Troubleshooting Persistent Cache Issues in Nginx
Despite modifying CSS files, nginx continues to serve outdated versions, indicating a caching problem. After unsuccessful restarts and web searches, users are left wondering how to resolve this issue.
Some articles recommend deleting the nginx cache directory (var/cache/nginx), but it may be non-existent on the server. This article explores a potential solution that has resolved the problem for users:
Disable Sendfile
According to user experience and the VirtualBox ticket system, the problem can be attributed to the "sendfile" configuration in nginx.conf being set to "on" even when caching is disabled. Sendfile, designed to efficiently transfer data between file descriptors, encounters difficulties when run in virtual machine environments, particularly VirtualBox.
Solution
Disabling the "sendfile" configuration resolves the issue, enabling the nginx server to serve static files using an alternative method that promptly reflects changes.
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