作者：田超凡
日期：2025年6月7日
Canal安装，启动端口11111、8082：
安装canal-deployer服务端：
https://github.com/alibaba/canal/releases/1.1.7/canal.deployer-1.1.7.tar.gz
cd /opt/homebrew/etc
mkdir canal-deployer
tar -zxvf canal.deployer-1.1.7.tar.gz
修改配置文件：
vi conf/canal.properties
canal.ip = 127.0.0.1
vi example/instance.properties
# 需要同步数据的MySQL地址
canal.instance.master.address=127.0.0.1:3306
canal.instance.master.journal.name=
canal.instance.master.position=
canal.instance.master.timestamp=
canal.instance.master.gtid=
# 用于同步数据的数据库账号
canal.instance.dbUsername=账号
# 用于同步数据的数据库密码
canal.instance.dbPassword=密码
# 数据库连接编码
canal.instance.connectionCharset = UTF-8
# 需要订阅binlog的表过滤正则表达式
canal.instance.filter.regex=.*\\..*
启动canal-deployer
到 bin 目录下，执行命令：./startup.sh
日志：logs/canal
踩坑：
1 canal-deployer启动报错
canal/logs/canal/canal_stdout.log 报错：
Unrecognized VM option 'AggressiveOpts'Error: Could not create the Java Virtual Machine.Error: A fatal exception has occurred. Program will exit.
Plain Text
解决方案：
修改canal/bin/startup.sh：
移除AggressiveOpts、UseBiasedLocking 等 JDK 21中已经不在支持的配置，重新启动.
2 安装canal-adapter客户端：
https://github.com/alibaba/canal/releases/1.1.7/canal.adapter-1.1.7.tar.gz
cd /opt/homebrew/etc
mkdir canal-adapter
tar -zxvf canal.adapter-1.1.7.tar.gz
修改配置文件：
vi conf/application.properties
port:8082
踩坑：hosts要配置成：http://127.0.0.1:9200，不然会报错
java.lang.RuntimeException: java.lang.IllegalArgumentException: Illegal character in scheme name at index 0: 127.0.0.1:9200
继续修改es8配置文件：
vi conf/es8/mytest_user.yml
dataSourceKey: defaultDS
destination: example
groupId: g1
esMapping:
_index: users
_id: _id
# upsert: true
# pk: id
sql: "select t.id as _id, t.nick_name as nick_name, t.state as state,t.telephone as telephone from users as t"
# objFields:
# _labels: array:;
#etlCondition: "where a.c_time>={}"
commitBatch: 3000
修改bin/start.sh
移除AggressiveOpts、UseBiasedLocking 等 JDK 21中已经不在支持的配置，重新启动.
启动canal-adapter客户端：
cd canal-adapter/bin
./startup.sh
日志目录：logs/adapter/adapter.log
踩坑：必须先启动mysql8和es8，否则无法启动canal-deployer和canal-adapter
canal-deployer服务端(Canal Server)运行端口：11111
canal-adapter客户端(Canal Client)运行端口：8082
测试同步mysql到es8：
登录Kibana，DevTool:
PUT users
{
"mappings": {
"properties": {
"nickname": {
"type": "text"
},
"telephone": {
"type": "text"
},
"state": {
"type": "text"
}
}
}
}
user表插入一条数据:
INSERT INTO `users` (`id`,`gmt_create`,`gmt_modified`,`nick_name`,`password_hash`,`state`,`telephone`,`user_role`) VALUES (14,'2024-04-18 17:47:40','2024-04-18 17:47:42','test11111','c2975f0faec10adca0ecd729c8cbc0aa','INIT','13000000000','CUSTOMER')
GET users/_search
{"_source": ["nick_name","telephone","state"],
"query": {
"match": {
"nick_name": "test11111"
}
}
}
DELETE users
