How to troubleshoot when the keepalive cache pages are not working as expected?
If the keepalive cache page is not effective, you can try the following solutions:
- Make sure the page is properly configured with keepalive cache. In the nginx configuration file, set the cache strategy for the page to proxy_cache_valid and specify the cache’s validity period. For example: proxy_cache_valid 200 304 1d; means caching responses with status codes 200 and 304 for 1 day.
- Check if the caching configuration of nginx is correct. You can confirm if there are any related cache error messages by checking nginx’s log file. Make sure the caching path of nginx is correctly configured and that nginx has read and write permissions for the cache files.
- Ensure that the correct caching-related fields are included in the response headers of the page. It is important to check if the response headers contain fields such as Cache-Control, ETag, Last-Modified, and that these fields are set correctly.
- Clear your browser cache. Sometimes the browser may cache old pages, causing the new keepalive cached pages to not take effect. You can try clearing your browser’s cache and then reloading the page.
- Check the dynamic content on the page. If the page contains dynamic content, it may prevent caching from being effective. You can try caching the dynamic content or changing the URLs of the dynamic content to avoid caching issues.
- If all the above methods do not work, you can try restarting the nginx service or updating the nginx version. Sometimes issues with cache not working properly could be caused by a bug in nginx, and updating to the latest version may resolve the problem.
If none of the above methods solve the issue, it may be necessary to more thoroughly examine the configuration of Nginx and the response headers of the page, or consider other potential reasons for the caching not working.
