WLS 5.1 and TX support

Question

          The Weblogic 5.10 documentation states:
          "WebLogic Server Version 5.1 is compliant with the JavaSoft EJB 1.1 specification."
          Yet elsewhere in the documentation it states:
          "The following sections describe EJBs in several transaction scenarios. Note that in all cases EJB transactions should be restricted to a single persistent store, because WebLogic Server does not provide a two-phase commit protocol. EJBs that engage in distributed transactions (transactions that make updates in multiple datastores) cannot guarantee that all branches of the transaction commit or roll back as a logical unit."
          Wait a minute. I thought EJB 1.1 specified that an EJB container must provide a transaction coordinator to support distributed two-phase commit across multiple EJB servers.
          From the spec:
          "Regardless whether an enterprise bean uses bean-managed or container-managed transaction demarcation,
          the burden of implementing transaction management is on the EJB Container and Server Provider.
          The EJB Container and Server implement the necessary low-level transaction protocols, such as the
          two-phase commit protocol between a transaction manager and a database system, transaction context
          propagation, and distributed two-phase commit."
          The spec goes on to show several distributed transaction use cases that must be supported by the EJB container.
          This "single repository" limitation of Weblogic severely limits my options.
          What am I missing?
          Greg
          

Answer 1

I used Loadrunner's WLS monitor while running some performance scripts on our application. I ended up relying on the WLS Console and some SNMP traps (using HP Openview to review data) in order to acurately guauge utilization of system resources...Regards,Steve