CentOS7最大改变是systemd代替过去的systemV服务，于是配置服务的方式改变了，用systemctl替代过去的service, chkconfig等命令。

网站搬迁服务器，全新服务器当然用新系统，于是安装上CentOS7。

PHP5.4编译参数：

./configure --build=x86_64-redhat-linux-gnu --host=x86_64-redhat-linux-gnu \
--with-layout=GNU \
--prefix=/usr/local --exec-prefix=/usr/local  \
--sysconfdir=/etc  --libdir=/usr/local/lib/php \
--sbindir=/usr/local/sbin --sharedstatedir=/usr/com --datadir=/usr/local/share \
--includedir=/usr/local/include --libexecdir=/usr/local/libexec \
--localstatedir=/run --mandir=/usr/local/share/man --infodir=/usr/local/share/info \
--with-config-file-path=/etc --with-config-file-scan-dir=/etc/php.d \
--with-pic  --with-curl  --with-freetype-dir --with-png-dir  \
--with-gettext=shared --with-gmp=shared --with-iconv --with-jpeg-dir --with-png-dir \
--with-openssl --with-libxml-dir --with-pcre-regex \
--with-mcrypt --with-zlib  --with-mhash \
--with-pear --with-gd --enable-gd-native-ttf --enable-calendar=shared \
--enable-exif --enable-ftp --enable-sockets --enable-bcmath=shared \
--enable-pcntl \
--enable-intl --enable-mbstring \
--enable-zip --with-bz2 \
--without-unixODBC --enable-mbregex \
--enable-fpm  --with-fpm-user=www  --with-fpm-group=www \
--disable-tokenizer --disable-phar \
--enable-sysvsem --enable-sysvshm --enable-sysvmsg \
--disable-cgi \\
--with-pgsql=/usr/pgsql-9.4 --with-pdo-pgsql=/usr/pgsql-9.4 \\
--with-pdo-mysql --with-mysql --with-mysql-sock=/var/lib/mysql/mysql.sock  \
--with-mysqli=shared --enable-mysqlnd \\

nginx1.8.0编译参数

./configure --prefix=/usr/local/nginx --conf-path=/etc/nginx/nginx.conf \--sbin-path=/usr/local/sbin/nginx --user=nginx --group=www \--with-http_ssl_module --with-http_realip_module  \--with-http_stub_status_module \--with-file-aio \--pid-path=/run/nginx.pid \--lock-path=/run/nginx/nginx.lock \--http-log-path=/var/log/nginx/access.log \--error-log-path=/var/log/nginx/error.log \--http-client-body-temp-path=/run/nginx/client \--http-proxy-temp-path=/run/nginx/proxy \--http-fastcgi-temp-path=/run/nginx/fcgi \--with-debug \--without-http_ssi_module \--without-http_scgi_module \--without-http_uwsgi_module \--without-http_autoindex_module \--without-http_memcached_module \--without-http_proxy_module \--without-http_map_module \--without-http_geo_module \--without-http_auth_basic_module \--without-http_upstream_ip_hash_module \--without-http_split_clients_module \--without-select_module \

/etc/php-fpm.conf:

[global]
pid = /run/php-fpm/php-fpm.pid
error_log = /var/log/php-fpm.log
log_level = warning
emergency_restart_threshold = 10
emergency_restart_interval = 60
process_control_timeout = 300s
daemonize = yes
rlimit_files = 10240[www0]
prefix = /run/php-fpm/pools/$pool
listen = /run/php-fpm/php-fpm0.sock
listen.backlog = 2048
listen.owner = www
listen.group = www
listen.mode = 0666
user = www
group = www
pm = static
pm.max_children = 30
pm.max_requests = 500
pm.status_path = /status
request_terminate_timeout = 600
request_slowlog_timeout = 30
slowlog = /var/log/nginx/slow.log
env[TMP] = /run/php-fpm/tmp
env[TMPDIR] = /run/php-fpm/tmp
env[TEMP] = /run/php-fpm/tmp [www1]
prefix = /run/php-fpm/pools/$pool
listen = /run/php-fpm/php-fpm1.sock
listen.backlog = 2048
listen.owner = www
listen.group = www
listen.mode = 0666
user = www
group = www
pm = static
pm.max_children = 10
pm.max_requests = 500
pm.status_path = /status
request_terminate_timeout = 600
request_slowlog_timeout = 30
slowlog = /var/log/nginx/slow.log
env[TMP] = /run/php-fpm/tmp
env[TMPDIR] = /run/php-fpm/tmp
env[TEMP] = /run/php-fpm/tmp

编辑php-fpm启动配置文件 /etc/systemd/system/php-fpm.service

[Unit]
Description=The PHP FastCGI Process Manager
After=syslog.target network.target
Before=nginx.service[Service]
Type=forking
#Type=notify
PIDFile=/run/php-fpm/php-fpm.pid
ExecStart=/usr/local/sbin/php-fpm --fpm-config /etc/php-fpm.conf
ExecReload=/bin/kill -USR2 $MAINPID
PrivateTmp=true[Install]
WantedBy=multi-user.target

/etc/systemd/system/nginx.service

[Unit]
Description=The nginx HTTP and reverse proxy server @ifxdb
After=network.target remote-fs.target nss-lookup.target php-fpm.service[Service]
Type=forking
PIDFile=/run/nginx.pid
ExecStartPre=/usr/local/sbin/nginx -t
ExecStart=/usr/local/sbin/nginx
ExecReload=/bin/kill -s HUP $MAINPID
ExecStop=/bin/kill -s QUIT $MAINPID
KillMode=process
KillSignal=SIGQUIT
TimeoutStopSec=5
PrivateTmp=true[Install]
WantedBy=multi-user.target

编辑虚拟文件配置 （Centos7的/run是用tmpfs挂接的，重启后目录会消失并重新生成指定默认的）

/etc/tmpfiles.d/php-fpm.conf

#  systemd tmpfile settings for php-fpm and nginx
# See tmpfiles.d(5) for detailsd /run/nginx 0755 nginx root - -
d /run/nginx/client 0755 nginx root 10d -
d /run/nginx/fcgi 0755 nginx root 10d -
d /run/nginx/proxy 0755 nginx root 10d -
d /run/nginx/cache0 0755 nginx root 10d -
d /run/nginx/cache1 0755 nginx root 10d -
d /run/nginx/cache2 0755 nginx root 10d -
d /run/nginx/cache3 0755 nginx root 10d -d /run/php-fpm 0755 www www 10d -
d /run/php-fpm/tmp 0755 www www 3d -
d /run/php-fpm/session 0755 www www 1d -
d /run/php-fpm/pools 0755 www www 3d -
d /run/php-fpm/pools/www0 0755 www www - -
d /run/php-fpm/pools/www1 0755 www www - -
d /run/php-fpm/pools/www2 0755 www www - -
d /run/php-fpm/pools/www3 0755 www www - -d /run/pear 0755 www www 3d -
d /run/pear/tmp 0755 www www 3d -

重启服务器一次

编译配置完毕。启用和启动服务

sudo systemctl daemon-reload
sudo systemctl enable nginx php-fpm
sudo systemctl start nginx php-fpm

---------------------------------------------------------------------

PHP5.4有点老了，准备装个最新稳定版5.6试试并且为即将到来的PHP7做准备。以前是在单独的一台服务器上跑测试，现在一台服务器上该如何设置呢？

先编译PHP5.6，注意前缀变成了 /opt

./configure --build=x86_64-redhat-linux-gnu --host=x86_64-redhat-linux-gnu \
--with-layout=GNU \
--prefix=/opt/local --exec-prefix=/opt/local  \
--sysconfdir=/etc  --libdir=/opt/local/lib/php \
--sbindir=/opt/local/sbin --sharedstatedir=/usr/com --datadir=/opt/local/share \
--includedir=/opt/local/include --libexecdir=/opt/local/libexec \
--localstatedir=/run --mandir=/opt/local/share/man --infodir=/opt/local/share/info \
--with-config-file-path=/opt --with-config-file-scan-dir=/opt/php.d \
--enable-opcache --with-fpm-acl \
--with-pic  --with-curl  --with-freetype-dir --with-png-dir  \
--with-gettext=shared --with-gmp=shared --with-iconv --with-jpeg-dir --with-png-dir \
--with-openssl --with-libxml-dir --with-pcre-regex \
--with-mcrypt --with-zlib  --with-mhash \
--with-pear --with-gd --enable-gd-native-ttf --enable-calendar=shared \
--enable-exif --enable-ftp --enable-sockets --enable-bcmath=shared \
--enable-pcntl \
--enable-intl --enable-mbstring \
--enable-zip --with-bz2 \
--without-unixODBC --enable-mbregex \
--enable-fpm  --with-fpm-user=www  --with-fpm-group=www  --with-fpm-systemd \
--disable-tokenizer --disable-phar \
--enable-sysvsem --enable-sysvshm --enable-sysvmsg \
--disable-cgi \\
--with-pgsql=/usr/pgsql-9.4 --with-pdo-pgsql=/usr/pgsql-9.4 \\
--with-pdo-mysql --with-mysql --with-mysql-sock=/var/lib/mysql/mysql.sock  --enable-mysqlnd \\

然后编辑 /etc/php-fpm2.conf，注意php-fpm2.pid

pid = /run/php-fpm/php-fpm2.pid
; ....... 删除[www0] [www1]小结， 其他不变[www2]
prefix = /run/php-fpm/pools/$pool
listen = /run/php-fpm/php-fpm2.sock
listen.backlog = 2048
listen.owner = www
listen.group = www
listen.mode = 0666
user = www
group = www
pm = static
pm.max_children = 20
pm.max_requests = 500
pm.status_path = /status
request_terminate_timeout = 600
request_slowlog_timeout = 30
slowlog = /var/log/nginx/slow.log
env[TMP] = /run/php-fpm/tmp
env[TMPDIR] = /run/php-fpm/tmp
env[TEMP] = /run/php-fpm/tmp [www3]
prefix = /run/php-fpm/pools/$pool
listen = /run/php-fpm/php-fpm3.sock
listen.backlog = 2048
listen.owner = www
listen.group = www
listen.mode = 0666
user = www
group = www
pm = static
pm.max_children = 20
pm.max_requests = 500
pm.status_path = /status
request_terminate_timeout = 600
request_slowlog_timeout = 30
slowlog = /var/log/nginx/slow.log
env[TMP] = /run/php-fpm/tmp
env[TMPDIR] = /run/php-fpm/tmp
env[TEMP] = /run/php-fpm/tmp

然后复制php.ini

sudo cp -p /etc/php.ini /opt/php56.ini

php5.6的配置相对5.4没啥变化，除了 default_charset = "UTF-8" 这个需要设置

=======================

关键来了，如何配置php-fpm服务呢？

编辑 /etc/systemd/system/php-fpm2.service

[Unit]
Description=The PHP FastCGI Process Manager @develop
After=syslog.target network.target
Before=nginx.service[Service]
#Type=forking
Type=notify
PIDFile=/run/php-fpm/php-fpm2.pid
ExecStart=/opt/local/sbin/php-fpm -c /opt/php56.ini --fpm-config /etc/php-fpm2.conf
ExecReload=/bin/kill -USR2 $MAINPID
PrivateTmp=true
WatchdogSec=30
Restart=always[Install]
WantedBy=multi-user.target

注意上面PIDFile, ExecStart的参数变化了。另外Type用原来的forking也行，不过改成notify有个好处下面说。

修改 /etc/nginx/nginx.conf文件

http {upstream php_servers{server unix:/run/php-fpm/php-fpm0.sock;server unix:/run/php-fpm/php-fpm1.sock;#server unix:/run/php-fpm/php-fpm2.sock ;#server unix:/run/php-fpm/php-fpm3.sock ;}upstream php_servers2{#server unix:/run/php-fpm/php-fpm0.sock;#server unix:/run/php-fpm/php-fpm1.sock;server unix:/run/php-fpm/php-fpm2.sock ;server unix:/run/php-fpm/php-fpm3.sock ;}

然后修改nginx站点配置，在测试网站指定使用php_servers2作为解析

    location ~ \.php$ {try_files      $uri =404;       # 屏蔽日志中 Primary script unknownaccess_log      off;log_not_found   off;#fastcgi_pass        php_servers;fastcgi_pass        php_servers2;include             fastcgi.conf;}

重启服务

sudo systemctl daemon-reload
sudo systemctl start php-fpm2
sudo systemctl reload nginx

这样多版本PHP就同时跑起来了。

看看php-fpm2.service 的状态呢

$ sudo systemctl status php-fpm2
php-fpm2.service - The PHP FastCGI Process Manager -developLoaded: loaded (/etc/systemd/system/php-fpm2.service; enabled)Active: active (running) since Thu 2015-09-24 16:19:08 CST; 1 day 4h agoMain PID: 21928 (php-fpm)Status: "Processes active: 1, idle: 39, Requests: 197553, slow: 0, Traffic: 17.2req/sec"CGroup: /system.slice/php-fpm2.service├─ 2841 php-fpm: pool www3├─ 2845 php-fpm: pool www3├─ 2846 php-fpm: pool www2├─ 2847 php-fpm: pool www3

看到这一行没？

Status: "Processes active: 1, idle: 39, Requests: 197553, slow: 0, Traffic: 17.2req/sec"

这就是notify类型的特色，可以提供实时统计数据。

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