11g ADG 出現FAL[client,USER]:error 12154 connect to orcl for fetching gap
前幾天客戶反映ADG備庫出現報錯具體內容如下:
FAL[client,USER]:error 12154 connect to orcl for fetching gap sequence,
嘗試對備庫進行進行修復,重新應用日誌,還是無法恢復正常,
經查詢主庫 u01空間滿了導致資料庫無法連線
需要主庫進行以下查詢,並反饋查詢結果,進一步分析問題原因:
備庫查詢gap
主庫查詢已經被備份收走了。
rman> list archivelog sequence between 6243 and 6363 thread 1;
rman> list archivelog sequence between 9485 and 9592 thread 2;
rman> list archivelog sequence between 8487 and 8606 thread 3;
--查詢已經在備份收走
list backup of archivelog sequence between 6243 and 6363 thread 1;
--後續建議做下基於scn的增量備份,傳輸到備庫應用可以追平。
目前備庫的恢復scn為12858759049725
主庫操作如下:
BACKUP INCREMENTAL FROM SCN 12858759049725 DATABASE FORMAT '/data/sxeomsdb_scn_%U' tag 'For Standby Gap';
將備份複製備庫使用
RECOVER DATABASE NOREDO進行恢復。
恢復完成以後需要還原一下控制檔案,然後open,重新應用日誌。
詳細的步驟在部落格
http://blog.itpub.net/31547066/viewspace-2285677/
來自 “ ITPUB部落格 ” ,連結:http://blog.itpub.net/31547066/viewspace-2646756/,如需轉載,請註明出處,否則將追究法律責任。
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