'memcached'에 해당되는 글 1건

  1. 2012.11.23 memcached 설치 따라하기.

memcached 설치 따라하기.

ITWeb/개발일반 2012.11.23 12:00

[Memcached 설치]
    ※ Reference
        http://code.google.com/p/memcached/wiki/NewInstallFromSource
        http://yupmin.net/install-memcached
    ※ 설치
        (root권한)
            sudo yum install libevent libevent-devel
        (user권한)
            cd dist
            wget http://memcached.org/latest
            tar -zxvf memcached-1.x.x.tar.gz
            cd memcached-1.x.x
            ./configure --prefix=/usr/local/memcached --with-libevent=/usr/lib/
            make && make test
        (root권한)
            sudo make install
    ※ 설정
        cd /etc
        sudo vi memcached.conf
            -m 16
            -p 11311
            -u nobody
            -l 127.0.0.1
    ※ init script 생성
        (user권한)
        mkdir -p /home/USER/dist/memcached_script
        cd /home/USER/dist/memcached_script
            wget http://yupmin.net/wp-content/uploads/2010/08/memcached_script.tar.gz
            tar xvfz memcached_script.tar.gz
            chmod 755 /usr/local/bin/start-memcached
            chmod 755 /etc/init.d/memcached
        (root 권한)
            cd /usr/local/bin
            sudo ln -s /usr/local/memcached/bin/memcached memcached
            cd /home/USER/dist/memcached_script
            sudo mv start-memcached /usr/local/bin/start-memcached
            sudo mv memcached /etc/init.d/memcached
    ※ 실행
        sudo /usr/local/bin/start-memcached or
        /usr/local/memcached/bin/memcached -d -r -m 64 -l 서버IP(10.101.254.223) -p 11211
        - 실행 권한 root or user
        - 단일 서버에 Multi instance 실행
            /usr/local/memcached/bin/memcached -d -r -m 64 -l 서버IP(10.101.254.223) -p 11211
            /usr/local/memcached/bin/memcached -d -r -m 64 -l 서버IP(10.101.254.223) -p 11311
            /usr/local/memcached/bin/memcached -d -r -m 64 -l 서버IP(10.101.254.223) -p 11411
    ※ 실행 스크립트
        #!/usr/bin/perl -w
 
        # start-memcached
        # 2003/2004 - Jay Bonci <jaybonci@debian.org>
        # This script handles the parsing of the /etc/memcached.conf file
        # and was originally created for the Debian distribution.
        # Anyone may use this little script under the same terms as
        # memcached itself.
 
        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";
        }

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