RedHat PHP memcache configuration instructions

ArticleDirectory

• I. Software Packages

I. Software Packages

A) libevent-1.4.13-stable.tar.gz

B) libmemcached-0.27.tar.gz

C) memcached-1.4.5.tar.gz

D) memcache-2.2.5.tgz

Ii. Installation Steps

A) tar zxvf libevent-1.4.13-stable.tar.gz

B) CD libevent-1.4.13-stable

C)./configure make install

D) CD ../

E) tar zxvf libmemcached-0.27.tar.gz

F) CD libmemcached-0.27

G)./configure make install

H) CD ../

I) tar zxvf memcached-1.4.5.tar.gz

J) CD memcached-1.4.5

K)./configure make intall

L) CD ../

M) gzip-D memcache-2.2.5.tgz

N) tar xvf memcache-2.2.5

O) CD memcache-2.2.5

P)/usr/local/PHP/bin/phpize

Q)./configure-enable-memcache-with-PHP-Config =/usr/local/PHP/bin/PHP-config

R) Make make install

S) ln-S/usr/local/lib/libevent-1.4.so.2/usr/lib/libevent-1.4.so.2

T) vi/usr/local/PHP/lib/PHP. ini

Modify extension_dir = "/usr/local/PHP/lib/PHP/extensions/no-debug-non-zts-20060613 /"

Added extension = memcache. So

U)/usr/local/Apache/bin/apachectl-K restart

V) The following information can be obtained through the phpinfo () function:

Memcache

Memcache support	Enabled
Active persistent connections	0
Version	2.2.5
Revision	$ Revision: 1.111 $

Directive	Local Value	Master Value
Memcache. allow_failover	1	1
Memcache. chunk_size	8192	8192
Memcache. default_port	11211	11211
Memcache. default_timeout_ms	1000	1000
Memcache. hash_function	CRC32	CRC32
Memcache. hash_strategy	Standard	Standard
Memcache. max_failover_attempts	20	20

W) Start the memcache Server

/Usr/local/bin/memcached-D-M 100-uroot-l 59.64.28.78-P 11211-C 256-P/tmp/memcached. PID

-D option is to start a daemon,
-M indicates the amount of memory allocated to memcache. The unit is mb. Here is 100 MB,
-U is the user who runs memcache. Here I am root,
-L is the IP address of the listening server. If there are multiple IP addresses, I have specified the IP address 59.64.28.78,
-P is the port for memcache listening. I have set port 11211 here, preferably port 1024 or above,
-The "C" option is the maximum number of concurrent connections. The default value is 1024. I have set 256 here, which is based on the load of your server,
-P is the PID file for saving memcache. Here I save it in/tmp/memcached. PID.

X) testCode

<? PHP

$ Memcache = new memcache;

$ Memcache-> connect ("59.64.28.78", 11211) or die ("cocould not connect ");

$ Version = $ memcache-> getversion ();

Echo "server's version:". $ version. "\ n ";

$ Member [] = "chenhw ";

$ Member [] = "Linux ";

If (! $ Memcache-> Add ("name", "member", false, 10 )){

$ Member2 = $ memcache-> get ("member ");

} Else {

$ Memcache-> set ("member", $ Member, false, 10 );

Echo "member is not exist ";

}

Echo $ member2 [0];

?>

X) Introduction to the memcached Method

Memcache: Add // Add a value. if it already exists, false is returned.
Memcache: addserver // Add a memcache address
Memcache: Close // close a memcache connection
Memcache: connect // open a connection to memcache
Memcache: decrement // subtract the value of a saved key
Memcache: delete // Delete the key value of a memcache.
Memcache: flush // refresh the items saved on all memcache instances (similar to deleting all saved items)
Memcache: Get // get a key value from memcache
Memcache: getextendedstats // gets the running system statistics of all processes in the process pool.
Memcache: getserverstatus // get the parameters of the running server
Memcache: getstats // get the running status of the current memcache Server
Memcache: getversion // return the version information of the running memcache.
Memcache: Increment // Add the value of a saved key
Memcache: pconnect // open a persistent connection to memcache
Memcache: replace // replace a project that already exists on the memcache server (functions like memcache: Set // Add a value to memcache. if it already exists, overwrite it
Memcache: setcompressthreshold // compress data larger than a certain size
Memcache: setserverparams // modify server parameters during runtime

Iii. Related commands

A) Kill 'cat/tmp/memcached. Pi' to stop the memcached service.

B) echo stats | NC 59.64.28.78 11211 check the memcached running status

C) echo "flush_all" | NC 59.64.28.78 11211 clear all cached data