PK82147: INTERMITTENT DELAY RETURNING RESPONSE TO A CLIENT REQUEST WHEN SERVERIOTIMEOUT IS SET TO NON-ZERO VALUE

Fixes are available

APAR status

Closed as program error.

Error description

When customer uses a non-zero value for the ServerIOTimeout
option, responses to client requests are intermittently taking
an excessive amout of time to be returned to the client. In fact
the responses are being returned when the ServerIOTimeout value
pops.

Local fix

Problem summary

****************************************************************
* USERS AFFECTED:  Users of the WebSphere Application Server   *
*                  V6.1 Plugin with SSL and  on all  platforms.*
****************************************************************
* PROBLEM DESCRIPTION: Responses may be delayed for a fixed    *
*                      period of 30 seconds or the current     *
*                      AppServer KeepAlive timeout             *
****************************************************************
* RECOMMENDATION:  Apply this fix if a transport in            *
*                  plugin-cfg.xml uses both SSL and            *
*                  ServerIOTimeout.                            *
****************************************************************
If a non-zero ServerIOTimeout is used with an SSL transport in
plugin-cfg.xml, the WebSphere Plugin may block at the end of a
response under the false impression that data isn't currently
available.   The Plugin is not unblocked until the Application
Server closes the HTTP/1.1 keepalive connection, at which
point the remaining data is acknowledged.

Corresponding Application Server traces show that all data was
flushed without delay.  TCP packet captures show the Plugin
didn't unblock until an SSL close_notify or TCP FIN was
received.

Problem conclusion

The WebSphere Plugin was updated to exhaust all data potentially
buffered by the security library before performing a poll() or
select() on the underlying socket.

APAR PK82147 is currently targeted for inclusion in Service
Level (Fix Pack) 6.1.0.27 of WebSphere Application Server V6.1
of the WebSphere Plugin.

Please refer to URL:
//www.ibm.com/support/docview.wss?rs=404&uid=swg27006970
for Fix Pack availability.

Temporary fix

Comments

APAR Information

APAR number
PK82147
Reported component name
WEBSPHERE FOR Z
Reported component ID
5655I3500
Reported release
610
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2009-03-09
Closed date
2009-06-23
Last modified date
2009-10-03

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

PK82553 PK84363 PK89705 PK89706

Fix information

Fixed component name
WEBSPHERE FOR Z
Fixed component ID
5655I3500

Applicable component levels

R610 PSY UK49671
UP09/09/21 P F909

Fix is available

Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.

[{"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":"6.1","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
29 December 2021

Tips

PK82147: INTERMITTENT DELAY RETURNING RESPONSE TO A CLIENT REQUEST WHEN SERVERIOTIMEOUT IS SET TO NON-ZERO VALUE

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

R610 PSY UK49671

Fix is available

Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.

Document Information

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