The role of Session deposit database

Session can be automatically saved to a file, used for reading. Why would you put the resulting session into the database, and what are the benefits of doing that?

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Session can be automatically saved to a file, used for reading. Why would you put the resulting session into the database, and what are the benefits of doing that?

1, strong stability, easy to recover from downtime
2, load balancing, make the business machine and session decoupling, session full service, large projects this is very important, can also be called distributed
3, security, relative to the file, the database has better security

In the current era of cloud computing, this decoupling can be very handy for deploying large businesses, specific benefits and implementations where you can search for distributed persistent session services

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