Oracle12c R2注意事项: 因BUG生成大量的trace file 包含KRB: (rman module)
升级了Oracle 12cR2的同学,尤其是安装了2018 4月RU的版本(12.2.0.1.180417), 遇好检查下你的trace目录下是否生成了超大量的trace file,或单个超大的trace file文件,因为在这个版本下有两个原因很可能生成这些trace:
1. Trace files generation with message “AUTO SGA: kmgs_parameter_update_timeout gen0 0 mmon alive 1”.
2. Trace files generated from RMAN module with KRB messages.
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