Recover Database Until

The main content of this paper comes from MongoDB official blog, supplemented by Nosqlfan, this paper analyzes the traditional distributed cache system, and points out that it will bring great pressure to the database in cache reconstruction. and analyzes how MongoDB's mmap scheme avoids this problem. The following diagram of the architecture, in the database front-end with a distributed cache (such as our common memcached), so that the client to access the first lookup Cache,cache not hit the read the database and cache the structure in CAC ...

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The blockchain as the underlying technology in the field of bitcoin has not been well known to the public until the article "The promise of the blockchain: The trust machine" by The Economist proposes that blockchain technology will be far-reaching at all levels. After the influence of human society, the concept of blockchain began to ignite.