LAMP系列之Apache优雅重启、优雅关闭
1、优雅停止信号：WINCH
# /appl/apache/bin/apachectl-kgraceful-stop#
# elinks -dump http://192.168.137.3 #使用elinks访问测试
ELinks: 拒绝连接
2、优雅重启
信号：USR1
# /appl/apache/bin/apachectl -k graceful
httpd not running, trying to start
# ps aux |grep httpd
root 55950.00.3334203260 ? Ss 16:34 0:00 /appl/apache2.2.22/bin/httpd -k graceful
daemon 55960.00.1319761296 ? S 16:34 0:00 /appl/apache2.2.22/bin/httpd -k graceful
daemon 55970.00.1331521144 ? S 16:34 0:00 /appl/apache2.2.22/bin/httpd -k graceful
daemon 55980.00.3 3776803900 ? Sl 16:34 0:00 /appl/apache2.2.22/bin/httpd -k graceful
daemon 55990.00.3 3776803904 ? Sl 16:34 0:00 /appl/apache2.2.22/bin/httpd -k graceful
daemon 56000.00.3 3776803908 ? Sl 16:34 0:00 /appl/apache2.2.22/bin/httpd -k graceful
root 56830.00.0 103248 836 pts/1 S+ 16:34 0:00 grep httpd
测试：
# elinks -dump http://192.168.137.3
It works!
3、Apache正常启动、关闭、重启
# /appl/apache/bin/apachectl -k stop
httpd (no pid file) not running
# elinks -dump http://192.168.137.3
ELinks: 拒绝连接
#
# /appl/apache/bin/apachectl -k start
# elinks -dump http://192.168.137.3
It works!
# /appl/apache/bin/apachectl -k restart
# elinks -dump http://192.168.137.3
It works!
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