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Cloud Control: "Data Guard Internal Error" raised on Data Guard Performance Page (Doc ID 1484028.1)

Last updated on APRIL 03, 2020

Applies to:

Oracle Database - Enterprise Edition - Version and later
Enterprise Manager for Oracle Database - Version and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.


 When accessing the Data Guard Performance Page the Error

"Data Guard Internal Error : See the OMS log for details."

is raised. In the EMOMS.LOG-File we can find at the same Time:


2012-08-09 12:55:35,724 [EMUI_12_55_33_/console/database/dataguard] ERROR util.rec createRemoteEMDClient.2469 - DBVerifyRemoteOp.createRemoteEMDClient(): NULL URL! Remote EMD URL not loaded!
2012-08-09 12:55:35,731 [EMUI_12_55_33_/console/database/dataguard] ERROR em.dataguard onEvent.1889 - java.lang.NullPointerException
       at oracle.sysman.db.dg.util.StandbyTargetService.getEmdClient(
       at oracle.sysman.db.dg.ChartMetrics.getMetrics(
       at oracle.sysman.db.dg.ChartMetrics.updateData(
       at oracle.sysman.db.dg.ChartBean.initialize(
       at oracle.sysman.db.dg.DataguardController.setChartBean(
       at oracle.sysman.db.dg.DataguardController.onEvent(
       at oracle.sysman.db.adm.BaseController.handleEvent(
       at oracle.sysman.db.dg.DataguardController.handleEvent(



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