search
HomeDatabaseMysql Tutorial Qihoo360 Atlas MySQL Proxy测试小结

Qihoo360将他们改造后的MySQL Proxy项目开源了,至于为什么起名Atlas就不清楚了,项目地址:https://github.com/Qihoo360/Atlas。我2008年曾测试过官方版本的MySQL Proxy,主要是看中其连接池以及读写分离功能,不过当时的版本效率实在太差,后面就没再关注

Qihoo360将他们改造后的MySQL Proxy项目开源了,至于为什么起名Atlas就不清楚了,项目地址:https://github.com/Qihoo360/Atlas。我2008年曾测试过官方版本的MySQL Proxy,主要是看中其连接池以及读写分离功能,不过当时的版本效率实在太差,后面就没再关注了。这几天对Qihoo360 Atlas做了下测试,下面是测试结果。

  • 环境准备

服务器端:

测试机 DELL PE R710

CPU E5620 @ 2.40GHz(4 core, 8 threads) * 2

内存 24G

RAID卡 PERC H700 Integrated, 512MB, BBU, 12.10.1-0001

系统 Red Hat Enterprise Linux Server release 6.4 (Santiago)

内核 2.6.32-358.el6.x86_64 #1 SMP

raid级别 raid 5(10K RPM SAS 300G * 6)

文件系统 xfs

硬盘 10K RPM SAS 300G * 6

Proxy代理层端:

测试机 HP DL360 G5

CPU E5405@ 2.00GHz(4 core, 4 threads) * 2

内存 16G

RAID卡 P400i 256MB, BBU,4.12

系统 Red Hat Enterprise Linux Server release 6.1 (Santiago)

内核 2.6.32-131.0.15.el6.x86_64#1 SMP

raid级别 raid 0(10K RPM SAS 146G * 2)

文件系统 ext4

硬盘 10K RPM SAS 146G* 2

  • MySQL及Atlas关键配置
  • [yejr@imysql.com]# cat /etc/my.cnf max_connections = 2048 max_connect_errors = 100000 [yejr@imysql.com]# cat /usr/local/mysql-proxy/conf/13306.cnf event-threads = 16 min-idle-connections = 768
  • 测试方案

1. 采用tpcc-mysql进行压测,但由于Atlas不支持PREPARE,未遂;

2. 采用sysbench进行压测,但由于Atlas当前版本对长连接支持不佳,出现大量的connection lost告警,测试结果几乎无效,忽略;

3. 采用开发者提供的一个简易C程序,进行并发多线程短连接测试,虽然有部分connection lost告警,但比用sysbench时少多了,结果有效;

开发者提供的C程序,若有需要可向开发者提出,由于未得到授权,我不方便将其放上来供下载。

测试模式:

测试程序并发数:32、64、128、192、256、320、384、448、512、576、640,每线程完成10000次请求,每次请求都是随机的SELECT、INSERT、UPDATE,,每次UPDATE都是基于主键条件,INSERT就不用说了,SELECT有4种随机模式:

a)/*master*/SELECT * FROM mysqlslap.t1 WHERE /*waht*/id in (N1, N2, N3)

b)SELECT * FROM mysqlslap.t1 WHERE id = N

c)SELECT * FROM mysqlslap.t1 WHERE id in (N1, N2) limit 1

d)/*master*/SELECT * FROM /*test*/ mysqlslap.t1 WHERE id = %d

也就是SELECT请求会模拟强制读MASTER,或者让Atlas自动分配。

  • 测试脚本

测试脚本很简单:

[yejr@imysql.com]# cat Atlas_benchmark.sh #!/bin/bash MYSERVER=10.0.0.1 PORT=13306 export LD_LIBRARY_PATH=/usr/local/mysql/lib/mysql for THREAD in 32 64 128 192 256 320 384 448 512 576 640 do #记录日志 exec 3>&1 4>&2 1>> check_1m3s_1server_1proxy_${THREAD}_${RANDOM}.log 2>&1 count=1 max=5 #每种并发模式都进行5轮测试,最后取结果平均值 while [ $count -le ${max} ] do echo "./check -t short -c ${THREAD} -h ${MYSERVER} -P ${PORT} -u proxy -p proxy -n 10000" ./check -t short -c ${THREAD} -h ${MYSERVER} -P ${PORT}-u proxy -p proxy -n 10000 count=`expr ${count} + 1` #每次测试完,都会暂停60秒,让数据库歇歇 :) if [ ${count} -lt ${max} ] ; then sleep 60 fi done done

测试完后对结果进行整理汇总即可。

  • 测试结果

测试成功次数

 

Atlas Proxy并发测试成功次数 - 20130911

Atlas Proxy并发测试成功次数 – 20130911

 

测试成功率

 

Atlas Proxy并发测试成功率 - 20130911

Atlas Proxy并发测试成功率 – 20130911

 

  • 结论及建议

Qihoo360开源的精神值得学习,不过目前来看Atlas还有一定提升空间,不妨等它更加稳定并且能支持更多特性后再上线使用不迟。

但是对那些苦于无法将slave从库资源利用起来的同学们来说,在前端加一层Atlas倒是很不错的选择,毕竟其他可选的产品太少了,只要程序中不用到特殊的SQL一般也不会有大问题,注意提高程序对数据的容错性即可。

 

 

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
What are stored procedures in MySQL?What are stored procedures in MySQL?May 01, 2025 am 12:27 AM

Stored procedures are precompiled SQL statements in MySQL for improving performance and simplifying complex operations. 1. Improve performance: After the first compilation, subsequent calls do not need to be recompiled. 2. Improve security: Restrict data table access through permission control. 3. Simplify complex operations: combine multiple SQL statements to simplify application layer logic.

How does query caching work in MySQL?How does query caching work in MySQL?May 01, 2025 am 12:26 AM

The working principle of MySQL query cache is to store the results of SELECT query, and when the same query is executed again, the cached results are directly returned. 1) Query cache improves database reading performance and finds cached results through hash values. 2) Simple configuration, set query_cache_type and query_cache_size in MySQL configuration file. 3) Use the SQL_NO_CACHE keyword to disable the cache of specific queries. 4) In high-frequency update environments, query cache may cause performance bottlenecks and needs to be optimized for use through monitoring and adjustment of parameters.

What are the advantages of using MySQL over other relational databases?What are the advantages of using MySQL over other relational databases?May 01, 2025 am 12:18 AM

The reasons why MySQL is widely used in various projects include: 1. High performance and scalability, supporting multiple storage engines; 2. Easy to use and maintain, simple configuration and rich tools; 3. Rich ecosystem, attracting a large number of community and third-party tool support; 4. Cross-platform support, suitable for multiple operating systems.

How do you handle database upgrades in MySQL?How do you handle database upgrades in MySQL?Apr 30, 2025 am 12:28 AM

The steps for upgrading MySQL database include: 1. Backup the database, 2. Stop the current MySQL service, 3. Install the new version of MySQL, 4. Start the new version of MySQL service, 5. Recover the database. Compatibility issues are required during the upgrade process, and advanced tools such as PerconaToolkit can be used for testing and optimization.

What are the different backup strategies you can use for MySQL?What are the different backup strategies you can use for MySQL?Apr 30, 2025 am 12:28 AM

MySQL backup policies include logical backup, physical backup, incremental backup, replication-based backup, and cloud backup. 1. Logical backup uses mysqldump to export database structure and data, which is suitable for small databases and version migrations. 2. Physical backups are fast and comprehensive by copying data files, but require database consistency. 3. Incremental backup uses binary logging to record changes, which is suitable for large databases. 4. Replication-based backup reduces the impact on the production system by backing up from the server. 5. Cloud backups such as AmazonRDS provide automation solutions, but costs and control need to be considered. When selecting a policy, database size, downtime tolerance, recovery time, and recovery point goals should be considered.

What is MySQL clustering?What is MySQL clustering?Apr 30, 2025 am 12:28 AM

MySQLclusteringenhancesdatabaserobustnessandscalabilitybydistributingdataacrossmultiplenodes.ItusestheNDBenginefordatareplicationandfaulttolerance,ensuringhighavailability.Setupinvolvesconfiguringmanagement,data,andSQLnodes,withcarefulmonitoringandpe

How do you optimize database schema design for performance in MySQL?How do you optimize database schema design for performance in MySQL?Apr 30, 2025 am 12:27 AM

Optimizing database schema design in MySQL can improve performance through the following steps: 1. Index optimization: Create indexes on common query columns, balancing the overhead of query and inserting updates. 2. Table structure optimization: Reduce data redundancy through normalization or anti-normalization and improve access efficiency. 3. Data type selection: Use appropriate data types, such as INT instead of VARCHAR, to reduce storage space. 4. Partitioning and sub-table: For large data volumes, use partitioning and sub-table to disperse data to improve query and maintenance efficiency.

How can you optimize MySQL performance?How can you optimize MySQL performance?Apr 30, 2025 am 12:26 AM

TooptimizeMySQLperformance,followthesesteps:1)Implementproperindexingtospeedupqueries,2)UseEXPLAINtoanalyzeandoptimizequeryperformance,3)Adjustserverconfigurationsettingslikeinnodb_buffer_pool_sizeandmax_connections,4)Usepartitioningforlargetablestoi

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

PhpStorm Mac version

PhpStorm Mac version

The latest (2018.2.1) professional PHP integrated development tool

Atom editor mac version download

Atom editor mac version download

The most popular open source editor

WebStorm Mac version

WebStorm Mac version

Useful JavaScript development tools

Dreamweaver Mac version

Dreamweaver Mac version

Visual web development tools

SublimeText3 Linux new version

SublimeText3 Linux new version

SublimeText3 Linux latest version