Shulou(Shulou.com)06/03 Report--

After purchasing the CDN service, users will be more concerned about the actual effect in the process of using it. First of all, make sure that it has been activated successfully, and then follow the basic steps to add accelerated domain names and configure CNAME. After all, you can test whether the CDN acceleration is successful. What are the common cdn problems for you today? How to solve it?

What are the answers to common cdn questions? In the process of using cdn, users will inevitably encounter problems of one kind or another. A list of common cdn questions on a platform, hoping to be helpful to everyone.

What files can be put on CDN?

CDN is designed to speed up the user access experience, so files stored on CDN should be small, preferably no more than 500K in size. There is no limit to the type of files to be stored. Static images such as jpg, gif, png,flash files, js and css files can be stored on CDN.

How do I view files uploaded to CDN?

1. You can upload files locally to CDN through the FTP upload channel. Developers can use the lftp command that comes with FTP CVM to view directories and files.

two。 Files can be uploaded locally to CDN through the SVN upload channel. Developers can view the directories and files in the CDN SVN repository directly through the "Repro browser" command of the SVN client.

Why do you sometimes see 302 jumps in CDN when grabbing bags?

If the application itself does not set the jump, and there is a 302 jump when accessing the CDN file, this situation is hijacked. For some purposes, individual small operators will route and cache some data locally, and when some URL is detected, they will directly jump to their own cached data instead of transmitting the request to the destination server normally.

What if the CDN node file cannot be accessed?

1. To verify whether the url of the file is incorrect, you can check the deployment directory and file name of svn.

two。 If the uploaded file is a new file, the node distribution will be completed within 10 minutes. If you still do not see the update after 20 minutes, you can grab the access packet through httpwatch, and then contact the operation and maintenance support to help locate the location.

3. If the file is updated with the same name, it usually needs to be updated within 30 minutes due to problems such as node cache and user cache. If you find that it has not been updated in more than 30 minutes, you can grab the access packet through httpwatch, and then contact the operation and maintenance support to assist in positioning.

If there is anything else you need to know, you can find our CDN technical engineer on the official website. CDN technical engineer has more than ten years of experience in the industry, so it will be more detailed and professional than the editor's answer. Official website link www.yisu.com

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