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/functionsPATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/binDAEMON=/usr/local/bin/memcachedDAEMONBOOTSTRAP=/usr/local/bin/start-memcachedDAEMONCONF=/etc/memcached.confNAME=memcachedDESC=memcachedPIDFILE=/var/run/$NAME.pid[-x$DAEMON]||exit0[-x$DAEMONBOOTSTRAP]||exit0RETVAL=0start(){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"$1"instart)start;;stop)stop;;restart|reload)stopstartRETVAL=$?;;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-memcacheduse 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.pidmy $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 tipmy $fd_reopened = "/dev/null";sub handle_logfile {my ($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] directivesmy $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/memcachedchmod 755 /usr/local/bin/start-memcached

启动

service memcached start

[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/