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The content of this article is to share with you the solutions when the PHP website encounters large traffic and high concurrency. It has a certain reference value. Friends in need can refer to it
Ordinary P4 servers can generally support up to 100,000 independent IPs per day. If the number of visits is greater than this, you must first configure a higher-performance dedicated server. Solve the problem, otherwise no matter how you optimize it, it will be impossible to completely solve the performance problem.
It is of course best to implement complete staticization of the front desk, which does not require access to the database at all. However, for websites that are frequently updated,
staticization often cannot satisfy certain functions.
Caching technology is another solution, which is to store dynamic data in cache files. Dynamic web pages directly call
these files without having to access the database. Both WordPress and Z-Blog use this method extensively. Caching technology. I
myself also wrote a Z-Blog counter plug-in, which is also based on this principle.
If it is indeed impossible to avoid access to the database, then you can try to optimize the query SQL of the database. Avoid using statements like
Select * from. Each query only returns the results you need, and avoids using it in a short period of time. A large number of SQL queries.
hotlinking of own pictures or files should be strictly restricted. Fortunately, currently you can simply refer to it. To control hot links, Apache itself can disable hot links through configuration. IIS also has some third-party ISAPIs that can achieve the same function. Of course, forging referrals can also be done through code to achieve hotlinking. However, currently there are not many people who deliberately forge referrals to hotlink.
You can ignore it or use non-technical means to solve it, such as on pictures. Add watermark.
Fourth, control the download of large files.
Fifth, use different hosts to divert the main traffic
Sixth, use traffic analysis and statistics software.
Install a traffic analysis and statistics software on the website, you can instantly know which places consume a lot of traffic and which pages
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