Issue PHP critical error on Centos not on Debian, same config

[MicheleP]

Hi
I've a php soap server, on a server with Centos
On this I need to parse the response with a function Parse_function
ob_start("Parse_function");
whatever php version or apache/ngnix application, get always the same error:
23893#0: *320074 upstream prematurely closed FastCGI request while reading upstream

And there is no problem on the code, also for a simple response with "Hallo" (no elaborations, no long operations that could require a different timeout, no query, no nothing...) the server breaks

But (my last test) the same solution on a server with Debian works great! As it is suppose to do.
Why??
There are differences between the two server versions? There is a solution?
It is important
Thanks

 

[MicheleP]

PHP version is 7 (tested all 7.3... and 7.4)

 

[Fabian H]

Have you tried with PHP-FPM instead of PHP-FastCGI?

 

[MicheleP]

Hi, yes, then the error change in this:
31871#0: *366111 upstream prematurely closed connection while reading upstream

 

[Fabian H]

Please try to increase the timeouts for nginx and test again:

proxy_connect_timeout 180s;
proxy_send_timeout 180s;
proxy_read_timeout 180s;
fastcgi_send_timeout 180s;
fastcgi_read_timeout 180s;

 

[MicheleP]

in Apache & nginx Settings, right?
done
same error
19018#0: *367849 upstream prematurely closed connection while reading upstream

 

[Fabian H]

Could you please try the solution given there:

https://support.plesk.com/hc/en-us/articles/360019821713-Uploading-large-files-over-PHP-to-website-on-Plesk-for-Linux-server-fails-upstream-prematurely-closed-connection-while-reading-response-header-from-upstream

 

[MicheleP]

done, same error
19018#0: *368941 upstream prematurely closed connection while reading upstream

The problem is not only on this server, I've tried another server with centos, same thing

 

[MicheleP]

However I think it's not a timeout problem, there are no operations or scripts that could go in timeout, seems to me there is a problem with php on centos with the ob_start function