tibco ems 报如下错误的原因：
1、tibemsd.conf中关于数据库的部分配置有误
2、配置好tibemsd.conf 和stores.conf后，没有用ems schema tool导出表结构
3、stores.conf中配置的URL有误
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2012-03-15 17:49:13.633 Server rereading configuration.
2012-03-15 17:49:13.645 Recovering state, please wait.
2012-03-15 17:49:13.751 ERROR: Failed to lock store '$sys.failsafe' [ERRSTR = org.hibernate.exception.SQLGrammarException: could not load an entity: [com.tibco.tibems.tibemsd.internal.db.HBLock#1] ]
2012-03-15 17:49:13.753 ERROR: Server failed to recover state.
2012-03-15 17:49:15.455 Server shutting down.
2012-03-15 17:49:15.753 Active server 'tcp://7444' not found.
2012-03-15 17:49:15.754 Server is re-entering standby mode.
2012-03-15 17:49:15.758 Shutdown complete.