環(huán)境：Oracle 11.2.0.4 DG
故障現(xiàn)象：
客戶在備庫告警日志中發(fā)現(xiàn)GAP sequence提示信息：
Mon Nov 21 09:53:29 2016 Media Recovery Waiting for thread 1 sequence 12034 Fetching gap sequence in thread 1, gap sequence 12034-12078 Mon Nov 21 09:55:20 2016 FAL[client]: Failed to request gap sequence
GAP - thread 1 sequence 12034-12078 DBID 3493955325 branch 881855745 FAL[client]: All defined FAL servers have been attempted.
------------------------------------------------------------
Check that the CONTROL_FILE_RECORD_KEEP_TIME initialization
parameter is defined to a value that's sufficiently large enough to maintain adequate log switch information to resolve
archivelog gaps.
------------------------------------------------------------
修復過程：
- 1.查詢備庫SCN
- 2.確定主庫是否添加數(shù)據(jù)文件
- 3.備庫停止日志應用
- 4.主庫增量備份并傳輸?shù)絺鋷焐?/a>
-
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