二、安装 canal server

1. 下载canal

直接下载

访问：https://github.com/alibaba/canal/releases

下载：https://github.com/alibaba/canal/releases/download/canal-1.0.24/canal.deployer-1.0.24.tar.gz

2. 解压缩

mkdir canal tar zxvf canal.deployer-$version.tar.gz

解压完成后，进入canal目录，可以看到如下结构：

drwxr-xr-x 2 jianghang jianghang  136 2013-02-05 21:51 bin drwxr-xr-x 4 jianghang jianghang  160 2013-02-05 21:51 conf drwxr-xr-x 2 jianghang jianghang 1.3K 2013-02-05 21:51 lib drwxr-xr-x 2 jianghang jianghang   48 2013-02-05 21:29 logs

3. 配置修改

应用参数：

vi conf/example/instance.properties

################################################# ## mysql serverId canal.instance.mysql.slaveId = 1234

position info，需要改成自己的数据库信息

canal.instance.master.address = 127.0.0.1:3306 canal.instance.master.journal.name = canal.instance.master.position = canal.instance.master.timestamp =

#canal.instance.standby.address = #canal.instance.standby.journal.name = #canal.instance.standby.position = #canal.instance.standby.timestamp =

username/password，需要改成自己的数据库信息

canal.instance.dbUsername = canal canal.instance.dbPassword = canal canal.instance.defaultDatabaseName = canal_test canal.instance.connectionCharset = UTF-8

table regex

canal.instance.filter.regex = .\..

#################################################

说明：

canal.instance.connectionCharset 代表数据库的编码方式对应到java中的编码类型，比如UTF-8，GBK , ISO-8859-1

4. 准备启动

sh bin/startup.sh

5. 查看日志

vi logs/canal/canal.log

2013-02-05 22:45:27.967 [main] INFO  com.alibaba.otter.canal.deployer.CanalLauncher - ## start the canal server. 2013-02-05 22:45:28.113 [main] INFO  com.alibaba.otter.canal.deployer.CanalController - ## start the canal server[10.1.29.120:11111] 2013-02-05 22:45:28.210 [main] INFO  com.alibaba.otter.canal.deployer.CanalLauncher - ## the canal server is running now ......

具体instance的日志：

vi logs/example/example.log

2013-02-05 22:50:45.636 [main] INFO  c.a.o.c.i.spring.support.PropertyPlaceholderConfigurer - Loading properties file from class path resource [canal.properties] 2013-02-05 22:50:45.641 [main] INFO  c.a.o.c.i.spring.support.PropertyPlaceholderConfigurer - Loading properties file from class path resource [example/instance.properties] 2013-02-05 22:50:45.803 [main] INFO  c.a.otter.canal.instance.spring.CanalInstanceWithSpring - start CannalInstance for 1-example  2013-02-05 22:50:45.810 [main] INFO  c.a.otter.canal.instance.spring.CanalInstanceWithSpring - start successful....

6. 关闭

sh bin/stop.sh

三、配置mysql

a. canal的原理是基于mysql binlog技术，所以这里一定需要开启mysql的binlog写入功能，建议配置binlog模式为row.

修改my.cnf配置文件，如果找不到，参考：https://blog.csdn.net/bahaidong/article/details/80475684

[mysqld] log-bin=mysql-bin #添加这一行就ok binlog-format=ROW #选择row模式 server_id=1 #配置mysql replaction需要定义，不能和canal的slaveId重复

b. canal的原理是模拟自己为mysql slave，所以这里一定需要做为mysql slave的相关权限.

用root账户登录mysql添加

CREATE USER canal IDENTIFIED BY 'canal';   GRANT SELECT, REPLICATION SLAVE, REPLICATION CLIENT ON *.* TO 'canal'@'%'; -- GRANT ALL PRIVILEGES ON *.* TO 'canal'@'%' ; FLUSH PRIVILEGES;

针对已有的账户可直接通过grant

四、测试数据库脚本

create database canal_test;

use canal_test;

CREATE TABLE `student` (

`id` int(11) NOT NULL AUTO_INCREMENT,

`name` varchar(100) DEFAULT NULL,

`weight` varchar(100) DEFAULT NULL,

PRIMARY KEY (`id`)

) ENGINE=InnoDB AUTO_INCREMENT=6 DEFAULT CHARSET=utf8;

五、下载示例代码

https://github.com/alibaba/canal/releases/download/canal-1.0.24/canal.example-1.0.24.tar.gz