nginx proxy has data truncation problem nginx apache nginx php nginx rewrite

The nginx reverse proxy (Reverse Proxy) method uses a proxy server to accept connection requests on the Internet, then forwards the request to the server on the internal network, and returns the results obtained from the server to the client requesting a connection on the Internet. , at this time the proxy server appears as a reverse proxy server to the outside world.
When the returned data is too large, the data may be truncated. The specific reasons and solutions are:
1 Directly accessing server B, normal
2 Accessing non-PHP content, normal
3 Turning off compression does not solve the problem, and has nothing to do with compression.
Later, I checked two articles and solved the problem. It was an issue with the read and write permissions of the fastcgi_temp directory. Symptoms: A large number of errors similar to the following appear in the Nginx error log:
2013/08/25 00:41:28 [crit] 32763#0: *5439 open() "/Data/apps/nginx/fastcgi_temp/5/02 /0000000025" failed (13: Permission denied) whil
e reading upstream, client: 203.171.237.2, server: www.aslibra.com, request: "GET /thread.html HTTP/1.0", upstream: "f
astcgi: //127.0.0.1:9000", host: "www.aslibra.com", referrer: "http://www.aslibra.com/f.html"
Refer to the solution in the article:
Judging from this sentence it is possible The generated file is too large and needs to be stored in the form of a file, and nginx does not have permission to read it. So chmod -R 764 /usr/local/nginx/fastcgi_temp/ solved the problem.

The above introduces the problem of data truncation in nginx proxy, including nginx content. I hope it will be helpful to friends who are interested in PHP tutorials.