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                [TOC] # OceanBase 內存結構 ![](https://img.kancloud.cn/b6/8b/b68b39c572110de04084be0d36ea76ba_2648x1328.png) 從上圖可以看到,OceanBase 數據庫占用了服務器的大量內存 (OBServer Total Memory),然后一部分用于自身系統運行(Memory Reserved For OBServer),一部分用于劃分給創建的租戶(Allocatable Memory For OBServer)。每個租戶等同于傳統數據庫的一個實例,不同租戶的內存模塊組成是一樣的,其內存又分為裝載增量數據的 MemStore(Tenant MemStore)以及 KVCache 緩存(Tenant Cache Memory)。
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