[重慶思莊每日技術分享]-19c資料庫PGA設定過高出現告警

19c資料庫啟動後，發現alert日誌裡面出現告警：

2021-04-26T09:14:24.671750+08:00

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PGA_AGGREGATE_TARGET specified is high

Errors in file /u01/app/oracle/diag/rdbms/orcl/orcl1/trace/orcl1_ora_13774.trc  (incident=144013):

ORA-00700: soft internal error, arguments: [pga physmem limit], [14574157824], [8228128153], [], [], [], [], [], [], [], [], []

Incident details in: /u01/app/oracle/diag/rdbms/orcl/orcl1/incident/incdir_144013/orcl1_ora_13774_i144013.trc

根據提示，PGA設定過高，如果SGA+PGA>OS Memory * 80%,啟動時則會給出錯誤警告（僅在19c版本中給出錯誤告警）

處理方法顯而易見了，將PGA調小，使得SGA+PGA

參考文件：Doc ID 2610312.1