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是否有办法使MongoDB更新操作立刻fsync到硬盘?
無法立即喔,,磁片寫操作預設是延遲執行的。寫操作可能在兩三秒(默認在60秒內)後到達磁片。例如,如果一秒內資料庫收到一千個對一個物件遞增的操作,僅刷新磁片 一次。(注意,儘管fsync選項在命令列和經過getLastError_old是有效的)
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