Windows安装memcached图文教程

曾经终败给现在 2022-08-26 13:25 257阅读 0赞

一、下载Memercached For Windows

![点击查看大图][2012052116473971692.jpg]

二、安装步骤

1、解压到指定目录，如：C:\\Memcached\\memcached-win32-1.4.4-14。

2、用cmd打开命令窗口，转到解压的目录，输入 “memcached.exe -d install”。

3、打开控制面板，打开服务，可以看到memcached已经在上面可，如果没有启动，则手动启动一下。

![点击查看大图][2012052116473936986.jpg]

4、    使用telnet命令 验证缓存服务器是否可用。

![点击查看大图][2012052116473976509.jpg]

开始什么都不显示，回车后输入命令  stats  查看统计信息，如下图，说明服务器运作正常。

![点击查看大图][2012052116473942858.jpg]

三、参数介绍

1、    以上的安装和启动都是在默认环境下进行的，在安装时可设置如下参数：

\-p 监听的端口

\-l 连接的IP地址, 默认是本机

\-d start 启动memcached服务

\-d restart 重起memcached服务

\-d stop|shutdown 关闭正在运行的memcached服务

\-d install 安装memcached服务

\-d uninstall 卸载memcached服务

\-u 以的身份运行 (仅在以root运行的时候有效)

\-m 最大内存使用，单位MB。默认64MB

\-M 内存耗尽时返回错误，而不是删除项

\-c 最大同时连接数，默认是1024

\-f 块大小增长因子，默认是1.25

\-n 最小分配空间，key+value+flags默认是48

\-h 显示帮助

如：“memcached -d install -l 127.0.0.1 -m 1024 -c2048”。

2、    如果在安装时没有添加参数，可通过修改注册表信息进行设置，打开注册表，找

<table style="width:1058px; border:1px solid rgb(192,192,192); margin:0px auto; padding:0px!important; border-spacing:0px; border-collapse:collapse; color:rgb(0,0,0); font-size:12px!important; right:auto!important; left:auto!important; float:none!important; vertical-align:baseline!important; overflow:visible!important; bottom:auto!important; line-height:2em!important; font-family:'Courier New',Consolas,'Bitstream Vera Sans Mono',Courier,monospace!important; position:static!important; top:auto!important; height:auto!important; text-align:left!important; outline:0px"> 
 <tbody style="border:0px; padding:0px!important; right:auto!important; left:auto!important; float:none!important; margin:0px; vertical-align:baseline!important; overflow:visible!important; width:auto!important; bottom:auto!important; line-height:2em!important; position:static!important; top:auto!important; height:auto!important; outline:0px"> 
  <tr style="margin:0px; padding:0px!important; border:0px; right:auto!important; left:auto!important; float:none!important; vertical-align:baseline!important; overflow:visible!important; width:auto!important; bottom:auto!important; line-height:2em!important; position:static!important; top:auto!important; height:auto!important; outline:0px"> 
   <td style="margin:0px; padding:3px; border:1px solid rgb(192,192,192); width:1058px; height:auto!important; right:auto!important; left:auto!important; float:none!important; vertical-align:baseline!important; overflow:visible!important; bottom:auto!important; line-height:2em!important; font-family:'Courier New',Consolas,'Bitstream Vera Sans Mono',Courier,monospace!important; position:static!important; top:auto!important; border-collapse:collapse; outline:0px"> HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\memcached</td> 
  </tr> 
 </tbody> 
</table>

在其中有一个“ImagePath”项，值为：

<table style="width:1058px; border:1px solid rgb(192,192,192); margin:0px auto; padding:0px!important; border-spacing:0px; border-collapse:collapse; color:rgb(0,0,0); font-size:12px!important; right:auto!important; left:auto!important; float:none!important; vertical-align:baseline!important; overflow:visible!important; bottom:auto!important; line-height:2em!important; font-family:'Courier New',Consolas,'Bitstream Vera Sans Mono',Courier,monospace!important; position:static!important; top:auto!important; height:auto!important; text-align:left!important; outline:0px"> 
 <tbody style="border:0px; padding:0px!important; right:auto!important; left:auto!important; float:none!important; margin:0px; vertical-align:baseline!important; overflow:visible!important; width:auto!important; bottom:auto!important; line-height:2em!important; position:static!important; top:auto!important; height:auto!important; outline:0px"> 
  <tr style="margin:0px; padding:0px!important; border:0px; right:auto!important; left:auto!important; float:none!important; vertical-align:baseline!important; overflow:visible!important; width:auto!important; bottom:auto!important; line-height:2em!important; position:static!important; top:auto!important; height:auto!important; outline:0px"> 
   <td style="margin:0px; padding:3px; border:1px solid rgb(192,192,192); width:1058px; height:auto!important; right:auto!important; left:auto!important; float:none!important; vertical-align:baseline!important; overflow:visible!important; bottom:auto!important; line-height:2em!important; font-family:'Courier New',Consolas,'Bitstream Vera Sans Mono',Courier,monospace!important; position:static!important; top:auto!important; border-collapse:collapse; outline:0px"> "C:\Memcached\memcached-win32-1.4.4-14\memcached.exe" -d runservice</td> 
  </tr> 
 </tbody> 
</table>

在后面加上“-m 1024 -c2048”。如下图：

![点击查看大图][2012052116474038568.jpg]

3、    输入stats命令后，页面出现的参数介绍。

<table style="width:1075px; border:1px solid rgb(192,192,192); margin:0px auto; padding:0px!important; border-spacing:0px; border-collapse:collapse; color:rgb(0,0,0); font-size:12px!important; right:auto!important; left:auto!important; float:none!important; vertical-align:baseline!important; overflow:visible!important; bottom:auto!important; line-height:2em!important; font-family:'Courier New',Consolas,'Bitstream Vera Sans Mono',Courier,monospace!important; position:static!important; top:auto!important; height:auto!important; text-align:left!important; outline:0px"> 
 <tbody style="border:0px; padding:0px!important; right:auto!important; left:auto!important; float:none!important; margin:0px; vertical-align:baseline!important; overflow:visible!important; width:auto!important; bottom:auto!important; line-height:2em!important; position:static!important; top:auto!important; height:auto!important; outline:0px"> 
  <tr style="margin:0px; padding:0px!important; border:0px; right:auto!important; left:auto!important; float:none!important; vertical-align:baseline!important; overflow:visible!important; width:auto!important; bottom:auto!important; line-height:2em!important; position:static!important; top:auto!important; height:auto!important; outline:0px"> 
   <td style="margin:0px; padding:3px; border:1px solid rgb(192,192,192); width:1075px; height:auto!important; right:auto!important; left:auto!important; float:none!important; vertical-align:baseline!important; overflow:visible!important; bottom:auto!important; line-height:2em!important; font-family:'Courier New',Consolas,'Bitstream Vera Sans Mono',Courier,monospace!important; position:static!important; top:auto!important; border-collapse:collapse; outline:0px"> STAT pid 4356 服务器进程ID<br> STAT uptime 56625 服务器运行时间，单位秒<br> STAT time 1225249079 服务器当前的UNIX时间<br> STAT version1.1.0服务器的版本号<br> STAT pointer_size 64<br> STAT rusage_user 151.845489 该进程累计的用户时间(秒:微妙)<br> STAT rusage_system 121.667603 该进程累计的系统时间(秒:微妙)<br> STAT ibuffer_size 4096<br> STAT curr_connections 13 连接数量<br> STAT total_connections 54136 服务器运行以来接受的连接总数<br> STAT connection_structures 318 服务器分配的连接结构的数量<br> STAT cmd_get 100595 取回请求总数<br> STAT cmd_set 6510 存储请求总数<br> STAT get_hits 96543 请求成功的总次数<br> STAT get_misses 4052 请求失败的总次数<br> STAT bytes_read 4427679 服务器从网络读取到的总字节数<br> STAT bytes_written 6585596 服务器向网络发送的总字节数</td> 
  </tr> 
 </tbody> 
</table>

备注：

uptime 是memcached运行的秒数，

cmd\_get是查询缓存的次数。 cmd\_get/uptime得到平均每秒请求缓存的次数。

cmd\_set是设置key=>value的次数。整个memcached是个大hash，用cmd\_get没有找到的内容，就会调用cmd\_set写进缓存里。

get\_hits是缓存命中的次数，缓存命中率 = get\_hits/cmd\_get \*100%。

get\_misses加上get\_hits等于cmd\_get。

total\_itemscurr\_items表示现在在缓存中的键值对个数。

total\_items == cmd\_set == get\_misses，不过当可用最大内存用光时，如果memcached设置为删掉内容，上面的等式就不成立了。

[2012052116473971692.jpg]: /images/20220824/140d3aca064647899c319358fce7ff5f.png
[2012052116473936986.jpg]: /images/20220824/33ac43a53aaf4c069af37b8aba12b531.png
[2012052116473976509.jpg]: /images/20220824/5e546148c06143e29af46475bd50957b.png
[2012052116473942858.jpg]: /images/20220824/e6cb23a0946f4f26bc3f54178bf56eef.png
[2012052116474038568.jpg]: /images/20220824/7b65a3352e644966bcccdc5bd718843f.png