mysql cluster Table of Contents 15.1. mysql cluster Overview 15.2. Basic mysql cluster Concepts 15.2.1. mysql cluster Nodes, Node Groups, Replicas, and Partitions 15.3. Simple Multi-Computer How-To 15.3.1. Hardware, Software, and Networking 15.3.2. Multi-Computer Installation 15.3.3. Multi-Computer Configuration 15.3.4. Initial Startup 15.3.5. Loading Sample Data and Performing Quer...
看大家对2台机器互相复制很有兴趣，我原来也做过，似乎没什么必要，除非真的要负载均衡。个人理解机器之间的复制是一种备份的好方法。其实也可以起到一定的负载作用，比如对只需要读数据库的服务，例如dns服务器。 既然非要做双机复制，我个人觉得还不如用cluster，以前也稍微做个一次， 但是没有深入下去。 不知道有没有对clushter掌握的很透彻的大人出来讲讲这方面的知识。
mysql cluster is a real-time open source transactional database designed for fast, always-on access to data under high throughput conditions. It is available as both open source and commercial editions. The Community (OSS) Edition is available from this page under the free software/opensource GNU General Public License (commonly known as the "GPL") mysql cluster is provided as a separate download...
由于 mysqlcluster 完全使用RAM 来作数据(包含索引)的抄写，所以data-node依照数据库的使用量需有相应足够的 RAM，其两者关系可以参考官方的算法。 这个cluster除了可以做到redundancy，还能透过多个datanode做到load balance。 实做环境介绍 架构示意图如下，图片引用自官方网站的数据，图标内的IP请以上述表格所列的为主，而且本篇实作将Management node和 SQLnode装在同一台，与下图有些不同。 ...
网上有很多关于mysql cluster的配置文档，可都是讲mysql cluster如何搭建以及高可以用的测试，还没有发现和应用程序整合的完整配置，因此我想到了图中的应用，不知生产环境中是否可行，请高手们指点一二，给点建议
On data node1 [root@www ~]# netstat -anp Active Internet connections (servers and established) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 10.20.15.106:2202 0.0.0.0:* LISTEN 4965/ndbd On management node [root@managementserver ~]# netstat -anp Active Internet connections (s...
官方指南里面的online backup of mysql cluster 讲到使用ndb_mgm这个management node的客户端进行备份，使用ndb_restore做恢复。比较复杂。 另外可以使用mysqldump进行备份，这个可以参考下面的。 Using mysqldump for Backups Another way you can make backups is by using a tool called mysqldump. If you have been using mysql with other storage engines, this tool should be familiar to you. Using mysqldump to bac...
mysql cluster mysql> select version(); +-----------------------------------+ | version() | +-----------------------------------+ | 5.1.27-ndb-6.3.17-cluster-gpl-log | +-----------------------------------+ 1 row in set (0.01 sec) mysql> drop table test_t1; Query OK, 0 rows affected (2.64 sec) mysql> CREATE TABLE `test_t1` ( -> `feedid` mediumint(8) unsigned NOT NU...
[root@managementserver mysql-cluster]# cat config.ini [NDBD DEFAULT] NoOfReplicas=2 # Number of replicas DataMemory=1024M # How much memory to allocate for data storage IndexMemory=128M # How much memory to allocate for index storage # For DataMemory and IndexMemory, we have used the # default values. Since the "world" database takes up ...
