PI70896: Liberty Server hang in termination after a hard failure on z/OS

Fixes are available

APAR status

Closed as program error.

Error description

If the server is terminated abnormally where the normal
server shutdown is skipped (ex. "kill -9 <server pid>"),
then some native threads may be in a z/OS PAUSE service.
These threads will not be terminated by LE.   The result is
that the server does not terminate and may continue to hold
resources such as ports and storage.

Local fix

Problem summary

****************************************************************
* USERS AFFECTED:  All users of IBM WebSphere Application      *
*                  Server Liberty for z/OS                     *
****************************************************************
* PROBLEM DESCRIPTION: Liberty Server hang in termination      *
*                      after a hard failure on z/OS            *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
If the server is terminated abnormally where the normal server
shutdown is skipped (ex. "kill -9 <server pid>"), then some
native threads may be in a z/OS PAUSE service.  These threads
will not be terminated by LE.   The result is that the server
does not terminate and may continue to hold resources such as
ports and storage.

Problem conclusion

Code has been added to manage a dedicated cleanup thread.  This
new cleanup thread will trigger cleanup routines that will
release known users of the z/OS PAUSE service that would have
hung up the termination of the server in the event of a hard
server failure.

The fix for this APAR is currently targeted for inclusion in fix
pack 16.0.0.4.  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
PI70896
Reported component name
LIBERTY PROF -
Reported component ID
5655W6514
Reported release
850
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2016-10-18
Closed date
2016-10-25
Last modified date
2016-10-25

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
LIBERTY PROF -
Fixed component ID
5655W6514

Applicable component levels

R850 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":"850","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
03 May 2022

Tips

PI70896: Liberty Server hang in termination after a hard failure on z/OS

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

R850 PSY

Document Information

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