centos memcache,centos7.5安装

各位老铁们,大家好,今天由我来为大家分享centos memcache,以及centos7.5安装的相关问题知识,希望对大家有所帮助。如果可以帮助到大家,还望关注收藏下本站,您的支持是我们最大的动力,谢谢大家了哈,下面我们开始吧!

LAMP平台安装Xcache和Memcached加速网站运行

在CentOS 7系统里搭建好LAMP环境后,就可以安装网站程序了,以最流行了Wordpess为例。为了加快网站的访问速度,除了花钱买更好的硬件设施外。我们可以通过优化网站的程序、主题。为服务器开启缓存功能,为网站提速。我们知道,互联网上缓存为王。

1.安装php加速器Xcache

XCache是一个国人开发的又快又稳定的 PHP opcode缓存器,通过共享编译内存从而降低服务器负载。

由于yum源仓库里面没有,先下载源文件,最新版3.2.0

在tmp目录下:cd/tmp下载:wget

解压缩:tar xvfz xcache-3.2.0.tar.gz

准备安装:cd xcache-3.2.0

安装前,先要准备编译环境:yum-y install php-devel gcc

运行phpize,非常重要:phpize

配置:./configure--enable-xcache

安装:make make install

复制配置文件 cp xcache.ini/etc/php.d(xcache.ini在源程序安装目录)

重新启动http服务:systemctl restart httpd

2.安装memcached

Memcached是一个高性能的分布式内存对象缓存系统,用于动态Web应用以减轻数据库负载。它通过在内存中缓存数据和对象来减少读取数据库的次数,从而提供动态、数据库驱动网站的速度。

a.安装

yum-y install memcached

安装memcache关联php

yum-y install php-pecl-memcache

编译安装PHP的memcache扩展

下载 wget

tar xf memcache-3.0.8.tgz

cd memcache-3.0.8

依次执行

phpize

./configure

make make install

b.配置

在php.ini文件中添加memcache扩展

extension=/usr/lib64/php/modules/memcache.so(版本不同目录可能不同)

c.运行

memcached-d-m 128-c 1024-P/tmp/memcached.pid

d.测试

测试memcached是否工作正常,在网站目录下编辑一个文件如memtest.php,放入如下代码:

$memcache= new Memcache;

$memcache-connect('localhost', 11211) or die("Could not connect");

$version=$memcache-getVersion();

echo"Server's version:".$version."

/n";

$tmp_object= new stdClass;

$tmp_object-str_attr='test';

$tmp_object-int_attr= 123;

$memcache-set('key',$tmp_object, false, 10) or die("Failed to save data at the server");

echo"Store data in the cache(data will expire in 10 seconds)

/n";

$get_result=$memcache-get('key');

echo"Data from the cache:

/n";

var_dump($get_result);

?

访问后如果能现实版本号server's version: 1.4…… store date in the cache等信息说明memcached运行正常。

5.整合

Wordpress支持memcached

下载:wget

unzip memcached.2.0.2.zip

cd memcached.2.0.2

复制 object-cache.php到网站根目录 wp-content文件夹内,wordpress会自动调用缓存。

重启服务器:

sytemctl restart memcached

sytemctl restart httpd

3.开启Gzip压缩。

apache2.4版本默认添加了gzip模块,我们要同时开启deflate模块,压缩网页文件,提高服务器浏览速度。

vim/etc/httpd/conf/httpd.conf在最后加入如下几行:

DeflateCompressionLevel 9

AddOutputFilterByType DEFLATE text/html text/plain text/xml application/x-httpd-php

AddOutputFilter DEFLATE css js

重新启动http服务:systemctl restart httpd

阿里云上的centos 7.2怎么yum安装php 5.6

因之前通过网易的 centos镜像,将阿里云的 centos升级到最新版了,乘自己的项目尚未开始正式开发,遂将所有的相应环境都升级到最高。

查看 centos版本:

[root@iZ23d~]# cat/etc/centos-release

CentOS Linux release 7.2.1511(Core)

1、删除之前的 php版本:

[root@iZ23d~]# yum remove php* php-common

Loaded plugins: langpacks

Repository base is listed more than once in the configuration

Repository updates is listed more than once in the configuration

Repository extras is listed more than once in the configuration

Repository centosplus is listed more than once in the configuration

No Match for argument: php-5.4.16

No Match for argument: php-5.4.16.tar.gz

No Match for argument: php-7.0.1RC1

No Match for argument: php-7.0.1RC1.tar.gz

No Match for argument: phpMyAdmin-4.4.0.tar.gz

No Match for argument: php-common

No Packages marked for removal

2、rpm安装 Php7相应的 yum源:

[root@iZ23d~]# rpm-Uvh

Retrieving

warning:/var/tmp/rpm-tmp.LhJKKR: Header V4 RSA/SHA1 Signature, key ID 62e74ca5: NOKEY

Preparing...################################# [100%]

package webtatic-release-7-3.noarch is already installed

3、直接yum安装php7:

[root@iZ23d~]# yum install php70w

Loaded plugins: langpacks

Repository base is listed more than once in the configuration

Repository updates is listed more than once in the configuration

Repository extras is listed more than once in the configuration

Repository centosplus is listed more than once in the configuration

Resolving Dependencies

--> Running transaction check

。。。【省略】

Warning: RPMDB altered outside of yum.

Installing: php70w-common-7.0.0-1.w7.x86_64 1/3

Installing: php70w-cli-7.0.0-1.w7.x86_64 2/3

Installing: php70w-7.0.0-1.w7.x86_64 3/3

Verifying: php70w-7.0.0-1.w7.x86_64 1/3

Verifying: php70w-common-7.0.0-1.w7.x86_64 2/3

Verifying: php70w-cli-7.0.0-1.w7.x86_64 3/3

Installed:

php70w.x86_64 0:7.0.0-1.w7

Dependency Installed:

php70w-cli.x86_64 0:7.0.0-1.w7 php70w-common.x86_64 0:7.0.0-1.w7

Complete!

4、检查 php版本:

[root@iZ23d~]# php-v

PHP 7.0.0(cli)(built: Dec 2 2015 20:42:32)( NTS)

Copyright(c) 1997-2015 The PHP Group

Zend Engine v3.0.0, Copyright(c) 1998-2015 Zend Technologies

[root@iZ23d2e6hoqZ~]#

以上显示安装成功!

5、重启 Apache,查看 phpinfo:

[root@iZ23d~]# systemctl restart httpd.service

检查phpinfo:

PHP Version 7.0.0

SystemLinux iZ23d 3.10.0-229.11.1.el7.x86_64#1 SMP Thu Aug 6 01:06:18 UTC 2015 x86_64

Build DateDec 2 2015 20:43:38

Server APIApache 2.0 Handler

Virtual Directory Supportdisabled

Configuration File(php.ini) Path/etc

Loaded Configuration File/etc/php.ini

Scan this dir for additional.ini files/etc/php.d

Additional.ini files parsed/etc/php.d/bz2.ini,/etc/php.d/calendar.ini,/etc/php.d/ctype.ini,/etc/php.d/curl.ini,/etc/php.d/exif.ini,/etc/php.d/fileinfo.ini,/etc/php.d/ftp.ini,/etc/php.d/gettext.ini,/etc/php.d/gmp.ini,/etc/php.d/iconv.ini,/etc/php.d/json.ini,/etc/php.d/phar.ini,/etc/php.d/shmop.ini,/etc/php.d/simplexml.ini,/etc/php.d/sockets.ini,/etc/php.d/tokenizer.ini,/etc/php.d/xml.ini,/etc/php.d/zip.ini

PHP API20151012

PHP Extension20151012

Zend Extension320151012

Zend Extension BuildAPI320151012,NTS

PHP Extension BuildAPI20151012,NTS

Debug Buildno

Thread Safetydisabled

Zend Signal Handlingdisabled

Zend Memory Managerenabled

Zend Multibyte Supportdisabled

IPv6 Supportenabled

DTrace Supportenabled

Registered PHP Streamshttps, ftps, compress.zlib, php, file, glob, data, http, ftp, compress.bzip2, phar, zip

Registered Stream Socket Transportstcp, udp, unix, udg, ssl, sslv3, sslv2, tls, tlsv1.0, tlsv1.1, tlsv1.2

Registered Stream Filterszlib.*, string.rot13, string.toupper, string.tolower, string.strip_tags, convert.*, consumed, dechunk, bzip2.*, convert.iconv.*

This program makes use of the Zend Scripting Language Engine:

Zend Engine v3.0.0, Copyright(c) 1998-2015 Zend Technologies

Configuration

apache2handler

Apache VersionApache/2.4.6(CentOS)

Apache API Version20120211

Server Administratorxxxxxx@xxxxxx.com

Hostname:Portxxxx.xxxxx.xxx:0

User/Groupapache(48)/48

Max RequestsPer Child: 0- Keep Alive: on- Max Per Connection: 100

TimeoutsConnection: 60- Keep-Alive: 15

Virtual ServerYes

Server Root/etc/httpd

Loaded Modulescore mod_so http_core mod_access_compat mod_actions mod_alias mod_allowmethods mod_auth_basic mod_auth_digest mod_authn_anon mod_authn_core mod_authn_dbd mod_authn_dbm mod_authn_file mod_authn_socache mod_authz_core mod_authz_dbd mod_authz_dbm mod_authz_groupfile mod_authz_host mod_authz_owner mod_authz_user mod_autoindex mod_cache mod_cache_disk mod_data mod_dbd mod_deflate mod_dir mod_dumpio mod_echo mod_env mod_expires mod_ext_filter mod_filter mod_headers mod_include mod_info mod_log_config mod_logio mod_mime_magic mod_mime mod_negotiation mod_remoteip mod_reqtimeout mod_rewrite mod_setenvif mod_slotmem_plain mod_slotmem_shm mod_socache_dbm mod_socache_memcache mod_socache_shmcb mod_status mod_substitute mod_suexec mod_unique_id mod_unixd mod_userdir mod_version mod_vhost_alias mod_dav mod_dav_fs mod_dav_lock mod_lua prefork mod_proxy mod_lbmethod_bybusyness mod_lbmethod_byrequests mod_lbmethod_bytraffic mod_lbmethod_heartbeat mod_proxy_ajp mod_proxy_balancer mod_proxy_connect mod_proxy_express mod_proxy_fcgi mod_proxy_fdpass mod_proxy_ftp mod_proxy_http mod_proxy_scgi mod_proxy_wstunnel mod_ssl mod_systemd mod_cgi mod_perl mod_php7

以上显示 php7安装成功!

CentOS下PHP安装memcache扩展问题解决方法分享

系统版本是5.2,把安装memcached的方法记录下先:

复制代码

   

代码如下:

cd~/memcached

   wget-c

   wget-c

   #安装libevent

   tar-zxvf libevent-1.4.10-stable.tar.gz

   cd libevent-1.4.10-stable

   ./configure

   make

   make install

   #安装memcached

   cd..

   tar-zxvf memcached-1.2.8.tar.gz

   cd memcached-1.2.8

   ./configure

   make

   make install

   #如果是64位系统,还需要把libevent的文件复制到/wp-content/lib64/下,用来解决error while loading shared libraries的问题

   cp-R/wp-content/local/lib/libevent*/wp-content/lib64/

好了,开始安装php的扩展,恶梦开始了,本以为直接用yum来安装php-devel.x86_64和php-pecl-memcache.x86_64这两个扩展就可以了,可装了后 phpinfo()里根本找不到memcache扩展,把已经装的这两个扩展remove重来,还是不行,goooooooooooooogle,找到了一篇文章《PHP Pecl Memcached module installation problems》,有救喽,先remove掉php-pecl-memcache.x86_64,然后执行了

pecl install memcache

顺利安装上了,打开/etc/php.d/看了下,没有memcache.ini,好吧,手动到/etc/php.ini加上了 extension=memcache.so,好了,重启httpd,刷新 phpinfo(),竟然还没有,我郁闷了。。

回头想想,我好像漏了一个地方没有检查,马上打开/wp-content/lib64/php/modules/查看,果然没有memcache.so,会在哪呢? find-name之,原来躲在/wp-content/local/lib/php/extensions/no-debug-non-zts-20060613/下,复制到/wp-content/lib64/php/modules/再试,久违的 memcache扩展出现了。 T T

Memcached参数说明:

-d选项是启动一个守护进程   -m分配给Memcache使用的内存数量,单位是MB   -u运行Memcache的用户   -l监听的服务器IP地址   -p设置Memcache监听的端口,最好是1024以上的端口   -c最大运行的并发连接数,默认是1024,按照你服务器的负载量来设定   -P设置保存Memcache的pid文件   

启动:

memcached-d-u root-m 128-c 8192

查看状态:

watch“echo stats| nc 127.0.0.1 11211″

状态说明:

uptime:memcached运行的秒数   cmd_get:查询缓存的次数。这两个数据相除一下就能得到平均每秒请求缓存的次数   cmd_set:设置key=value的次数   get_hits:缓存命中的次数。缓存命中率= get_hits/cmd_get* 100%   scurr_items:现在在缓存中的键值对个数   

相关网址:

Libevent:

   Memcached:

   PHP Memcached Extension:

[shell]

[root@~]# pecl install memcache

downloading memcache-2.2.6.tgz...

Starting to download memcache-2.2.6.tgz(35,957 bytes)

..........done: 35,957 bytes

11 source files, building

WARNING: php_bin/opt/php/bin/php appears to have a suffix/bin/php, but config variable php_suffix does not match

running: phpize

Configuring for:

PHP Api Version: 20090626

Zend Module Api No: 20090626

Zend Extension Api No: 220090626

Enable memcache session handler support? [yes]: n

[/shell]

[shell]

running: make INSTALL_ROOT="/var/tmp/pear-build-root/install-memcache-2.2.6" install

Installing shared extensions:/var/tmp/pear-build-root/install-memcache-2.2.6/opt/php/lib/php/extensions/no-debug-non-zts-20090626/

running: find"/var/tmp/pear-build-root/install-memcache-2.2.6"| xargs ls-dils

11370548 4 drwxr-xr-x 3 root root 4096 Jan 6 15:55/var/tmp/pear-build-root/install-memcache-2.2.6

11370602 4 drwxr-xr-x 3 root root 4096 Jan 6 15:55/var/tmp/pear-build-root/install-memcache-2.2.6/opt

11370603 4 drwxr-xr-x 3 root root 4096 Jan 6 15:55/var/tmp/pear-build-root/install-memcache-2.2.6/opt/php

11370604 4 drwxr-xr-x 3 root root 4096 Jan 6 15:55/var/tmp/pear-build-root/install-memcache-2.2.6/opt/php/lib

11370605 4 drwxr-xr-x 3 root root 4096 Jan 6 15:55/var/tmp/pear-build-root/install-memcache-2.2.6/opt/php/lib/php

11370606 4 drwxr-xr-x 3 root root 4096 Jan 6 15:55/var/tmp/pear-build-root/install-memcache-2.2.6/opt/php/lib/php/extensions

11370607 4 drwxr-xr-x 2 root root 4096 Jan 6 15:55/var/tmp/pear-build-root/install-memcache-2.2.6/opt/php/lib/php/extensions/no-debug-non-zts-20090626

11370601 236-rwxr-xr-x 1 root root 235639 Jan 6 15:55/var/tmp/pear-build-root/install-memcache-2.2.6/opt/php/lib/php/extensions/no-debug-non-zts-20090626/memcache.so

Build process completed successfully

Installing'/opt/php/lib/php/extensions/no-debug-non-zts-20090626/memcache.so'

install ok: channel://pecl.php.net/memcache-2.2.6

configuration option"php_ini" is not set to php.ini location

You should add"extension=memcache.so" to php.ini

[/shell]

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