MySQL Cluster写入效率测试
MySQL Cluster使用到目前为止遇到渴望得到答案的问题,也是直接影响使用的问题就是MySQL Cluster的写入效率问题和Cluster是否适合大数据存储、如何配置存储的问题。 在之前的测试中MySQL Cluster的写入效率一直不佳,这也是直接影响能否使用MySQL Cluster的
MySQL Cluster使用到目前为止遇到渴望得到答案的问题,也是直接影响使用的问题就是MySQL Cluster的写入效率问题和Cluster是否适合大数据存储、如何配置存储的问题。
在之前的测试中MySQL Cluster的写入效率一直不佳,这也是直接影响能否使用MySQL Cluster的关键。现在我们来仔细测试一下。使用的环境略有变化。
Data节点的内存扩展为4G。
集群配置如下:
[ndbd default] # Options affecting ndbd processes on all data nodes: NoOfReplicas=2 # Number of replicas DataMemory=2000M # How much memory to allocate for data storage IndexMemory=300M # How much memory to allocate for index storage # For DataMemory and IndexMemory, we have used the # default values. Since the "world" database takes up # only about 500KB, this should be more than enough for # this example Cluster setup. MaxNoOfConcurrentOperations=1200000 MaxNoOfLocalOperations=1320000
测试代码如下:
/** * 向数据库中插入数据 * * @param conn * @param totalRowCount * @param perRowCount * @param tableName * @author lihzh(OneCoder) * @throws SQLException * @date 2013 -1 -17 下午1:57:10 */ private void insertDataToTable(Connection conn, String tableName, long totalRowCount, long perRowCount, long startIndex) throws SQLException { conn.setAutoCommit( false); String sql = "insert into " + tableName + " VALUES(?,?,?)"; System. out.println( "Begin to prepare statement."); PreparedStatement statement = conn.prepareStatement(sql); long sum = 0L; for ( int j = 0; j <p> 分下列情景进行写入测试。</p> <p> 数据加载、写入在内存中时,在独立的新库、新表中一次写入100,1000,10000,50000条记录,分别记录其耗时情况。(5次平均)</p> <pre class="brush:php;toolbar:false"> 100:260ms 1000:1940ms 10000:17683ms(12000-17000) 50000: 93308、94730、90162、94849、162848
与普通单点MySQL写入效率进行对比(2G内存)
100:182ms 1000:1624ms 10000:14946ms 50000:84438ms
双线程并发写入测试
由于只有两个SQL节点,所以这里只采用双线程写入的方法进行测试。代码上采用了简单的硬编码
/** * 多线程并行写入测试 * * @author lihzh(OneCoder) * @blog http://www.coderli.com * @date 2013 -2 -27 下午3:39:56 */ private void parallelInsert() { final long start = System. currentTimeMillis(); Thread t1 = new Thread( new Runnable() { @Override public void run() { try { Connection conn = getConnection(DB_IPADDRESS, DB_PORT, DB_NAME, DB_USER, DB_PASSOWRD); MySQLClusterDataMachine dataMachine = new MySQLClusterDataMachine(); dataMachine.insertDataToTable(conn, TABLE_NAME_DATAHOUSE, 500, 100, 0); long end1 = System.currentTimeMillis(); System. out.println( "Thread 1 cost: " + (end1 - start)); } catch (SQLException e) { e.printStackTrace(); } } }); Thread t2 = new Thread( new Runnable() { @Override public void run() { try { Connection conn = getConnection(DB_IPADDRESS_TWO, DB_PORT, DB_NAME, DB_USER, DB_PASSOWRD); MySQLClusterDataMachine dataMachine = new MySQLClusterDataMachine(); dataMachine.insertDataToTable(conn, TABLE_NAME_DATAHOUSE, 500, 100, 500); long end2 = System.currentTimeMillis(); System. out.println( "Thread 2 cost: " + (end2 - start)); } catch (SQLException e) { e.printStackTrace(); } } }); t1.start(); t2.start(); }
测试结果:
(总条数/每次) | 线程1(总/平均- 各写一半数据) | 线程2 | 并行总耗时 | 单线程单点 |
1000/100 | 985/197 | 1005/201 | 1005/201 | 2264/226 |
10000/1000 | 9223/1836 | 9297/1850 | 9297/1850 | 19405/1940 |
100000/10000 | 121425/12136 | 122081/12201 | 121425/12136 |
148518/14851 |
从结果可以看出,在10000条以下批量写入的情况下,SQL节点的处理能力是集群的瓶颈,双线程双SQL写入相较单线程单节点效率可提升一倍。但是当批量写入数据达到一定数量级,这种效率的提升就不那么明显了,应该是集群中的其他位置也产生了瓶颈。
注:由于各自测试环境的差异,测试数据仅可做内部比较,不可外部横向对比。仅供参考。
写入测试,要做的还很多,不过暂时告一段落。大数据存储和查询测试,随后进行。
原文地址:MySQL Cluster写入效率测试, 感谢原作者分享。

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

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

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



MySQL is an open source relational database management system. 1) Create database and tables: Use the CREATEDATABASE and CREATETABLE commands. 2) Basic operations: INSERT, UPDATE, DELETE and SELECT. 3) Advanced operations: JOIN, subquery and transaction processing. 4) Debugging skills: Check syntax, data type and permissions. 5) Optimization suggestions: Use indexes, avoid SELECT* and use transactions.

You can open phpMyAdmin through the following steps: 1. Log in to the website control panel; 2. Find and click the phpMyAdmin icon; 3. Enter MySQL credentials; 4. Click "Login".

MySQL is an open source relational database management system, mainly used to store and retrieve data quickly and reliably. Its working principle includes client requests, query resolution, execution of queries and return results. Examples of usage include creating tables, inserting and querying data, and advanced features such as JOIN operations. Common errors involve SQL syntax, data types, and permissions, and optimization suggestions include the use of indexes, optimized queries, and partitioning of tables.

MySQL is chosen for its performance, reliability, ease of use, and community support. 1.MySQL provides efficient data storage and retrieval functions, supporting multiple data types and advanced query operations. 2. Adopt client-server architecture and multiple storage engines to support transaction and query optimization. 3. Easy to use, supports a variety of operating systems and programming languages. 4. Have strong community support and provide rich resources and solutions.

Redis uses a single threaded architecture to provide high performance, simplicity, and consistency. It utilizes I/O multiplexing, event loops, non-blocking I/O, and shared memory to improve concurrency, but with limitations of concurrency limitations, single point of failure, and unsuitable for write-intensive workloads.

MySQL and SQL are essential skills for developers. 1.MySQL is an open source relational database management system, and SQL is the standard language used to manage and operate databases. 2.MySQL supports multiple storage engines through efficient data storage and retrieval functions, and SQL completes complex data operations through simple statements. 3. Examples of usage include basic queries and advanced queries, such as filtering and sorting by condition. 4. Common errors include syntax errors and performance issues, which can be optimized by checking SQL statements and using EXPLAIN commands. 5. Performance optimization techniques include using indexes, avoiding full table scanning, optimizing JOIN operations and improving code readability.

MySQL's position in databases and programming is very important. It is an open source relational database management system that is widely used in various application scenarios. 1) MySQL provides efficient data storage, organization and retrieval functions, supporting Web, mobile and enterprise-level systems. 2) It uses a client-server architecture, supports multiple storage engines and index optimization. 3) Basic usages include creating tables and inserting data, and advanced usages involve multi-table JOINs and complex queries. 4) Frequently asked questions such as SQL syntax errors and performance issues can be debugged through the EXPLAIN command and slow query log. 5) Performance optimization methods include rational use of indexes, optimized query and use of caches. Best practices include using transactions and PreparedStatemen

Effective monitoring of Redis databases is critical to maintaining optimal performance, identifying potential bottlenecks, and ensuring overall system reliability. Redis Exporter Service is a powerful utility designed to monitor Redis databases using Prometheus. This tutorial will guide you through the complete setup and configuration of Redis Exporter Service, ensuring you seamlessly build monitoring solutions. By studying this tutorial, you will achieve fully operational monitoring settings
