memcached cache building
Set up the server and client so that the server can link the client
web client: 192.168.247.161
Server: 192.168.247.160
[root@localhost ~]# hostnamectl set-hostname client [root@localhost ~]# su [root@client ~]#
[root@nginx ~]# hostnamectl set-hostname server [root@nginx ~]# su [root@server ~]#
Set up server
Deploy libevent event notification Library
[root@server ~]# mkdir /abc mkdir: cannot create directory '/abc': File exists [root@server ~]# mount.cifs //192.168.254.10/linuxs /abc Password for root@//192.168.254.10/linuxs: [root@server ~]# cd /abc [root@server abc]# tar zxvf libevent-2.1.8-stable.tar.gz -C /opt [root@server abc]# tar zxvf memcached-1.5.6.tar.gz -C /opt [root@server abc]# cd /opt [root@server opt]# ls data libevent-2.1.8-stable memcached-1.5.6 nginx-1.12.2 rh [root@server opt]# cd libevent-2.1.8-stable/ [root@server libevent-2.1.8-stable]# yum install gcc gcc-c++ make -y [root@server libevent-2.1.8-stable]# ./configure --prefix=/usr/local/libevent [root@server libevent-2.1.8-stable]# make && make install
Once libevent is installed, install memcached
[root@server libevent-2.1.8-stable]# cd /opt/memcached-1.5.6/ [root@server memcached-1.5.6]# ./configure --prefix=/usr/local/memcached --with-libevent=/usr/local/libevent [root@server memcached-1.5.6]# make && make install [root@server memcached-1.5.6]# ln -s /usr/local/memcached/bin/* /usr/local/bin/
Command Notes:
- -d Specify daemon
- -m 32m Specified cache 32M
- -p 11211 Specified port
- -u root Specifies user management
[root@server memcached-1.5.6]# memcached -d -m 32m -p 11211 -u root [root@server memcached-1.5.6]# netstat -natp | grep memc tcp 0 0 0.0.0.0:11211 0.0.0.0:* LISTEN 115996/memcached tcp6 0 0 :::11211 :::* LISTEN 115996/memcached [root@server memcached-1.5.6]# systemctl stop firewalld [root@server memcached-1.5.6]# setenforce 0
Connect this cached database locally to see if you can connect properly
[root@server memcached-1.5.6]# yum install telnet -y [root@server memcached-1.5.6]# telnet 127.0.0.1 11211 Trying 127.0.0.1... Connected to 127.0.0.1. Escape character is '^]'.
Add add
Key name username
0 means no serial number is set
0 No time requirement, no expiration time set
7 bytes long. Next, if the byte length you entered does not meet the requirements, you will get an erroradd username 0 0 7 1234567 STORED add users 0 0 7 123 STORED ERROR
View input key values
get username VALUE username 0 7 1234567 END
value is followed by an update factor, which, if updated once, adds one
gets username VALUE username 0 7 1 1234567 END
set username 0 0 8 12345678 STORED gets username VALUE username 0 8 3 12345678 END
replace means update, which fails if the current key name does not exist
set also means update. If the current key name does not exist, a new key will be created.replace school 0 0 2 NOT_STORED get school END replace username 0 0 9 123456789 STORED gets username VALUE username 0 9 4 123456789 END
cas update, update by update factor, same update
cas username 0 0 7 4 1234567 STORED gets username VALUE username 0 7 5 1234567 END cas username 0 0 8 2 12345678 EXISTS gets username VALUE username 0 7 5 1234567 END
Append data after key value
append username 0 0 4 appe STORED get username VALUE username 0 11 1234567appe END
Append data before key value
prepend username 0 0 5 prepe STORED get username VALUE username 0 16 prepe1234567appe END
Delete key value
delete username DELETED get username END
stats display status information
Clear all cached data flush_allflush_all OK get users END
Exit: quit
quit Connection closed by foreign host. [root@server memcached-1.5.6]#
The next step is to install the client. To install the client, first deploy the LAMP architecture environment. Detailed process of LAMP architecture deployment can be seen in the blog: https://blog.51cto.com/14557905/2458323
Once the LAMP is installed, install the memcahe client
[root@client abc]# yum install autoconf -y [root@client htdocs]# cd /abc [root@client abc]# tar zxvf memcache-2.2.7.tgz -C /opt [root@client abc]# cd /opt [root@client opt]# ls httpd-2.4.29 memcache-2.2.7 mysql-5.6.26 package.xml php-5.6.11 rh [root@client opt]# cd memcache-2.2.7/ [root@client memcache-2.2.7]# ls config9.m4 example.php memcache.php memcache_standard_hash.c config.m4 memcache.c memcache_queue.c php_memcache.h config.w32 memcache_consistent_hash.c memcache_queue.h README CREDITS memcache.dsp memcache_session.c [root@client memcache-2.2.7]#
[root@client memcache-2.2.7]# /usr/local/php5/bin/phpize [root@client memcache-2.2.7]# ls acinclude.m4 config.sub Makefile.global memcache_standard_hash.c aclocal.m4 configure memcache.c missing autom4te.cache configure.in memcache_consistent_hash.c mkinstalldirs build config.w32 memcache.dsp php_memcache.h config9.m4 CREDITS memcache.php README config.guess example.php memcache_queue.c run-tests.php config.h.in install-sh memcache_queue.h config.m4 ltmain.sh memcache_session.c [root@client memcache-2.2.7]# ./configure --enable-memcache --with-php-config=/usr/local/php5/bin/php-config [root@client memcache-2.2.7]# make && make install [root@client memcache-2.2.7]# vim /usr/local/php5/php.ini 736 ; extension_dir = "ext" 737 extension_dir="/usr/local/php5/lib/php/extensions/no-debug-zts-20131226/" #increase 738 extension = memcache.so #increase
Detect whether the server can connect on the web client
[root@client memcache-2.2.7]# cd /usr/local/httpd/htdocs/
[root@client htdocs]# ls
index.php
[root@client htdocs]# vim gsy.php
<?php
$memcache = new Memcache();
$memcache->connect('192.168.247.160',11211);
$memcache->set('key','Memcache test Successfull',0,60);
$result = $memcache->get('key');
unset($memcache);
echo $result;
?>
[root@client htdocs]# service httpd restartNow you can view it on your browser