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This article mainly introduces "how to customize session storage mechanism to avoid session persistence". In daily operation, I believe many people have doubts about how to customize session storage mechanism to avoid session persistence. Xiaobian consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful for you to answer the doubts of "how to customize session storage mechanism to avoid session persistence"! Next, please follow the editor to study!

PHP server session is stored in the form of files, when the user visits too much, session files will be very large, and when the horizontal increase of the server, session files can not be synchronized, facing the problem of session persistence.

There are two solutions:

1. Take out a separate server to share session files using NFS or Samba file sharing, which can solve the problem that the session is out of sync during load balancing. (but can not solve the problem of efficiency, tens of thousands of session files, search will be slow)

2. Session stores the database, and other servers can solve the session problem by sharing the database server. At the same time, the database also solves the problem of file efficiency. The database can be expanded horizontally, and the problems of speed and quantity can be solved.

At this point, the study on "how to customize the session storage mechanism to avoid session persistence" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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