PHP thread open File handle exception caused by 502 bad Gateway

PHP thread open File handle limited error 502 bad Gateway

The resources on the Internet are basically considered to be errors caused by the limited opening of a file handle by a PHP thread. The specific solution is as follows:

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1. Raise the file handle of the server open Open

/etc/security/limits.conf: (Increase)

* soft???????? 51200

*?????? nofile. 51200

# vi/etc/security/limits.conf? Plus
* Soft Nofile 51200
* Hard Nofile 51200

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2, increase the number of open Nginx process file

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Nginx.conf:worker_rlimit_nofile 51200;

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3, modify the php-fpm.conf file, the main need to modify 2 .

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Command Ulimit-n View the number of open files that are restricted, and the options in php-fpm.conf rlimit_files ensure that they are consistent with this value.

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? 10240

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51200

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4.

# Vi/etc/sysctl. conf?
Bottom add
fs.file-max=51200

Complete the above changes, restart PHP, the warning message no longer.

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The world is quiet, 502 bad Gateway.

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