PHP FPM 除錯

recv() failed (104: Connection reset by peer) while reading response header from upstream

Nginx 錯誤 Log

在 nginx 發現 php-fpm.sock 的錯誤

2018/10/24 03:47:05 [error] 1231#1231: *324 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 172.31.22.62, server: _, request: "POST /post/article HTTP/1.1", upstream: "fastcgi://unix:/run/php/php7.1-fpm.sock:", host: "kejyun.com"

PHP 錯誤 log

在 php fpm error log 發現 pm.max_children setting (5), consider raising it 的錯誤

sudo vim /var/log/php7.1-fpm.log

[24-Oct-2018 01:09:33] WARNING: [pool www] server reached pm.max_children setting (5), consider raising it
[24-Oct-2018 07:20:16] WARNING: [pool www] server reached pm.max_children setting (5), consider raising it
[24-Oct-2018 07:43:58] WARNING: [pool www] server reached pm.max_children setting (5), consider raising it
[24-Oct-2018 08:27:52] WARNING: [pool www] server reached pm.max_children setting (5), consider raising it

提高請求中斷時間（request_terminate_timeout）

sudo vim /etc/php/7.1/fpm/pool.d/www.conf

request_terminate_timeout = 300

提高 Server fastcgi read timeout

vim /etc/nginx/sites-available/kejyun.com

location ~ \.php$ {
    fastcgi_connect_timeout 300;
    fastcgi_send_timeout 300;
    fastcgi_read_timeout 300;
}

提高 php fpm max_children

請參考 PHP FPM Max Children 這篇文章，根據自己主機的狀況需求去提高可以使用的 php-fpm children 數量，提高存取效率

使用 sudo add-apt-repository ppa:ondrej/php 發生錯誤

$ sudo add-apt-repository ppa:ondrej/php
 Co-installable PHP versions: PHP 5.6, PHP 7.x and most requested extensions are included. Only Supported Versions of PHP (http://php.net/supported-versions.php) for Supported Ubuntu Releases (https://wiki.ubuntu.com/Releases) are provided. Don't ask for end-of-life PHP versions or Ubuntu release, they won't be provided.

Debian oldstable and stable packages are provided as well: https://deb.sury.org/#debian-dpa

You can get more information about the packages at https://deb.sury.org

BUGS&FEATURES: This PPA now has a issue tracker:
https://deb.sury.org/#bug-reporting

CAVEATS:
1. If you are using php-gearman, you need to add ppa:ondrej/pkg-gearman
2. If you are using apache2, you are advised to add ppa:ondrej/apache2
3. If you are using nginx, you are advise to add ppa:ondrej/nginx-mainline
   or ppa:ondrej/nginx

PLEASE READ: If you like my work and want to give me a little motivation, please consider donating regularly: https://donate.sury.org/

WARNING: add-apt-repository is broken with non-UTF-8 locales, see
https://github.com/oerdnj/deb.sury.org/issues/56 for workaround:

# LC_ALL=C.UTF-8 add-apt-repository ppa:ondrej/php
 More info: https://launchpad.net/~ondrej/+archive/ubuntu/php
Press [ENTER] to continue or ctrl-c to cancel adding it

gpg: keyring `/tmp/tmpw76p12wa/secring.gpg' created
gpg: keyring `/tmp/tmpw76p12wa/pubring.gpg' created
gpg: requesting key E5267A6C from hkp server keyserver.ubuntu.com
gpg: /tmp/tmpw76p12wa/trustdb.gpg: trustdb created
gpg: key E5267A6C: public key "Launchpad PPA for Ond\xc5\x99ej Sur�" imported
gpg: Total number processed: 1
gpg:               imported: 1  (RSA: 1)
Exception in thread Thread-1:
Traceback (most recent call last):
  File "/usr/lib/python3.4/threading.py", line 920, in _bootstrap_inner
    self.run()
  File "/usr/lib/python3.4/threading.py", line 868, in run
    self._target(*self._args, **self._kwargs)
  File "/usr/lib/python3/dist-packages/softwareproperties/SoftwareProperties.py", line 687, in addkey_func
    func(**kwargs)
  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 370, in add_key
    return apsk.add_ppa_signing_key()
  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 261, in add_ppa_signing_key
    tmp_export_keyring, signing_key_fingerprint, tmp_keyring_dir):
  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 210, in _verify_fingerprint
    got_fingerprints = self._get_fingerprints(keyring, keyring_dir)
  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 202, in _get_fingerprints
    output = subprocess.check_output(cmd, universal_newlines=True)
  File "/usr/lib/python3.4/subprocess.py", line 609, in check_output
    output, unused_err = process.communicate(inputdata, timeout=timeout)
  File "/usr/lib/python3.4/subprocess.py", line 947, in communicate
    stdout = _eintr_retry_call(self.stdout.read)
  File "/usr/lib/python3.4/subprocess.py", line 491, in _eintr_retry_call
    return func(*args)
  File "/usr/lib/python3.4/encodings/ascii.py", line 26, in decode
    return codecs.ascii_decode(input, self.errors)[0]
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc5 in position 92: ordinal not in range(128)

$

由於當系統不是 UTF-8 的 locales，會發生這個錯誤，只要在指令前方加入 locales 指令即可

$ sudo LC_ALL=C.UTF-8 add-apt-repository ppa:ondrej/php

sudo apt-get update 時出現 Failed to fetch http://ppa.launchpad.net/ondrej/php5-5.6/ubuntu/dists/trusty/main/binary-amd64/Packages 403 Forbidden 訊息

$ sudo apt-get update

W: Failed to fetch http://ppa.launchpad.net/ondrej/php5-5.6/ubuntu/dists/trusty/main/binary-amd64/Packages  403  Forbidden

E: Some index files failed to download. They have been ignored, or old ones used instead.

由於 php 資源庫的位置已更新，可以移除資源庫清單資料即可

sudo rm /etc/apt/sources.list.d/ondrej-php5-5_6-trusty.list
sudo add-apt-repository -y ppa:ondrej/php
sudo apt-get -y update

參考資料

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