PK95530: WSDL DefinitionImpl objects contribute to high memory usage within a JAX-RPC application.

Fixes are available

APAR status

Closed as program error.

Error description

A customer migrated an application containing a large number
of JAX-RPC web services from WebSphere Application Server V5.1
to V6.1.

The customer discovered that the application running on the
V6.1 WebSphere Application Server required more memory.  The
HeapAnalyzer tool was used to analyze the phd files.

The analysis revealed that the application on the V6.1
WebSphere Application Server contained a large number of
com.ibm.ws.webservices.metadata.ClientServiceMetaData objects.
The objects were the owners of a large number of WSDL
DefinitionImpl objects.  The WSDL DefinitionImpl objects
required over 130M of memory.

Local fix

```
N/A
```

Problem summary

****************************************************************
* USERS AFFECTED:  IBM WebSphere Application Server V6.1 and   *
*                  V7.0 users of JAX-RPC                       *
****************************************************************
* PROBLEM DESCRIPTION: High memory usage of WSDL               *
*                      DefinitionImpl objects in a JAX-RPC     *
*                      application                             *
****************************************************************
* RECOMMENDATION:  Intall a fixpack containing this APAR       *
****************************************************************
A customer migrated an application containing a large number
of JAX-RPC web services from WebSphere Application Server V5.1
to V6.1.

The customer discovered that the application running on the
V6.1 WebSphere Application Server required more memory.  The
HeapAnalyzer tool was used to analyze the phd files.

The analysis revealed that the application on the V6.1
WebSphere Application Server contained a large number of
com.ibm.ws.webservices.metadata.ClientServiceMetaData objects.

The objects were the owners of a large number of WSDL
DefinitionImpl objects.  The WSDL DefinitionImpl objects
required over 130M of memory.

Problem conclusion

Changes are made in the JAX-RPC runtime to use soft references
to WSDL DefinitionImpl objects.  These soft references allow
the runtime to purge and recreate the objects, thus avoiding
high memory usage.

The fix for this APAR is currently targeted for inclusion in
fix packs 6.1.0.33, 7.0.0.13.  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
PK95530
Reported component name
WEBS APP SERV N
Reported component ID
5724H8800
Reported release
61W
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2009-09-04
Closed date
2010-05-12
Last modified date
2010-05-12

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
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":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"6.1","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
24 October 2021

Tips

PK95530: WSDL DefinitionImpl objects contribute to high memory usage within a JAX-RPC application.

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

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