ORA-16139: media recovery required

ORA-16139: media recovery required
Cause: An error has occurred while performing a switchover.
Action: If you were switching a primary database to the standby role, the conversion was successful, but one or more errors occurred after the conversion completed. See the alert log for more information. You can proceed with switching the target standby database to the primary role, but you must address the errors reported at the old primary database before it can protect the new primary database. If you encountered this error while switching a physical standby database to the primary role, the switchover did not succeed because additional redo must be applied. Verify that redo apply is active and wait until the SWITCHOVER_STATUS column of the V$DATABASE dynamic performance view reports TO_PRIMARY or SESSIONS_ACTIVE before retrying the switchover.

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分类：大数据

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小智 2018-08-30 16:43

ORA-16139：需要介质恢复,
.原因：执行切换时发生错误。,
.操作：如果要将主数据库切换到备用角色，则转换成功，但转换完成后发生一个或多个错误。有关详细信息，请参阅警报日志。您可以继续将目标备用数据库切换到主角色，但必须解决在旧主数据库上报告的错误，然后才能保护新的主数据库。如果在将物理备用数据库切换到主角色时遇到此错误，则切换不会成功，因为必须应用额外的重做。验证重做应用是否处于活动状态，并等待V $ DATABASE动态性能视图的SWITCHOVER_STATUS列报告TO_PRIMARY或SESSIONS_ACTIVE，然后重试切换。,
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ORA-16139: media recovery required

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