CentOS(x86_64)下PHP安装memcache扩展问题解决方法分享

安静的竹子 發表於 2024-2-16 00:00:00

CentOS(x86_64)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： 
<div class="msgheader" style='margin: 3px auto 0px; padding: 0px 3px; outline: none; line-height: 21.6px; clear: both; border-width: 1px; border-style: solid; border-color: rgb(0, 153, 204); background: rgb(246, 251, 255); overflow: hidden; font-family: tahoma, arial, "Microsoft YaHei";'>

复制代码

代码如下:
</div>
<p class="msgborder" style='margin: 0px auto 3px; padding: 0px 3px; outline: none; line-height: 25.2px; font-size: 14px; clear: both; border-right: 1px solid rgb(0, 153, 204); background: rgb(221, 237, 251); overflow: hidden; border-left: 1px solid rgb(0, 153, 204); word-break: break-all; border-bottom: 1px solid rgb(0, 153, 204); word-wrap: break-word; font-family: tahoma, arial, "Microsoft YaHei";'>
 
cd ~/memcached 
wget -c http://www.monkey.org/~provos/libevent-1.4.10-stable.tar.gz 
wget -c http://memcached.googlecode.com/files/memcached-1.2.8.tar.gz 
#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
<blockquote style='margin: 0px auto 10px; padding: 4px 4px 4px 10px; outline: none; background: rgb(244, 249, 251); border-left: 4px solid rgb(116, 205, 230); width: 665px; font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'>

pecl install memcache
</blockquote>

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

<img style="max-width:100%!important;height:auto!important;"title="CentOS(x86_64)下PHP安装memcache扩展问题解决方法分享" alt="CentOS(x86_64)下PHP安装memcache扩展问题解决方法分享" class="alignnone size-medium wp-image-608" src="https://zhuji.jb51.net/uploads/img/202305/00a091523b2510efc1a01f9b0060722c.jpg">

Memcached参数说明：
<ul style='margin: 0px 0px 0px 25px; padding: 0.3em 0px; outline: none; list-style: decimal; line-height: 25px; word-break: break-word; font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'>
<li>

-d选项是启动一个守护进程
</li>
<li>

-m分配给Memcache使用的内存数量，单位是MB
</li>
<li>

-u运行Memcache的用户
</li>
<li>

-l监听的服务器IP地址
</li>
<li>

-p设置Memcache监听的端口,最好是1024以上的端口
</li>
<li>

-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
</li>
<li>

-P设置保存Memcache的pid文件
</li>
</ul>

启动：
<blockquote style='margin: 0px auto 10px; padding: 4px 4px 4px 10px; outline: none; background: rgb(244, 249, 251); border-left: 4px solid rgb(116, 205, 230); width: 665px; font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'>

memcached -d -u root -m 128 -c 8192
</blockquote>

查看状态：
<blockquote style='margin: 0px auto 10px; padding: 4px 4px 4px 10px; outline: none; background: rgb(244, 249, 251); border-left: 4px solid rgb(116, 205, 230); width: 665px; font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'>

watch “echo stats | nc 127.0.0.1 11211″
</blockquote>

<img style="max-width:100%!important;height:auto!important;"title="CentOS(x86_64)下PHP安装memcache扩展问题解决方法分享" alt="CentOS(x86_64)下PHP安装memcache扩展问题解决方法分享" class="alignnone size-full wp-image-609" src="https://zhuji.jb51.net/uploads/img/202305/792136b293f2a6d0c418db8cb4da3b55.jpg">

状态说明：
<ul style='margin: 0px 0px 0px 25px; padding: 0.3em 0px; outline: none; list-style: decimal; line-height: 25px; word-break: break-word; font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'>
<li>

uptime：memcached运行的秒数
</li>
<li>

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
</li>
<li>


</li>
<li>

cmd_set：设置key=>value的次数
</li>
<li>

get_hits：缓存命中的次数。缓存命中率 = get_hits/cmd_get * 100%
</li>
<li>

scurr_items：现在在缓存中的键值对个数
</li>
</ul>

相关网址：

Libevent：http://www.monkey.org/~provos/libevent/ 
Memcached：http://danga.com/memcached/ 
PHP Memcached Extension：http://pecl.php.net/package/memcache

 # 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? : n 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

頁: [1]

琼殿技术论坛's Archiver

CentOS(x86_64)下PHP安装memcache扩展问题解决方法分享