【翻译自mos文章】使用dbua升级时，需要手工设置CLUSTER_DATABASE参数么？

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在使用DBUA升级Oracle RAC数据库时，CLUSTER_DATABASE参数将自动设置为FALSE，无需手动修改。升级过程中，会记录参数变更的相关信息。

使用dbua升级时，需要手工设置CLUSTER_DATABASE参数么？
来源于：
Is Manual Setting Of CLUSTER_DATABASE Parameter Required For DBUA Upgrade? (文档 ID 741081.1)

适用于：
Oracle Server - Enterprise Edition - Version: 10.1.0.2 to 11.1.0.8
Information in this document applies to any platform.

目标：
When manually upgrading RAC databases, the parameter CLUSTER_DATABASE has to be set to FALSE. Is this required during upgrade using DBUA ?

解决方案：
DBUA will automatically set this parameter to FALSE even if it is enabled. You do not need to change the CLUSTER_DATABASE parameter when upgrading using DBUA. You should see information similar to the following in the DBUA trace.log, which confirms that this parameter has been changed:

[Thread-274] [12:56:2:742] [PreMigration.executeStepImpl:146]  Bounce the database in pre Upgrade
[Thread-274] [12:56:2:742] [Database.shutdownOPSDuringMigration:1631]  is Windows false
[Thread-274] [12:56:2:743] [Database.shutdownOPSDuringMigration:1632]  Database Version = 10.2.0.2.0
[Thread-274] [12:56:2:743] [Database.shutdownOPSDuringMigration:1635]  Set cluster_database=false

参考：
NOTE:259945.1 - Database Upgrade 8i To Oracle 9i Using DBUA Failed