PK94494: INTERMITTENT SLOW WEB SERVICES PERFORMANCE WHEN INVOKING JAX-RPC or JAX-WS WEB SERVICES FROM WEBSPHERE APPLICATION SERVER

Fixes are available

APAR status

Closed as program error.

Error description

When WebSphere Application Server functions as a JAX-RPC or
JAX-WS webservice client, an intermittent web service
performance problem can result.

The delay occurs after the client-side JAX-RPC handler
(if present) is invoked and before the actual SOAP message is
sent to the provider.  Because the delay occurs in the IBM web
services engine, this problem can be difficult to detect.

Depending on the quality of service coded into the application
itself, there might be application related timeouts which can
occur.  However, the problem can occur without the presence of
any exceptions or errors logged to the SystemOut.log.


A com.ibm.ws.webservices.engine.transport.*=all trace will show
entries similar to these which repeat:

[8/19/09 18:08:29:658 GMT] 00000047 OutboundConne 1   Enter:
WSWS3595I: Current pool size: 25. Connections-in-use size: 0.
Configured pool size: 25


In addition, that same trace spec will show long delays in
executing the .findGroupAndGetConnection() method:

[8/19/09 18:08:03:428 GMT] 00000047 OutboundConne >
OutboundConnectionCache.findGroupAndGetConnection()
WAITING_THREADS_THRESHOLD is 5 Entry

<WSWS3595I repeats in between>

[8/19/09 18:08:38:358 GMT] 00000047 OutboundConne <
OutboundConnectionCache.findGroupAndGetConnection() Exit

Local fix

- Reduce the
'com.ibm.websphere.webservices.http.connectionPoolCleanUpTime'
from the default of 180 to 120 seconds
- Increase the max connections
'com.ibm.websphere.webservices.http.maxConnection' property from
default of 25 to 50.
This will also require increasing the web container thread pool
size to 100.

This page from the Information Center contains the details:
HTTP transport custom properties for Web services applications
http://publib.boulder.ibm.com/infocenter/wasinfo/v6r1/topic/com.
ibm.websphere.nd.doc/info/ae/ae/rwbs_httptransportprop.html

Problem summary

****************************************************************
* USERS AFFECTED:  All users of IBM WebSphere Application      *
*                  Server V6.1 and V7.0 JAX-RPC and JAX-WS     *
*                  client applications                         *
****************************************************************
* PROBLEM DESCRIPTION: Unnecessary connection delays can       *
*                      occur in the WebSphere Application      *
*                      Server web services client.             *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
Connection delays in the WebSphere Application Server web
services client can result in poor web service request
performance.

Problem conclusion

Improved the recently used connection management to prevent
repeated connection delays.

This APAR addresses this problem for JAX-RPC in V6.1 and V7.0.
This APAR addresses this problem for JAX-WS in V7.0.

PK97532 addresses the JAX-WS problem in the WebSphere
Application Server V6.1 Feature Pack for Web Services.

The fix for this APAR is currently targeted for inclusion in
fix pack 6.1.0.29 and 7.0.0.9.  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
PK94494
Reported component name
WEBS APP SERV N
Reported component ID
5724H8800
Reported release
700
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2009-08-21
Closed date
2009-10-08
Last modified date
2009-10-08

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

PK97532

Fix information

Fixed component name
WEBS APP SERV N
Fixed component ID
5724H8800

Applicable component levels

R61A PSY
UP
R61H PSY
UP
R61I PSY
UP
R61P PSY
UP
R61S PSY
UP
R61W PSY
UP
R61Z PSY
UP
R700 PSY
UP

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.0","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
29 December 2021

Tips

PK94494: INTERMITTENT SLOW WEB SERVICES PERFORMANCE WHEN INVOKING JAX-RPC or JAX-WS WEB SERVICES FROM WEBSPHERE APPLICATION SERVER

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

R61A PSY

R61H PSY

R61I PSY

R61P PSY

R61S PSY

R61W PSY

R61Z PSY

R700 PSY

Document Information

Share your feedback

Need support?