The purpose of the WebContainer interval SMF record is to record
activity within a WebContainer running inside a WebSphere Application Server
for z/OS transaction server.
The Web Container acts as a Web server handling HttpSessions
and servlets. The EJB container is not aware of the purpose of the WebContainer
activity record and only records that the EJB has been dispatched, but does
not gather any of the detailed information, such as HttpSessions, Servlets,
and their respective performance data. A single WebContainer record is created
for each Web container.
In addition to data that is associated with
an individual activity, there are some cases of Web container work that are
performed outside the scope of an individual request. For example, some instances
of http session finalization and http session invalidation are performed asynchronously.
In such a case a WebContainer interval record would record this data
WebContainer
SMF recording is activated and deactivated along with the activation and deactivation
of SMF recording for the J2EE container.