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MongoDB 3.0 new features MMAPV1 (default engine)/wiredtiger engine comparison

Source: Internet
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Wiredtiger

MongoDB itself owns the MMAPv1 engine, and in version 3.0 It added the previously acquired Wiredtiger storage engine technology.

through Wiredtiger , MongoDB 3.0 implements the Document-level concurrency control (Concurrency Control), thus greatly improving the write load under large concurrency .

Users can choose the compression ratio of their own storage data, MongoDB 3.0 provides the maximum compression rate of 80% , but the higher the compression rate, the more time cost of data processing, the user can weigh the application themselves. MMAPv1 Enhanced concurrency control at the collection (collection) level start Wiredtigermongod--storageengine wiredtiger Wiredtiger VS MMAPv1

MongoDB 3.0 new features MMAPV1 (default engine)/wiredtiger engine comparison

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