Nginx one or two things (1)-Simple Image Server solution

Recently, people often ask how to upload pictures, what are the options to do better, but also see the practice of uploading pictures, but are not the best

Let's talk about the idea of uploading images and image servers today.

If it is a personal project or small Business Project, only 10 orwith people use small projects, you can use the following scenarios:

The user accesses the system, uses the upload picture function, then the picture uploads to your current project to be on the Tomcat server, under the/image, the upload succeeds after the user can directly access

Http://ip:port/project/images/xxx.jpg

This is not a problem when the user is low

When your business has grown, the volume of business has increased, the use of the project began to grow up, and found that the system is slowing down, then you consider the cluster, right?

So good, assuming you add a TOMCATB, performance improved a bit, the picture also successfully uploaded, do a load balancer, assuming that the picture uploaded tomcata (the user is not aware of)

When the second visit (regardless of the session sticky not sticky problem, assuming that it is shared), the user access to the TOMCATB, the picture is not, is a big fork,

Oh, my God! What's the matter, obviously just uploaded pictures did not have,

Just refresh it, hey! You got it again? What's the situation?

Backstage know what, but users do not know AH!!!

So the solution is this, tomcata and B upload to the image server, this user requests only access to the image server path, so there is no problem

Some people will ask the image server with what to build it?

Tomcat? Yes, but Tomcat is the main processing jsp better, picture files are static resources, processing performance general-like

Apache? Yes, pure C language development, no problem, but not good enough

Nginx? By the right, this is a relatively popular reverse proxy server, I have a brief introduction to the previous article (http://www.cnblogs.com/leechenxiang/p/5327086.html)

The theory of single-machine concurrent can reach 50,000, very much, the actual test is about 2w

Install the following plan to do, then the picture server is not a problem,

Of course, after uploading the image, you need to save the path address of the image to the database.

I have seen a set of e-commerce system picture upload is the adoption scheme is similar to 1, so no problem,

But, the picture actually uploaded to his meow MySQL some field of a table, your sister Ah, my God!

How can you do this, not to mention that the database does not have a partitioned partition index, OK, this is also a spit point of mine, who told me I have been involved in it?

Well, that's a lot of theory, and the next article will tell you exactly how to do it.

Nginx one or two things (1)-Simple Image Server solution