(FAQ)Oracle进入静默模式导致EAS Cloud用户无法操作
原因分析： 有数据库服务器操作权限的人员，在对数据库进行某种维护操作时，使Oracle进入了静默模式。而Oracle一旦进入静默模式，在解除之前，除了SYS用户以外，其他用户都会被禁止连接数据库。一种可能的操作是在系统运行期间进行了EM配置操作引起。 解决方法： 步骤 1 Kill the emca command 步骤 2 Connect to the database with SYS account through SQL*Plus SQL > alter system unquiesce; 相关日志： 客户端日志： 下午3:24出现无法使用系统的情况，异常信息显示问题原因是无法获取数据库连接，即无法连接数据库。 [2010-02-03 15:24:30,247 INFO]error! com.kingdee.eas.base.permission.UserException: 获取用户相关信息失败！请查看服务器日志，并确认是否数据库设置错误或者版本不匹配！ …… Caused by: javax.resource.spi.ResourceAllocationException: Resource unavailable at com.apusic.connector.cxmgr.ConnectionPool.getConnection(Unknown Source) at com.apusic.connector.cxmgr.ConnectionManagerImpl.allocateConnection(Unknown Source) …… 数据库alert日志： … Wed Feb 3 14:20:38 2010 Database in quiesce mode ... Wed Feb 3 16:58:01 2010 Shutting down instance: further logons disabled Wed Feb 3 16:58:01 2010 Stopping background process CJQ0 Metalink相关说明： Running EMCA Results in Database quiesce And No New Connections or Operations Can Be Performed During the DB Control Repository Creation [ID 375946.1] Cause ... Therefore it is important to understand that running these commands may/will cause the database to be unavailable during the time that the repository is being dropped and should not be run on a production database unless you are fully aware of the possible impact to database availability and have planned for this eventuality 关键字： 宕机, Resource unavailable, EM配置,Oracle静默模式, quiesce mode