Canal实现MYSQL实时数据同步
部署Canal-Admin
1. 拉取Canal-Admin镜像
为了兼容MYSQL8.0+， 我们需要拉取 v1.1.7的镜像
| 1 | docker pull canal/canal-admin:v1.1.7 |
2. 创建目录
| 1 | mkdir -p /data/canal-server/conf/ |
3. 创建canal_manager数据库
| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110 | CREATE DATABASE /*!32312 IF NOT EXISTS*/ `canal_manager` /*!40100 DEFAULT CHARACTER SET utf8 COLLATE utf8_bin */; USE `canal_manager`; SET NAMES utf8;SET FOREIGN_KEY_CHECKS = 0; -- ------------------------------ Table structure for canal_adapter_config-- ----------------------------DROP TABLE IF EXISTS `canal_adapter_config`;CREATE TABLE `canal_adapter_config` ( `id` bigint(20) NOT NULL AUTO_INCREMENT, `category` varchar(45) NOT NULL, `name` varchar(45) NOT NULL, `status` varchar(45) DEFAULT NULL, `content` text NOT NULL, `modified_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, PRIMARY KEY (`id`)) ENGINE=InnoDB DEFAULT CHARSET=utf8; -- ------------------------------ Table structure for canal_cluster-- ----------------------------DROP TABLE IF EXISTS `canal_cluster`;CREATE TABLE `canal_cluster` ( `id` bigint(20) NOT NULL AUTO_INCREMENT, `name` varchar(63) NOT NULL, `zk_hosts` varchar(255) NOT NULL, `modified_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, PRIMARY KEY (`id`)) ENGINE=InnoDB DEFAULT CHARSET=utf8; -- ------------------------------ Table structure for canal_config-- ----------------------------DROP TABLE IF EXISTS `canal_config`;CREATE TABLE `canal_config` ( `id` bigint(20) NOT NULL AUTO_INCREMENT, `cluster_id` bigint(20) DEFAULT NULL, `server_id` bigint(20) DEFAULT NULL, `name` varchar(45) NOT NULL, `status` varchar(45) DEFAULT NULL, `content` text NOT NULL, `content_md5` varchar(128) NOT NULL, `modified_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, PRIMARY KEY (`id`), UNIQUE KEY `sid_UNIQUE` (`server_id`)) ENGINE=InnoDB DEFAULT CHARSET=utf8; -- ------------------------------ Table structure for canal_instance_config-- ----------------------------DROP TABLE IF EXISTS `canal_instance_config`;CREATE TABLE `canal_instance_config` ( `id` bigint(20) NOT NULL AUTO_INCREMENT, `cluster_id` bigint(20) DEFAULT NULL, `server_id` bigint(20) DEFAULT NULL, `name` varchar(45) NOT NULL, `status` varchar(45) DEFAULT NULL, `content` text NOT NULL, `content_md5` varchar(128) DEFAULT NULL, `modified_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, PRIMARY KEY (`id`), UNIQUE KEY `name_UNIQUE` (`name`)) ENGINE=InnoDB DEFAULT CHARSET=utf8; -- ------------------------------ Table structure for canal_node_server-- ----------------------------DROP TABLE IF EXISTS `canal_node_server`;CREATE TABLE `canal_node_server` ( `id` bigint(20) NOT NULL AUTO_INCREMENT, `cluster_id` bigint(20) DEFAULT NULL, `name` varchar(63) NOT NULL, `ip` varchar(63) NOT NULL, `admin_port` int(11) DEFAULT NULL, `tcp_port` int(11) DEFAULT NULL, `metric_port` int(11) DEFAULT NULL, `status` varchar(45) DEFAULT NULL, `modified_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, PRIMARY KEY (`id`)) ENGINE=InnoDB DEFAULT CHARSET=utf8; -- ------------------------------ Table structure for canal_user-- ----------------------------DROP TABLE IF EXISTS `canal_user`;CREATE TABLE `canal_user` ( `id` bigint(20) NOT NULL AUTO_INCREMENT, `username` varchar(31) NOT NULL, `password` varchar(128) NOT NULL, `name` varchar(31) NOT NULL, `roles` varchar(31) NOT NULL, `introduction` varchar(255) DEFAULT NULL, `avatar` varchar(255) DEFAULT NULL, `creation_date` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, PRIMARY KEY (`id`)) ENGINE=InnoDB DEFAULT CHARSET=utf8; SET FOREIGN_KEY_CHECKS = 1; -- ------------------------------ Records of canal_user-- ----------------------------BEGIN;INSERT INTO `canal_user` VALUES (1, 'admin', '6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9', 'Canal Manager', 'admin', NULL, NULL, '2019-07-14 00:05:28');COMMIT; SET FOREIGN_KEY_CHECKS = 1; |
4. 启动Canal-Admin
如果是服务器部署的话，记得开放对应的端口号
8089:8089
| 1 | docker run -d --name canal-admin -p 8089:8089 canal/canal-admin:v1.1.7 |
5. 拷贝配置文件
| 1 | docker cp canal-admin:/home/admin/canal-admin/conf/application.yml /data/canal-admin/conf/ |
6. 删除Canal-Admin容器
| 1 | docker rm -f canal-admin |
7. 修改配置文件
（注意修改注释位置的信息）一共3处修改
| 123456789101112131415161718192021 | server: port: 8089spring: jackson: date-format: yyyy-MM-dd HH:mm:ss time-zone: GMT+8 spring.datasource: address: xxx.xxx.xxx.xxx:3306 #创建数据库canal_manager的地址及端口号 database: canal_manager username: root #数据库账号 password: xxxxxx #数据库密码 driver-class-name: com.mysql.jdbc.Driver url: jdbc:mysql://${spring.datasource.address}/${spring.datasource.database}?useUnicode=true&characterEncoding=UTF-8&useSSL=false hikari: maximum-pool-size: 30 minimum-idle: 1 canal: adminUser: admin adminPasswd: admin |
8. 部署Canal-Admin
| 1234 | docker run --name canal-admin -p 8089:8089 \-v /data/canal-admin/conf/application.yml:/home/admin/canal-admin/conf/application.yml \-v /data/canal-admin/logs/:/home/admin/canal-admin/logs/ \-d canal/canal-admin:v1.1.7 |
9. 访问Canal-Admin
访问 xxx.xxx.xxx.xxx:8089, 前面换成自己的服务器、虚拟机地址
部署Canal-Server
0. 前置工作
查看MYSQL是否
开启log_bin日志和日志记录格式是否为Row
一般都是开启的, 可以通过下列命令在Navicat或其他数据库工具进行查看
| 12 | show variables like 'log_bin';show variables like 'binlog_format'; |
授权账号权限， 复制下列命令执行即可
| 123 | CREATE USER canal IDENTIFIED BY 'canal'; GRANT SELECT, REPLICATION SLAVE, REPLICATION CLIENT ON *.* TO 'canal'@'%';FLUSH PRIVILEGES; |
1. 拉取Canal-Server镜像
| 1 | docker pull canal/canal-server:v1.1.7 |
2. 创建目录
| 1 | mkdir -p /data/canal-server/conf/ |
3. 启动Canal-Server
如果是服务器部署的话，记得开放对应的端口号
11111:11111
| 1 | docker run -d --name canal-server -p 11111:11111 canal/canal-server:v1.1.7 |
4. 拷贝配置文件
| 12 | docker cp canal-server:/home/admin/canal-server/conf/canal.properties /data/canal-server/conf/docker cp canal-server:/home/admin/canal-server/conf/example/instance.properties /data/canal-server/conf/ |
5. 删除Canal-Server
| 1 | docker rm -f canal-server |
6. 修改配置文件
canal.properties 一共1处修改
| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104 | # tcp bind ipcanal.ip =# register ip to zookeepercanal.register.ip =canal.port = 11111canal.metrics.pull.port = 11112 # canal admin configcanal.admin.manager = xxx.xxx.xxx.xxx:8089 # 改成自己的数据库地址canal.admin.port = 11110canal.admin.user = admincanal.admin.passwd = 4ACFE3202A5FF5CF467898FC58AAB1D615029441 canal.zkServers =# flush data to zkcanal.zookeeper.flush.period = 1000canal.withoutNetty = false# tcp, kafka, rocketMQ, rabbitMQ, pulsarMQcanal.serverMode = tcp# flush meta cursor/parse position to filecanal.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 1kbcanal.instance.memory.buffer.memunit = 1024 ## meory store gets mode used MEMSIZE or ITEMSIZEcanal.instance.memory.batch.mode = MEMSIZEcanal.instance.memory.rawEntry = true ## detecing configcanal.instance.detecting.enable = falsecanal.instance.detecting.sql = select 1canal.instance.detecting.interval.time = 3canal.instance.detecting.retry.threshold = 3canal.instance.detecting.heartbeatHaEnable = false canal.instance.transaction.size = 1024# mysql fallback connected to new master should fallback timescanal.instance.fallbackIntervalInSeconds = 60 # network configcanal.instance.network.receiveBufferSize = 16384canal.instance.network.sendBufferSize = 16384canal.instance.network.soTimeout = 30 # binlog filter configcanal.instance.filter.druid.ddl = truecanal.instance.filter.query.dcl = falsecanal.instance.filter.query.dml = falsecanal.instance.filter.query.ddl = falsecanal.instance.filter.table.error = falsecanal.instance.filter.rows = falsecanal.instance.filter.transaction.entry = falsecanal.instance.filter.dml.insert = falsecanal.instance.filter.dml.update = falsecanal.instance.filter.dml.delete = false # binlog format/image checkcanal.instance.binlog.format = ROW,STATEMENT,MIXED canal.instance.binlog.image = FULL,MINIMAL,NOBLOB # binlog ddl isolationcanal.instance.get.ddl.isolation = false # parallel parser configcanal.instance.parser.parallel = truecanal.instance.parser.parallelBufferSize = 256 # table meta tsdb infocanal.instance.tsdb.enable = truecanal.instance.tsdb.dir = ${canal.file.data.dir:../conf}/${canal.instance.destination:}canal.instance.tsdb.url = jdbc:h2:${canal.instance.tsdb.dir}/h2;CACHE_SIZE=1000;MODE=MYSQL;canal.instance.tsdb.dbUsername = canalcanal.instance.tsdb.dbPassword = canal# dump snapshot interval, default 24 hourcanal.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 dircanal.conf.dir = ../conf# auto scan instance dir add/remove and start/stop instancecanal.auto.scan = truecanal.auto.scan.interval = 5canal.auto.reset.latest.pos.mode = false canal.instance.tsdb.spring.xml = classpath:spring/tsdb/h2-tsdb.xml canal.instance.global.mode = springcanal.instance.global.lazy = falsecanal.instance.global.manager.address = ${canal.admin.manager}canal.instance.global.spring.xml = classpath:spring/file-instance.xml # canal admin configcanal.admin.manager = xxx.xxx.xxx.xxx:8089 # 改成自己的数据库地址# admin auto registercanal.admin.register.auto = truecanal.admin.register.cluster =canal.admin.register.name = |
instance.properties 一共2处修改
| 1234567891011121314151617181920212223242526272829303132333435363738 | ################################################### mysql serverId , v1.0.26+ will autoGen canal.instance.mysql.slaveId=10 # 这里的ID不要和Mysql的重复即可，可以直接填10 # enable gtid use true/falsecanal.instance.gtidon=false # position infocanal.instance.master.address=xxx.xxx.xxx.xxx:3306 # 改成需要监听的数据库地址canal.instance.master.journal.name=canal.instance.master.position=canal.instance.master.timestamp=canal.instance.master.gtid= # rds oss binlogcanal.instance.rds.accesskey=canal.instance.rds.secretkey=canal.instance.rds.instanceId= # table meta tsdb infocanal.instance.tsdb.enable=true # username/passwordcanal.instance.dbUsername=canalcanal.instance.dbPassword=canalcanal.instance.connectionCharset = UTF-8canal.instance.enableDruid=false # table regexcanal.instance.filter.regex=.*\\..*# table black regexcanal.instance.filter.black.regex=mysql\\.slave_.* # mq configcanal.mq.topic=examplecanal.mq.partition=0canal.instance.multi.stream.on=false################################################# |
7. 部署Canal-Server
| 12345 | docker run --name canal-server -p 11111:11111 \-v /data/canal-server/conf/instance.properties:/home/admin/canal-server/conf/example/instance.properties \-v /data/canal-server/conf/canal.properties:/home/admin/canal-server/conf/canal.properties \-v /data/canal-server/logs/:/home/docker/canal-server/logs/ \-d canal/canal-server:v1.1.7 |
部署Canal-Adapter
由于这个
Canal-Adapter作者并没有上传对应的镜像
但是他上传了对应的tar，所以我们可以制作对应的镜像
Canal-Adapter 的下载链接： Canal-Adapter
1. 创建对应的文件，文件如下
路径尽量跟我的一致
/opt/canal/，因为后面的文件都是在这个路径下
2. 对应的文件内容如下
Dockerfile
| 12345678910111213 | FROM openjdk:11COPY canal.adapter-*.tar.gz /tmp/ RUN \ mkdir -p /opt/canal-adapter && \ tar -zxf /tmp/canal.adapter-*.tar.gz -C /opt/canal-adapter && \ rm -r /tmp/canal.adapter-*.tar.gz COPY startup.sh /opt/canal-adapter/bin/startup.sh WORKDIR /opt/canal-adapter CMD ["sh", "-c", "sh /opt/canal-adapter/bin/startup.sh && tail -F logs/adapter/adapter.log"] |
startup.sh
| 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879 | #!/bin/bash current_path=`pwd`case "`uname`" in Linux) bin_abs_path=$(readlink -f $(dirname $0)) ;; *) bin_abs_path=`cd $(dirname $0); pwd` ;;esacbase=${bin_abs_path}/..export.UTF-8export BASE=$base if [ -f $base/bin/adapter.pid ] ; then echo "found adapter.pid , Please run stop.sh first ,then startup.sh" 2>&2 exit 1fi if [ ! -d $base/logs ] ; then mkdir -p $base/logsfi ## set java pathif [ -z "$JAVA" ] ; then JAVA=$(which java)fi ALIBABA_JAVA="/usr/alibaba/java/bin/java"TAOBAO_JAVA="/opt/taobao/java/bin/java"if [ -z "$JAVA" ]; then if [ -f $ALIBABA_JAVA ] ; then JAVA=$ALIBABA_JAVA elif [ -f $TAOBAO_JAVA ] ; then JAVA=$TAOBAO_JAVA else echo "Cannot find a Java JDK. Please set either set JAVA or put java (>=1.5) in your PATH." 2>&2 exit 1 fifi case "$#"in0 ) ;;2 ) if [ "$1" = "debug" ]; then DEBUG_PORT=$2 DEBUG_SUSPEND="n" JAVA_DEBUG_OPT="-Xdebug -Xnoagent -Djava.compiler=NONE -Xrunjdwp:transport=dt_socket,address=$DEBUG_PORT,server=y,suspend=$DEBUG_SUSPEND" fi ;;* ) echo "THE PARAMETERS MUST BE TWO OR LESS.PLEASE CHECK AGAIN." exit;;esac str=`file -L $JAVA | grep 64-bit`if [ -n "$str" ]; then JAVA_OPTS="-server -Xms2048m -Xmx3072m -Xmn1024m -XX:SurvivorRatio=2 -Xss256k -XX:+DisableExplicitGC -XX:+HeapDumpOnOutOfMemoryError"else JAVA_OPTS="-server -Xms1024m -Xmx1024m -XX:NewSize=256m -XX:MaxNewSize=256m -XX:MaxPermSize=128m "fi JAVA_OPTS=" $JAVA_OPTS -Djava.awt.headless=true -Djava.net.preferIPv4Stack=true -Dfile.encoding=UTF-8"ADAPTER_OPTS="-DappName=canal-adapter" for i in $base/lib/*; do CLASSPATH=$i:"$CLASSPATH";done CLASSPATH="$base/conf:$CLASSPATH"; echo "cd to $bin_abs_path for workaround relative path"cd $bin_abs_path echo CLASSPATH :$CLASSPATHexec $JAVA $JAVA_OPTS $JAVA_DEBUG_OPT $ADAPTER_OPTS -classpath .:$CLASSPATH com.alibaba.otter.canal.adapter.launcher.CanalAdapterApplication |
3. 构造 Canal-Adapter 镜像
| 12 | cd /opt/canaldocker build -t canal/canal-adapter:v1.1.7 . |
4. 创建目录
| 1 | mkdir -p /data/canal-adapter/conf/es7 |
5. 启动Canal-Adapter
| 1 | docker run -d --name canal-adapter -p 8081:8081 canal/canal-adapter:v1.1.7 |
6. 拷贝配置文件
| 123 | docker cp canal-adapter:/opt/canal-adapter/conf/application.yml /data/canal-adapter/conf/docker cp canal-adapter:/opt/canal-adapter/conf/bootstrap.yml /data/canal-adapter/conf/docker cp canal-adapter:/opt/canal-adapter/conf/es7/mytest_user.yml /data/canal-adapter/conf/es7 |
7. 删除Canal-Adapter
| 1 | docker rm -f canal-adapter |
8. 修改配置文件
application.yml 一共7处地方
| 123456789101112131415161718192021222324252627282930313233343536373839404142 | server: port: 8081spring: jackson: date-format: yyyy-MM-dd HH:mm:ss time-zone: GMT+8 default-property-inclusion: non_null canal.conf: mode: tcp #tcp kafka rocketMQ rabbitMQ flatMessage: true zookeeperHosts: syncBatchSize: 1000 retries: -1 timeout: accessKey: secretKey: consumerProperties: # canal tcp consumer canal.tcp.server.host: xxx.xxx.xxx.xxx:11111 #改成部署canal-server的地址 canal.tcp.zookeeper.hosts: canal.tcp.batch.size: 500 canal.tcp.username: canal.tcp.password: srcDataSources: defaultDS: url: jdbc:mysql://xxx.xxx.xxx:3341/infusion-xxxxx?useUnicode=true # 监听的数据库地址 username: root #数据库账号 password: xxxxxxx #数据库密码 canalAdapters: - instance: example #如果没改过的话 默认这个即可 groups: - groupId: g1 outerAdapters: - name: logger - name: es7 hosts: http://xxx.xxx.xxx:9200 #部署Es的服务器地址 properties: mode: rest # or rest # security.auth: test:123456 # only used for rest mode cluster.name: es #部署Es的容器名字 |
bootstrap.yml
| 123456 | canal: manager: jdbc: url: jdbc:mysql://xxxxxx:3306/canal_manager?useUnicode=true&characterEncoding=UTF-8 username: root password: xxxxxxx |
coupon_record.yml 一共3处地方
| 12345678 | dataSourceKey: defaultDS destination: example #如果之前canal-server没改就使用默认examplegroupId: g1 esMapping: _index: coupon_record #对应索引库名称 _id: _id sql: "select id as _id,coupon_id,create_time,use_state,openid,user_type,user_name,coupon_title,start_time,end_time,order_id,price,condition_price,del_flag from sys_coupon_record" commitBatch: 3000 |
9. 部署Canal-Adapter
| 123456 | docker run --name canal-adapter -p 8081:8081 \-v /data/canal-adapter/conf/application.yml:/opt/canal-adapter/conf/application.yml \-v /data/canal-adapter/conf/bootstrap.yml:/opt/canal-adapter/conf/bootstrap.yml \-v /data/canal-adapter/conf/es7:/opt/canal-adapter/conf/es7 \-v /data/canal-adapter/logs:/opt/canal-adapter/logs \-d canal/canal-adapter:v1.1.7 |
部署Canal三件套到此结束啦，内容可能有点多，需要认真理解！
