基于文件的数据暂存器：(默认)如果配置消息引擎使用基于文件的数据暂存器，则操作信息和消息将持久化到文件系统中，而不是数据库中。

File-based data store: (default) If the message engine is configured to use a file-based data store, operating information and messages are persisted to the file system instead of a database.

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本地公告的储存和索引现在是在一个定制的Xindice btree数据库上执行，比以前的基于文件系统的存储方案在性能上有了改进。

Local advertisement storage and indexing now performed with a customized Xindice btree database, resulting in improved performance over previous file system-based storage scheme.

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