the listener socket right around the same time as the Modify
PAUSELISTENERS, the new accept can fail.  In response to an
accept failure, a repeating 15 second timer to reconnect is
started (with the idea that there is a TCP/IP problem and we
need to retry the accept at a later time when TCP/IP recovers).
 In this case, however, TCP/IP is fine since the listener
socket was being closed by the Modify PAUSELISTENERS.  15
seconds later the timer fires, and since there is not a TCP/IP
problem, it reactivates the listener.  When the Modify
RESUMELISTENERS is done later on, the abendDC3 RC 03080002
occurs because the listener is already active with an accept on
it.

Local fix

Problem summary

****************************************************************
* USERS AFFECTED:  All users of IBM WebSphere Application      *
*                  Server V8.0 for z/OS                        *
****************************************************************
* PROBLEM DESCRIPTION: WebSphere Application Server for        *
*                      z/OS controller abends with a           *
*                      ABENDDC3/ABENDSDC3 reason code          *
*                      03080002 after a modify                 *
*                      resumelisteners command is issued.      *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
There is a timing window that can cause an abendDC3 RC 03080002
after a Modify RESUMELISTENERS is done.  The issue is when a
new connection is being accepted and a new accept is issued on
the listener socket right around the same time as the Modify
PAUSELISTENERS, the new accept can fail.  In response to an
accept failure, a repeating 15 second timer to reconnect is
started (with the idea that there is a TCP/IP problem and we
need to retry the accept at a later time when TCP/IP recovers).
In this case, however, TCP/IP is fine since the listener
socket was being closed by the Modify PAUSELISTENERS.  15
seconds later the timer fires, and since there is not a TCP/IP
problem, it reactivates the listener.  When the Modify
RESUMELISTENERS is done later on, the abendDC3 RC 03080002
occurs because the listener is already active with an accept on
it.

Problem conclusion

Updated the stop code to not create a timer when a modify
pauselisteners has been issued.

The fix for this APAR is currently targeted for inclusion in
fix pack 8.0.0.14, 8.5.5.13 and 9.0.0.6. 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
PI82298
Reported component name
WEBSPHERE FOR Z
Reported component ID
5655I3500
Reported release
800
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2017-05-30
Closed date
2017-08-10
Last modified date
2017-08-10

APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:

Fix information

Fixed component name
WEBSPHERE FOR Z
Fixed component ID
5655I3500

Applicable component levels

R800 PSY
UP

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SS7K4U","label":"WebSphere Application Server for z\/OS"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"800","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
04 May 2022

Tips

PI82298: WAS CONTROLLER REGION ABENDS WITH AB/S0DC3 PRCS/03080002 AFTER MODIFY RESUMELISTENERS

Fixes are available

Subscribe

APAR status

Closed as program error.

Error description

Local fix

Problem summary

Problem conclusion

Temporary fix

Comments

APAR Information

APAR number

Reported component name

Reported component ID

Reported release

Status

PE

HIPER

Special Attention

Submitted date

Closed date

Last modified date

APAR is sysrouted FROM one or more of the following:

APAR is sysrouted TO one or more of the following:

Fix information

Fixed component name

Fixed component ID

Applicable component levels

R800 PSY

Document Information

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