Memcached启停脚本小结

编写配置文件

vim/etc/memcached.conf

内容如下：

-m128-d-p11211-c1024

编写启动脚本

vim /etc/rc.d/init.d/memcached 

#!/bin/bash

#

# memcached This shell script takes care of starting and stopping

# standalone memcached.

# . /etc/rc.d/init.d/functions PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin DAEMON=/usr/local/bin/memcached DAEMONBOOTSTRAP=/usr/local/bin/start-memcached DAEMONCONF=/etc/memcached.conf NAME=memcached DESC=memcached PIDFILE=/var/run/$NAME.pid [-x$DAEMON]||exit0[-x$DAEMONBOOTSTRAP]||exit0RETVAL=0 start(){echo-n $"Starting $DESC: " daemon $DAEMONBOOTSTRAP$DAEMONCONFRETVAL=$?[$RETVAL-eq0]&&touch$PIDFILEechoreturn$RETVAL} stop(){echo-n $"Shutting down $DESC: " killproc $NAMERETVAL=$?echo[$RETVAL-eq0]&&rm-f$PIDFILEreturn$RETVAL}# See how we were called.case"$1"in start) start ;; stop) stop ;; restart|reload) stop start RETVAL=$?;; status) status $progRETVAL=$?;;*)echo $"Usage: $0 {start|stop|restart|status}"exit1esacexit$RETVAL

[编辑]编写start-memcached脚本

vim /usr/local/bin/start-memcached 

#!/usr/bin/perl -w# start-memcached use strict; if($>!= 0 and $<!= 0){ print STDERR "Only root wants to run start-memcached.\n"; exit; } my $etcfile = shift||"/etc/memcached.conf"; my $params = []; my $etchandle; # This script assumes that memcached is located at /usr/bin/memcached, and# that the pidfile is writable at /var/run/memcached.pid my $memcached = "/usr/local/bin/memcached"; my $pidfile = "/var/run/memcached.pid"; # If we don't get a valid logfile parameter in the /etc/memcached.conf file,# we'll just throw away all of our in-daemon output. We need to re-tie it so# that non-bash shells will not hang on logout. Thanks to Michael Renner for# the tip my $fd_reopened = "/dev/null"; sub handle_logfile { my ($logfile) = @_; $fd_reopened = $logfile; } sub reopen_logfile { my ($logfile) = @_; open *STDERR, ">>$logfile"; open *STDOUT, ">>$logfile"; open *STDIN, ">>/dev/null"; $fd_reopened = $logfile; }# This is set up in place here to support other non -[a-z] directives my $conf_directives = {"logfile" => \&handle_logfile }; if(open $etchandle, $etcfile){ foreach my $line(<$etchandle>){$line =~ s/\#.*//go;$line = join' ', split' ', $line; next unless $line; next if$line =~ /^\-[dh]/o; if($line =~ /^[^\-]/o){ my ($directive, $arg) = $line =~ /^(.*?)\s+(.*)/; $conf_directives->{$directive}->($arg); next; } push @$params, $line; }} unshift @$params, "-u root" unless (grep$_ eq '-u', @$params); $params = join" ", @$params; if(-e $pidfile){ open PIDHANDLE, "$pidfile"; my $localpid = <PIDHANDLE>; close PIDHANDLE; chomp $localpid; if(-d "/proc/$localpid"){ print STDERR "memcached is already running.\n"; exit; }else{`rm-f$localpid`; }} my $pid = fork(); if($pid == 0){ reopen_logfile($fd_reopened); exec"$memcached$params"; exit(0); } elsif (open PIDHANDLE,">$pidfile"){ print PIDHANDLE $pid; close PIDHANDLE; }else{ print STDERR "Can't write pidfile to $pidfile.\n"; }

修改权限

chmod 755 /etc/rc.d/init.d/memcached chmod 755 /usr/local/bin/start-memcached 

启动

service memcached start 

[root@localhost keepalived]# service memcached start

Starting memcached:                                        [确定]

[root@localhost keepalived]#  ps -aux | grep memcached

Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.8/FAQ

root     10803  0.0  0.1 326900  1196 ?        Ssl  18:25   0:00 /usr/local/bin/memcached -u root -m 128 -d -p 11211 -c 1024

root     10811  0.0  0.0 103256   880 pts/1    S+   18:25   0:00 grep memcached

[编辑]艺搜参考

http://forums.eukhost.com/f15/memcached-best-caching-option-linux-web-servers-5269/

http://duntuk.com/how-install-memcached-centos-memcached-php-extension-centos

http://complitech.net/steps-for-install-memcached-on-fedoara-linux-platform-and-create-service-for-memcached/