Enterprise bean and EJB container troubleshooting tips
If you are having problems starting an Enterprise JavaBeans (EJB) container, or encounter
error messages or exceptions that are generated by an EJB container,
follow these steps to resolve the problem:
- Use the administrative console to verify that the application server which hosts the container is running.
Browse the logs for the application server which hosts the container. Look for the message server server_name open for e-business in the server log files. If the message does not display, or if you see the message, problems occurred during startup, browse the server log files for details.
Browse the JVM log files for the application server which hosts the container. Look for the message server server_name open for e-business in the SystemOut.log. If the message does not display, or if you see the message, problems occurred during startup, browse the SystemErr.log for details.
Browse the system log files for the application server which hosts the container.
Enable tracing for the EJB container component, by using the following trace specification EJBContainer=all=enabled. Follow the instructions for dumping and browsing the trace output to narrow the origin of the problem.
Note: 這個主題參照一或多個應用程式伺服器日誌檔。
此外,在分散式和 IBM® i 系統上,另外也建議您可以配置伺服器來使用「高效能可延伸記載 (HPEL)」日誌和追蹤基礎架構,而不使用 SystemOut.log、SystemErr.log, trace.log 及 activity.log 檔案。HPEL 與原生 z/OS® 記載機能也可以一起使用。如果您使用 HPEL,則可以從伺服器設定檔 bin 目錄,利用 LogViewer 指令行工具來存取您所有的日誌和追蹤資訊。請參閱有關利用 HPEL 疑難排解應用程式的資訊,以取得更多使用 HPEL 的相關資訊。
If none of these steps solves the problem, check to see if the problem is identified and documented in the following topics:Diagnosing and fixing problems: Resources for learning. If you do not see a problem that resembles yours, or if the information provided does not solve your problem, refer to the troubleshooting help for further assistance.
IBM Support has documents that can save you time gathering information to resolve this problem. Before opening a PMR, refer to one of the EJB MustGather documents.