PI06819: PERFORMANCE ISSUE IN TRANSFORMERFACTORY OF PROVIDER DISPATCHER O F JAX-WS WEB SERVICES.

8.5.5.2: WebSphere Application Server V8.5.5 Fix Pack 2
8.5.5.3: WebSphere Application Server V8.5.5 Fix Pack 3
8.5.5.4: WebSphere Application Server V8.5.5 Fix Pack 4
8.5.5.5: WebSphere Application Server V8.5.5 Fix Pack 5
8.5.5.6: WebSphere Application Server V8.5.5 Fix Pack 6
8.5.5.7: WebSphere Application Server V8.5.5 Fix Pack 7
8.5.5.8: WebSphere Application Server V8.5.5 Fix Pack 8
8.5.5.9: WebSphere Application Server V8.5.5 Fix Pack 9
8.5.5.10: WebSphere Application Server V8.5.5 Fix Pack 10
8.5.5.11: WebSphere Application Server V8.5.5 Fix Pack 11
8.5.5.12: WebSphere Application Server V8.5.5 Fix Pack 12
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.15: WebSphere Application Server V8.5.5 Fix Pack 15
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
8.5.5.20: WebSphere Application Server V8.5.5.20
8.5.5.18: WebSphere Application Server V8.5.5 Fix Pack 18
8.5.5.19: WebSphere Application Server V8.5.5 Fix Pack 19
8.5.5.16: WebSphere Application Server V8.5.5 Fix Pack 16
8.5.5.21: WebSphere Application Server V8.5.5.21

APAR status

• Closed as program error.

Error description

• Performance profiling reveals several critical call stacks in
  the provider dispatcher, the stack traces like below:
  40, 1229, 1312931, 1135014075,
  J:org/apache/axis2/jaxws/utility/ConvertUtils.convert(Ljava/lang
  /Object;Ljava/lang/Class;)Ljava/lang/Object;,
  41, 1229, 2402703, 364063865,
  J:javax/xml/transform/FactoryFinder.find(Ljava/lang/String;Ljava
  /lang/String;)Ljava/lang/Object;,
  42, 1229, 418975, 304256993,
  J:javax/xml/transform/FactoryFinder.findJarServiceProvider(Ljava
  /lang/String;)Ljava/lang/Object;,
  43, 1229, 62021, 302386880,
  J:java/lang/ClassLoader.getResource(Ljava/lang/String;)Ljava/net
  /URL;,
  44, 1229, 2038721, 222072678,
  J:java/lang/ClassLoader.getResource(Ljava/lang/String;)Ljava/net
  /URL;,
  45, 38099, 5561019, 104391176,
  J:com/ibm/oti/vm/AbstractClassLoader.findResourceImpl(ILjava/lan
  g/String;)Ljava/net/URL;,
  46, 38099, 98830157, 98830157,
  N:java/util/zip/ZipFile.getEntry(JLjava/lang/String;Z)J,
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  IBM WebSphere Application Server users of   *
  *                  JAX-WS web services.                        *
  ****************************************************************
  * PROBLEM DESCRIPTION: There are several costly native         *
  *                      java/util/zip/ZipFile.getEntry calls    *
  *                      as well as java/io/File.<init> calls    *
  *                      which were invoked during the           *
  *                      creation of JAXP TransformerFactory     *
  *                      objects. These native calls impact      *
  *                      the provider dispatcher's performance.  *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  Costly native java/util/zip/ZipFile.getEntry calls as well as
  java/io/File.<init> were invoked during the creation of JAXP
  TransformerFactory objects, which is very expensive.
  

Problem conclusion

• To reduce the CPU consumption and for better performance, we
  cache the objects and reuse them.
  Set the following JVM property
  cacheTransformerFactory=true.
  Default value of this property is false.
  The following Information Center topic describes how to set
  a JVM property:
  http://pic.dhe.ibm.com/infocenter/wasinfo/v8r5/index.jsp?
  topic=/com.ibm.websphere.nd.iseries.doc/info/iseriesnd/ae/trun_j
  vm.html
  
  The fix for this APAR is currently targeted for inclusion in
  fix pack 8.5.5.2.  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 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

• R850 PSY

     UP