1.修改mysql开启主从同步
1.1 在mysql配置文件中配置主从同步信息，在[mysqld]下添加如下内容
[mysqld]
server-id=1
binlog-format=ROW
read-only=0
1.2 给canal创建用户，并授予权限，以便伪装成从库用
create user 'canal'@'%' identified with mysql_native_password by 'Root@dcw1234QQQ';
GRANT ALL PRIVILEGES ON *.* TO 'canal'配置完了这步后，重启mysql服务可以测试一下用这个账户是可以在Navicat登录成功的
2.下载并配置canal
2.1 下载canal，从1.1.5开始支持rabbitmq
[下载canal-1.1.5](https://github.com/alibaba/canal/releases/download/canal-1.1.5/canal.deployer-1.1.5.tar.gz)mkdir -p /home/dcw/canal
tar -zxvf canal.deployer-1.1.5.tar.gz -C /home/dcw/canal2.2 修改/home/dcw/canal/conf/canal.properties
#################################################
######### common argument #############
#################################################
# tcp bind ip
canal.ip =
# register ip to zookeeper
canal.register.ip =
canal.port = 11111
canal.metrics.pull.port = 11112
# canal instance user/passwd
# canal.user = canal
# canal.passwd = E3619321C1A937C46A0D8BD1DAC39F93B27D4458
# canal admin config
#canal.admin.manager = 127.0.0.1:8089
canal.admin.port = 11110
canal.admin.user = admin
canal.admin.passwd = 4ACFE3202A5FF5CF467898FC58AAB1D615029441
# admin auto register
#canal.admin.register.auto = true
#canal.admin.register.cluster =
#canal.admin.register.name =
canal.zkServers =
# flush data to zk
canal.zookeeper.flush.period = 1000
canal.withoutNetty = false
# tcp, kafka, rocketMQ, rabbitMQ
# 将默认的tcp修改为rabbitMQ，可以删除其他多余的mq的信息
canal.serverMode = rabbitMQ
# flush meta cursor/parse position to file
canal.file.data.dir = ${canal.conf.dir}
canal.file.flush.period = 1000
## memory store RingBuffer size, should be Math.pow(2,n)
canal.instance.memory.buffer.size = 16384
## memory store RingBuffer used memory unit size , default 1kb
canal.instance.memory.buffer.memunit = 1024
## meory store gets mode used MEMSIZE or ITEMSIZE
canal.instance.memory.batch.mode = MEMSIZE
canal.instance.memory.rawEntry = true
## detecing config
canal.instance.detecting.enable = false
#canal.instance.detecting.sql = insert into retl.xdual values(1,now()) on duplicate key update x=now()
canal.instance.detecting.sql = select 1
canal.instance.detecting.interval.time = 3
canal.instance.detecting.retry.threshold = 3
canal.instance.detecting.heartbeatHaEnable = false
# support maximum transaction size, more than the size of the transaction will be cut into multiple transactions delivery
canal.instance.transaction.size = 1024
# mysql fallback connected to new master should fallback times
canal.instance.fallbackIntervalInSeconds = 60
# network config
canal.instance.network.receiveBufferSize = 16384
canal.instance.network.sendBufferSize = 16384
canal.instance.network.soTimeout = 30
# binlog filter config
canal.instance.filter.druid.ddl = true
canal.instance.filter.query.dcl = false
canal.instance.filter.query.dml = false
canal.instance.filter.query.ddl = false
canal.instance.filter.table.error = false
canal.instance.filter.rows = false
canal.instance.filter.transaction.entry = false
canal.instance.filter.dml.insert = false
canal.instance.filter.dml.update = false
canal.instance.filter.dml.delete = false
# binlog format/image check
canal.instance.binlog.format = ROW,STATEMENT,MIXED
canal.instance.binlog.image = FULL,MINIMAL,NOBLOB
# binlog ddl isolation
canal.instance.get.ddl.isolation = false
# parallel parser config
canal.instance.parser.parallel = true
## concurrent thread number, default 60% available processors, suggest not to exceed Runtime.getRuntime().availableProcessors()
#canal.instance.parser.parallelThreadSize = 16
## disruptor ringbuffer size, must be power of 2
canal.instance.parser.parallelBufferSize = 256
# table meta tsdb info
canal.instance.tsdb.enable = true
canal.instance.tsdb.dir = ${canal.file.data.dir:../conf}/${canal.instance.destination:}
# 配置canal的数据库信息
canal.instance.tsdb.url=jdbc:mysql://192.168.17.101:3306/canal_tsdb
canal.instance.tsdb.dbUsername = root
canal.instance.tsdb.dbPassword = 1234
# dump snapshot interval, default 24 hour
canal.instance.tsdb.snapshot.interval = 24
# purge snapshot expire , default 360 hour(15 days)
canal.instance.tsdb.snapshot.expire = 360
#################################################
######### destinations #############
#################################################
canal.destinations = example
# conf root dir
canal.conf.dir = ../conf
# auto scan instance dir add/remove and start/stop instance
canal.auto.scan = true
canal.auto.scan.interval = 5
# set this value to 'true' means that when binlog pos not found, skip to latest.
# WARN: pls keep 'false' in production env, or if you know what you want.
canal.auto.reset.latest.pos.mode = false
#这行是注释掉，并使用mysql作为数据库
#canal.instance.tsdb.spring.xml = classpath:spring/tsdb/h2-tsdb.xml
canal.instance.tsdb.spring.xml = classpath:spring/tsdb/mysql-tsdb.xml
canal.instance.global.mode = spring
canal.instance.global.lazy = false
canal.instance.global.manager.address = ${canal.admin.manager}
#canal.instance.global.spring.xml = classpath:spring/memory-instance.xml
canal.instance.global.spring.xml = classpath:spring/file-instance.xml
#canal.instance.global.spring.xml = classpath:spring/default-instance.xml
##################################################
######### MQ Properties #############
##################################################
# aliyun ak/sk , support rds/mq
# canal.aliyun.accessKey =
# canal.aliyun.secretKey =
# canal.aliyun.uid=
# canal.mq.flatMessage = true
# canal.mq.canalBatchSize = 50
# canal.mq.canalGetTimeout = 100
# # Set this value to "cloud", if you want open message trace feature in aliyun.
# canal.mq.accessChannel = local
# canal.mq.database.hash = true
# canal.mq.send.thread.size = 30
# canal.mq.build.thread.size = 8
# ##################################################
# ######### Kafka #############
# ##################################################
# kafka.bootstrap.servers = 127.0.0.1:9092
# kafka.acks = all
# kafka.compression.type = none
# kafka.batch.size = 16384
# kafka.linger.ms = 1
# kafka.max.request.size = 1048576
# kafka.buffer.memory = 33554432
# kafka.max.in.flight.requests.per.connection = 1
# kafka.retries = 0
# kafka.kerberos.enable = false
# kafka.kerberos.krb5.file = "../conf/kerberos/krb5.conf"
# kafka.kerberos.jaas.file = "../conf/kerberos/jaas.conf"
# ##################################################
# ######### RocketMQ #############
# ##################################################
# rocketmq.producer.group = test
# rocketmq.enable.message.trace = false
# rocketmq.customized.trace.topic =
# rocketmq.namespace =
# rocketmq.namesrv.addr = 127.0.0.1:9876
# rocketmq.retry.times.when.send.failed = 0
# rocketmq.vip.channel.enabled = false
# rocketmq.tag =
##################################################
######### RabbitMQ #############
##################################################
# 配置rabbitmq相关的账号信息 交换机，路由键账号等
rabbitmq.host = 192.168.45.102
rabbitmq.virtual.host = /
rabbitmq.exchange = CanalExchange
rabbitmq.routingKey = CanalRoutingKey
rabbitmq.queue = CanalQueue
rabbitmq.username = dcw
rabbitmq.password = dcw@123
rabbitmq.deliveryMode = 2.3 修改/home/dcw/canal/conf/example/instance.properties
#################################################
## mysql serverId , v1.0.26+ will autoGen
# canal.instance.mysql.slaveId=0
# enable gtid use true/false
canal.instance.gtidon=false
# position info
# 主库的ip和端口
canal.instance.master.address=192.168.17.101:3306
# 在主库上执行show master status \G 得到从哪个binlog日志文件的哪个位置开始同步
canal.instance.master.journal.name=binlog.000014
canal.instance.master.position=452
canal.instance.master.timestamp=
canal.instance.master.gtid=
# rds oss binlog
canal.instance.rds.accesskey=
canal.instance.rds.secretkey=
canal.instance.rds.instanceId=
# table meta tsdb info
canal.instance.tsdb.enable=true
#canal.instance.tsdb.url=jdbc:mysql://127.0.0.1:3306/canal_tsdb
#canal.instance.tsdb.dbUsername=canal
#canal.instance.tsdb.dbPassword=canal
#canal.instance.standby.address =
#canal.instance.standby.journal.name =
#canal.instance.standby.position =
#canal.instance.standby.timestamp =
#canal.instance.standby.gtid=
# username/password
# canal伪装成从库使用的账号信息，就是上面1.2那步配置的
canal.instance.dbUsername=canal
canal.instance.dbPassword=Root@dcw1234QQQ
canal.instance.connectionCharset = UTF-8
# enable druid Decrypt database password
canal.instance.enableDruid=false
#canal.instance.pwdPublicKey=MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBALK4BUxdDltRRE5/zXpVEVPUgunvscYFtEip3pmLlhrWpacX7y7GCMo2/JM6LeHmiiNdH1FWgGCpUfircSwlWKUCAwEAAQ==
# table regex
canal.instance.filter.regex=.*\\..*
# table black regex
canal.instance.filter.black.regex=mysql\\.slave_.*
# table field filter(format: schema1.tableName1:field1/field2,schema2.tableName2:field1/field2)
#canal.instance.filter.field=test1.t_product:id/subject/keywords,test2.t_company:id/name/contact/ch
# table field black filter(format: schema1.tableName1:field1/field2,schema2.tableName2:field1/field2)
#canal.instance.filter.black.field=test1.t_product:subject/product_image,test2.t_company:id/name/contact/ch
# mq config
# rabbitmq的路由键配置
canal.mq.topic=CanalRoutingKey
# dynamic topic route by schema or table regex
#canal.mq.dynamicTopic=mytest1.user,mytest2\\..*,.*\\..*
canal.mq.partition=0
# hash partition config
#canal.mq.partitionsNum=3
#canal.mq.partitionHash=test.table:id^name,.*\\..*
#canal.mq.dynamicTopicPartitionNum=test.*:4,mycanal:6
#################################################
3.启动canal
/home/dcw/canal/bin/startup.sh
3.查看日志
cat /home/dcw/canal/logs/example/example.log2024-01-17 14:22:44.900 [main] INFO c.a.otter.canal.instance.spring.CanalInstanceWithSpring - start CannalInstance for 1-example
2024-01-17 14:22:44.909 [main] WARN c.a.o.canal.parse.inbound.mysql.dbsync.LogEventConvert - --> init table filter : ^.*\..*$
2024-01-17 14:22:44.909 [main] WARN c.a.o.canal.parse.inbound.mysql.dbsync.LogEventConvert - --> init table black filter : ^mysql\.slave_.*$
2024-01-17 14:22:44.980 [destination = example , address = /192.168.17.101:3306 , EventParser] WARN c.a.o.c.p.inbound.mysql.rds.RdsBinlogEventParserProxy - ---> begin to find start position, it will be long time for reset or first position
2024-01-17 14:22:44.992 [main] INFO c.a.otter.canal.instance.core.AbstractCanalInstance - start successful....
2024-01-17 14:22:45.005 [destination = example , address = /192.168.17.101:3306 , EventParser] WARN c.a.o.c.p.inbound.mysql.rds.RdsBinlogEventParserProxy - prepare to find start position just last position
{"identity":{"slaveId":-1,"sourceAddress":{"address":"node1","port":3306}},"postion":{"gtid":"","included":false,"journalName":"binlog.000014","position":122200,"serverId":1,"timestamp":1705472539000}}
2024-01-17 14:22:45.322 [destination = example , address = /192.168.17.101:3306 , EventParser] WARN c.a.o.c.p.inbound.mysql.rds.RdsBinlogEventParserProxy - ---> find start position successfully, EntryPosition[included=false,journalName=binlog.000014,position=122200,serverId=1,gtid=,timestamp=1705472539000] cost : 334ms , the next step is binlog dump4.在hyperf项目中接收来自rabbitmq的消息
4.1 CanalProducer.php
<?php
declare(strict_types=1);
namespace App\Amqp\Producers;
use Hyperf\Amqp\Annotation\Producer;
use Hyperf\Amqp\Message\ProducerMessage;
#[Producer(exchange: "CanalExchange", routingKey: "CanalRoutingKey")]
class CanalProducer extends ProducerMessage {
public function __construct($data) {
$this->payload = $data;
}
}
4.2 CanalConsumer.php
<?php
declare(strict_types=1);
namespace App\Amqp\Consumers;
use Hyperf\Amqp\Annotation\Consumer;
use Hyperf\Amqp\Message\ConsumerMessage;
use Hyperf\Amqp\Result;
use PhpAmqpLib\Message\AMQPMessage;
#[Consumer(exchange: "CanalExchange", routingKey: "CanalRoutingKey", queue: "CanalQueue", nums: 1)]
class CanalConsumer extends ConsumerMessage {
public function consumeMessage($data, AMQPMessage $message): string {
echo '消费canal数据' . getStandardTime() . eol();
print_r($data);
// TODO 自定义业务
return Result::ACK;
}
}
4.3 消费记录
消费canal数据2024-01-17 15:02:04Array
(
[data] => Array
(
[0] => Array
(
[id] => 24
[gmt_create] => 2024-01-17 15:02:00
[gmt_modified] => 2024-01-17 15:02:00
[destination] => example
[binlog_file] => binlog.000014
[binlog_offest] => 135604
[binlog_master_id] => 1
[binlog_timestamp] => 1705474920000
[use_schema] => canal_tsdb
[sql_schema] => canal_tsdb
[sql_table] => meta_snapshot
[sql_text] => CREATE TABLE IF NOT EXISTS `meta_snapshot` (
`id` bigint(20) unsigned NOT NULL AUTO_INCREMENT COMMENT '主键',
`gmt_create` datetime NOT NULL COMMENT '创建时间',
`gmt_modified` datetime NOT NULL COMMENT '修改时间',
`destination` varchar(128) DEFAULT NULL COMMENT '通道名称',
`binlog_file` varchar(64) DEFAULT NULL COMMENT 'binlog文件名',
`binlog_offest` bigint(20) DEFAULT NULL COMMENT 'binlog偏移量',
`binlog_master_id` varchar(64) DEFAULT NULL COMMENT 'binlog节点id',
`binlog_timestamp` bigint(20) DEFAULT NULL COMMENT 'binlog应用的时间戳',
`data` longtext DEFAULT NULL COMMENT '表结构数据',
`extra` text DEFAULT NULL COMMENT '额外的扩展信息',
PRIMARY KEY (`id`),
UNIQUE KEY binlog_file_offest(`destination`,`binlog_master_id`,`binlog_file`,`binlog_offest`),
KEY `destination` (`destination`),
KEY `destination_timestamp` (`destination`,`binlog_timestamp`),
KEY `gmt_modified` (`gmt_modified`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8 COMMENT='表结构记录表快照表'
[sql_type] => CREATE
[extra] =>
)
)
[database] => canal_tsdb
[es] => 1705474920000
[id] => 1
[isDdl] =>
[mysqlType] => Array
(
[id] => bigint(20) unsigned
[gmt_create] => datetime
[gmt_modified] => datetime
[destination] => varchar(128)
[binlog_file] => varchar(64)
[binlog_offest] => bigint(20)
[binlog_master_id] => varchar(64)
[binlog_timestamp] => bigint(20)
[use_schema] => varchar(1024)
[sql_schema] => varchar(1024)
[sql_table] => varchar(1024)
[sql_text] => longtext
[sql_type] => varchar(256)
[extra] => text
)
[old] =>
[pkNames] => Array
(
[0] => id
)
[sql] =>
[sqlType] => Array
(
[id] => -5
[gmt_create] => 93
[gmt_modified] => 93
[destination] => 12
[binlog_file] => 12
[binlog_offest] => -5
[binlog_master_id] => 12
[binlog_timestamp] => -5
[use_schema] => 12
[sql_schema] => 12
[sql_table] => 12
[sql_text] => 2005
[sql_type] => 12
[extra] => -4
)
[table] => meta_history
[ts] => 1705474921128
[type] => INSERT
)
5.其他问题
WARN com.taobao.tddl.dbsync.binlog.LogDecoder - Skipping unrecognized binlog event Unknown from: mysql-bin.000048:1104320mysql 8会报上面的警告，但是没有影响使用，一直刷CPU会有点遭不住，可以适当调整日志级别
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