升级到Active IQ Unified Manager 9.7P1后、无法加载它、并显示错误："Unified Manager无法加载。请稍后重试或联系您的系统管理员"

适用场景

Active IQ Unified Manager 9.7P1 (UM)

问题描述

• 升级成功完成
• 升级后、尝试访问GUI时出现错误 Unified Manager cannot be loaded. Try again later or contact your system administrator
• 然后刷新页面 404 - Not Found
• 此错误位于中 server_mega.log
2020-08-11 12:56:43,933 ERROR [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] (noncontinuous-event-purge-scheduler-0) (conn=8) Table 'ocum.managementstation' doesn't exist
2020-08-11 13:00:00,165 ERROR [stderr] (alert-30) Exception in thread "alert-30" java.lang.NullPointerException
2020-08-11 13:00:00,174 ERROR [stderr] (alert-31) Exception in thread "alert-31" java.lang.NullPointerException