MySQL Cluster 开发环境简明部署(中文)
fmms
13年前
主要内容
1. 获取; 2. 安装; 3. 配置; 4. 运行; 5. 测试; 6. 停止; 7. 总结
1. 获取
这个不必多言吧,到 MySQL 网站上面下载就是了。MySQL Cluster 的英文部署测试手册很简明,这里和其内容基本一样。喜欢读英文版的朋友可以直接下载,略过本文。
2. 安装
先解压,然后创建一个 symbolic link:
michael@linux:~$ tar xvf mysql-cluster-gpl-7.2.4-linux2.6-x86_64.tar michael@linux:~$ ln -s mysql-cluster-gpl-7.2.4-linux2.6-x86_64 mysqlc
如果你愿意,可以将~/mysqlc/bin
加入到你的 path 里,方便使用。
3. 配置
作为在开发环境上第一次部署,还是以测试为主要目的。一个完整的 MySQL Cluster 由 MySQL Server,Data Nodes,Management Node 三部分组成。首先我们为它们创建一些必须的目录:
michael@linux:~$ mkdir mysql-cluster michael@linux:~$ cd mysql-cluster michael@linux:~$ mkdir conf ndb_data mysqld_data
然后在conf
目录下创建如下两个文件,分别是config.ini
和my.cnf
,内容如下:
config.ini
用于 MySQL Server 的配置,端口号port
根据你自己的情况设定。
[mysqld] ndbcluster datadir=/home/user1/my_cluster/mysqld_data basedir=/home/user1/mysqlc port=5050
my.cnf
该文件用于配置各结点的 NodeId 和 Data Nodes 与 Management Node 的数据目录。
[ndb_mgmd] hostname=localhost datadir=/home/user1/my_cluster/ndb_data NodeId=1 [ndbd default] noofreplicas=2 datadir=/home/user1/my_cluster/ndb_data [ndbd] hostname=localhost NodeId=3 [ndbd] hostname=localhost NodeId=4 [mysqld] NodeId=50
这时你的目录结构应该如下:
~ +-- /mysql-cluster-gpl-7.2.4-linux2.6-x86_64 +-- /mysqlc -> mysql-cluster-gpl-7.2.4-linux2.6-x86_64 +-- /mysql-cluster +-- /conf +-- /ndb_data +-- /mysqld_data
4. 运行
MySQL Cluster 的启动顺序是有要求的,如下:
- Management Node
- Data Nodes
- MySQL Server
命令如下:
michael@linux:~$ cd ../mysql-cluster michael@linux:~/mysql-cluster$ $HOME/mysqlc/bin/ndb_mgmd -f conf/config.ini --initial --configdir=$HOME/mysql-cluster/conf/ michael@linux:~/mysql-cluster$ $HOME/mysqlc/bin/ndbd -c localhost:1186 michael@linux:~/mysql-cluster$ $HOME/mysqlc/bin/ndbd -c localhost:1186
检查已经启动的结点的状态,命令为:
poecahnt@linux:~$ $HOME/mysqlc/bin/ndb_mgm -e show
输出如下:
Connected to Management Server at: localhost:1186 Cluster Configuration --------------------- [ndbd(NDB)] 2 node(s) id=3 @127.0.0.1 (mysql-5.5.19 ndb-7.2.4, Nodegroup: 0, Master) id=4 @127.0.0.1 (mysql-5.5.19 ndb-7.2.4, Nodegroup: 0) [ndb_mgmd(MGM)] 1 node(s) id=1 @127.0.0.1 (mysql-5.5.19 ndb-7.2.4) [mysqld(API)] 1 node(s) id=50 @127.0.0.1 (mysql-5.5.19 ndb-7.2.4)
表示已经可以启动 MySQL Server 了。最后启动 MySQL Server,命令为:
michael@linux:~/mysql-cluseter$ $HOME/mysqlc/bin/mysqld --defaults-file=conf/my.cnf &
输出信息如下:
120223 15:29:02 InnoDB: The InnoDB memory heap is disabled 120223 15:29:02 InnoDB: Mutexes and rw_locks use GCC atomic builtins 120223 15:29:02 InnoDB: Compressed tables use zlib 1.2.3 120223 15:29:02 InnoDB: Using Linux native AIO 120223 15:29:02 InnoDB: Initializing buffer pool, size = 128.0M 120223 15:29:02 InnoDB: Completed initialization of buffer pool 120223 15:29:02 InnoDB: highest supported file format is Barracuda. 120223 15:29:02 InnoDB: Waiting for the background threads to start 120223 15:29:03 InnoDB: 1.1.8 started; log sequence number 1595675 120223 15:29:04 [Note] NDB: NodeID is 50, management server 'localhost:1186' 120223 15:29:04 [Note] NDB[0]: NodeID: 50, all storage nodes connected 120223 15:29:04 [Warning] NDB: server id set to zero - changes logged to bin log with server id zero will be logged with another server id by slave mysqlds 120223 15:29:04 [Note] Starting Cluster Binlog Thread 120223 15:29:04 [Note] Event Scheduler: Loaded 0 events 120223 15:29:04 [Note] $HOME/mysqlc/bin/mysqld: ready for connections. Version: '5.5.19-ndb-7.2.4-gpl' socket: '/tmp/mysql.sock' port: 5050 MySQL Cluster Community Server (GPL) 120223 15:29:05 [Note] NDB: Creating mysql.ndb_schema 120223 15:29:08 [Note] NDB Binlog: CREATE TABLE Event: REPL$mysql/ndb_schema 120223 15:29:09 [Note] NDB Binlog: logging ./mysql/ndb_schema (UPDATED,USE_WRITE) 120223 15:29:09 [Note] NDB: Creating mysql.ndb_apply_status 120223 15:29:09 [Note] NDB Binlog: CREATE TABLE Event: REPL$mysql/ndb_apply_status 120223 15:29:09 [Note] NDB Binlog: logging ./mysql/ndb_apply_status (UPDATED,USE_WRITE) 120223 15:29:09 [Note] NDB: missing frm for mysql.ndb_index_stat_sample, discovering... 120223 15:29:09 [Note] NDB: missing frm for mysql.ndb_index_stat_head, discovering... 2012-02-23 15:29:10 [NdbApi] INFO -- Flushing incomplete GCI:s < 579/14 2012-02-23 15:29:10 [NdbApi] INFO -- Flushing incomplete GCI:s < 579/14 120223 15:29:10 [Note] NDB Binlog: starting log at epoch 579/14 120223 15:29:10 [Note] NDB Binlog: ndb tables writable
5. 测试
连接 MySQL Server 进行测试,确认可以用ndb
存储引擎来创建数据库中的表,如下:
michael@linux:~$ $HOME/mysqlc/bin/mysql -h 127.0.0.1 -P 5050 mysql> create database clusterdb; mysql> use clusterdb; mysql> insert into simples values (1),(2),(3),(4); mysql> select * from simples; +----+ | id | +----+ | 3 | | 1 | | 2 | | 4 | +----+
6. 停止
MySQL Cluster 必须手动停止,Data Nodes 可以用 ndb_mgm 来停止:
michael@linux:~$ $HOME/mysqlc/bin/mysqladmin -h 127.0.0.1 -P 5050 shutdown
如果提示:
/home/michael/mysqlc/bin/mysqladmin: shutdown failed; error: 'Access denied; you need (at least one of) the SHUTDOWN privilege(s) for this operation'
则在shutdown
命令前加上sudo
。
michael@linux:~$ $HOME/mysqlc/bin/ndb_mgm -e shutdown
正常停止的信息类似如下:
120223 16:44:11 [Note] /home/michael/mysqlc/bin/mysqld: Normal shutdown michael@linux:~/mysql-cluster$ 120223 16:44:11 [Note] Event Scheduler: Purging the queue. 0 events 120223 16:44:13 [Warning] /home/michael/mysqlc/bin/mysqld: Forcing close of thread 2 user: 'michael' 120223 16:44:13 [Note] Stopping Cluster Utility thread 120223 16:44:13 [Note] Stopping Cluster Index Stats thread 120223 16:44:13 [Note] Stopping Cluster Binlog 120223 16:44:13 [Note] Stopping Cluster Index Statistics thread 120223 16:44:14 InnoDB: Starting shutdown... 120223 16:44:15 InnoDB: Shutdown completed; log sequence number 1595675 120223 16:44:15 [Note] /home/michael/mysqlc/bin/mysqld: Shutdown complete
7. 总结
- 有序启动:Management Node,Data Nodes,MySQL Server
- 配置项与各节点的对应
- 每个结点都单独启动
- Management Node 提供状态查看等多种功能