Application profiling interoperability
Use application profiling with 5.x compatibility mode or in a clustered environment with mixed product versions and mixed platforms can affect its behavior in different ways.
The effect of 5.x Compatibility Mode
Application profiling supports forward compatibility. Application profiles created in previous versions of WAS (Enterprise Edition 5.0 or WebSphere Business Integration Server Foundation 5.1) can only run in WAS v6 or later if the Application Profiling 5.x Compatibility Mode attribute is turned on. If the 5.x Compatibility Mode attribute is off, Version 5 application profiles might display unexpected behavior.
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For information about the 5.x Compatibility Mode, see the topic, Application profile service settings..
Similarly, application profiles that you create using the latest version of WAS are not compatible with Version 5 or earlier versions. Even applications configured with application profiles run on Version 6.x servers with the Application Profiling 5.x Compatibility Mode attribute turned on cannot interact with applications configured with profiles run on Version 5 servers.
If we select the 5.x Compatibility Mode attribute on the Application Profile Service's console page, then tasks configured on J2EE 1.3 applications are not necessarily associated with units of work and can arbitrarily be applied and overridden. This is not a recommended mode of operation and can lead to unexpected deadlocks during database access. Tasks are not communicated on requests between applications that are running under the Application Profiling 5.x Compatibility Mode and applications that are not running under the compatibility mode.
For a Version 6.x client to interact with applications run under the Application Profiling 5.x Compatibility Mode, set the appprofileCompatibility system property to true in the client process. We can do this by specifying the -CCDappprofileCompatibility=true option when invoking the launchClient command.
Considerations for a clustered environment
In a clustered environment with mixed product versions and mixed platforms, applications configured with application profiles might exhibit unexpected behavior because previous versions of server members cannot support the application profiling of Version 6.x.
If a clustered environment contains both Version 5.x and 6.x server members, and if any applications are configured with application profiles, the Application Profiling 5.x Compatibility Mode attribute must be turned on in Version 6 server members. Still, this cluster can only support Version 5 application profiling behavior. To support applications configured with Version 6 application profiles in a cluster environment, all server members in the cluster must be at the Version 6.x level.
WebSphere Application Server Enterprise Edition Version 5.0.2
If we use WebSphere Application Server Enterprise Edition 5.0.2, we must apply WebSphere Application Server Version 5 service pack 7 or later service pack to enable Application Profiling interoperability.
Related tasks
Related information:
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Reference topic