MYSQL数据库mysql中使用UDF自动同步memcached效率笔记
发布时间:2020-12-12 01:00:59 所属栏目:MySql教程 来源:网络整理
导读:《MYSQL数据库mysql中使用UDF自动同步memcached效率笔记》要点: 本文介绍了MYSQL数据库mysql中使用UDF自动同步memcached效率笔记,希望对您有用。如果有疑问,可以联系我们。 相关主题:memcache扩展/键值KeyValue存储数据库 接上篇:mysql使用mysql-udf-ht
《MYSQL数据库mysql中使用UDF自动同步memcached效率笔记》要点: 相关主题:memcache扩展 / 键值KeyValue存储数据库 接上篇:mysql使用mysql-udf-http效率测试笔记,这次不使用rest架构,而是使用:libmemcached和memcached_functions_mysql,测试版本是:libmemcached-0.34.tar.gz和memcached_functions_mysql-0.9.tar.gz,其它版本配对都有问题,我安装测试过有问题的版本有: 代码如下: memcached_functions_mysql-1.1在: libmemcached-0.49libmemcached-0.48libmemcached-0.47libmemcached-0.30libmemcached-0.43libmemcached-0.42 下安装有错误 memcached_functions_mysql-0.10在: libmemcached-0.42下安装有错误 memcached_functions_mysql-0.8在: libmemcached-0.49libmemcached-0.48libmemcached-0.47libmemcached-0.44libmemcached-0.43 libmemcached-0.42下安装有错误 MySQL测试版本:5.1.55,操作系统Centos5.4 64bit,内存2G 安装libmemcached-0.34和memcached_functions_mysql-0.9, 代码如下: [root@sunss24 libmemcached-0.34]#./configure --with-memcached=/home/memcache/bin/memcached [root@sunss24 libmemcached-0. 34]# make [root@sunss24 libmemcached-0. 34]# make install 再运行一下memstat,算成功了 [root@sunss24 ~]# ln -s /usr/local/lib/libmemcached.so.3 /usr/lib/ [root@sunss24 ~]# cd memcached_functions_mysql-0.9 [root@sunss24 memcached_functions_mysql-0.9]# ./configure --with-mysql=/usr/local/mysql/bin/mysql_config --libdir=/usr/local/mysql/lib/ [root@sunss memcached_functions_mysql-0.9]# make && make install 安装完成后将UDFs加载到MySQL中: 代码如下: mysql> show variables like "%plugin%"; +---------------+-----------------------------------+ | Variable_name | Value | +---------------+-----------------------------------+ | plugin_dir | /usr/local/mysql/lib/mysql/plugin | +---------------+-----------------------------------+ 1 row in set (0.00 sec) [root@sunss ~]# find / -name "libmemcached_functions_mysql.so" /usr/local/mysql/lib/libmemcached_functions_mysql.so /root/memcached_functions_mysql-0.9/src/.libs/libmemcached_functions_mysql.so You have new mail in /var/spool/mail/root [root@sunss ~]# cp /usr/local/mysql/lib/libmemcached_functions_mysql.so /usr/local/mysql/lib/mysql/plugin/ [root@sunss ~]# cd memcached_functions_mysql-0.9/ [root@sunss ~]#cd sql/ mysql> source install_functions.sql; 查看各种版本: 代码如下: mysql> select memc_udf_version(); +--------------------+ | memc_udf_version() | +--------------------+ | 0.9 | +--------------------+ 1 row in set (0.00 sec) mysql> select memc_libmemcached_version(); +-----------------------------+ | memc_libmemcached_version() | +-----------------------------+ | 0.34 | +-----------------------------+ 1 row in set (0.00 sec) mysql> 遇到问题: 代码如下: No package 'libmemcached' found Consider adjusting the PKG_CONFIG_PATH environment variable if you installed software in a non-standard prefix. Alternatively,you may set the environment variables DEPS_CFLAGS and DEPS_LIBS to avoid the need to call pkg-config. See the pkg-config man page for more details. 解决办法: [root@sunss24 memcached_functions_mysql-0.9]# whereis pkgconfig [root@sunss24 memcached_functions_mysql-0.9]# export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:/usr/lib/pkgconfig 导出所有memcache内容: 使用:memcached-hack.zip 效率测试: 插入: 代码如下: <?php include_once("gettime.php"); $btime = getmicrotime(); $i = 0; $mem = new Memcache(); $mem->addServer('192.168.0.10',11212); $local_db = mysql_connect("192.168.0.208","sunss","123456"); if(!$local_db) { die('Could not connect: '.mysql_error()); } $local_db_sel = mysql_select_db("test",$local_db); mysql_query("set names utf8",$local_db); while ( $i < 1000) { $re_sql = "insert into urls (id,url) values ($i,'www.gongchang.com')"; $res = mysql_query($re_sql,$local_db); $i++; } mysql_close($local_db); $etime = getmicrotime(); $runTime = round($etime - $btime,4); echo "runTime: ".$runTime."rn"; ?> 1000条,插入时间:runTime: 1.4072 删除: 代码如下: <?php include_once("gettime.php"); $btime = getmicrotime(); $i = 0; $mem = new Memcache(); $mem->addServer('192.168.0.10',$local_db); while ( $i < 1000) { //$re_sql = "insert into urls (id,'www.gongchang.com')"; $re_sql = "delete from urls where id=".$i; //echo "re_sql_1: ".$re_sql."n"; $res = mysql_query($re_sql,4); echo "runTime: ".$runTime."rn"; ?> 删除1000条,运行时间:runTime: 1.5534 更新未作 结论:每秒query大概650条记录,比上次的mysql-udf-http快多了 (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |