canal1.1.5 配置kaka
1. 简介：
canal [kə'næl]，译意为水道/管道/沟渠，主要用途是基于 MySQL 数据库增量日志解析，提供增量数据订阅和消费 早期阿里巴巴因为杭州和美国双机房部署，存在跨机房同步的业务需求，实现方式主要是基于业务 trigger 获取增量变更。从 2010 年开始，业务逐步尝试数据库 志解析获取增量变更进行同步，由此衍生出了大量的数据库增量订阅和消费业务。 基于日志增量订阅和消费的业务包括1.数据库镜像2.数据库实时备份3.索引构建和实时维护(拆分异构索引、倒排索引等)4.业务 cache 刷新5.带业务逻辑的增量数据处理
1.1 官网地址
https://github.com/alibaba/canal
2.架构
canal.png
3.canal 工作原理
canal 工作原理.png
4 canal 部署所需要的组件
搭建一套可以用的组件需要部署MySQL、Zookeeper、Kafka和Canal四个中间件的实例
5. mysql 安装省略
5.1 为canal -admin 创建用户
CREATE USER canaladmin IDENTIFIED BY 'canaladmin%123'; GRANT ALL ON canal_manager.* TO 'canaladmin'@'%'; FLUSH PRIVILEGES;
5.1 为canal 创建用户：
CREATE USER canal IDENTIFIED BY 'canal%123'; GRANT ALL PRIVILEGES ON *.* TO 'canal'@'%' ; FLUSH PRIVILEGES;
5.3 mysql 的配置：
打开mysql 的配置文件：
vi /etc/my.cnf
server-id=1 log-bin=mysql-bin binlog-format=ROW binlog-ignore-db=information_schema binlog-ignore-db=mysql binlog-ignore-db=performance_schema binlog-ignore-db=sys log-bin用于指定binlog日志文件名前缀，默认存储在/var/lib/mysql 目录下。 server-id用于标识唯一的数据库，不能和别的服务器重复，建议使用ip的最后一段，默认值也不可以。 binlog-ignore-db：表示同步的时候忽略的数据库。 binlog-do-db：指定需要同步的数据库（如果没有此项，表示同步所有的库）。
6. canal 安装
下载地址：
https://github.com/alibaba/canal/releases
canal安装.png
6.1 下载解压安装
drwxr-xr-x 6 root root 72 2月 14 00:45 canaladmin -rw-r--r-- 1 root root 38060846 2月 14 00:45 canal.admin-1.1.5-SNAPSHOT.tar.gz drwxr-xr-x 7 root root 90 2月 14 00:45 canaldeployer -rw-r--r-- 1 root root 58810588 2月 14 00:45 canal.deployer-1.1.5-SNAPSHOT.tar.gz [root@slave01 canal]# pwd /opt/module/canal [root@slave01 canal]#
6.2 配置环境变量
export CANAL_ADMIN_HOME=/opt/module/canal/canaladmin
export PATH=${CANAL_ADMIN_HOME}/bin:$PATH
export CANAL_SERVER_HOME=/opt/module/canal/canaldeployer
export PATH=${CANAL_SERVER_HOME}/bin:$PATH6.3 配置canal -admin
进入到canaladmin 目录的conf 目录中
vi /opt/module/canal/canaladmin/conf/application.yml
修改内容如下：
server:
port: 8089
spring:
jackson:
date-format: yyyy-MM-dd HH:mm:ss
time-zone: GMT+8
spring.datasource:
address: 192.168.1.153:3306
database: canal_manager
username: canaladmin
password: canaladmin%123
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导入canal-admin的sql 脚本
1.进入mysql 中执行 use mysql soruce /opt/module/canal/canaladmin/conf/canal_manager.sql
启动canal-admin
/opt/module/canal/canaladmin/bin [root@slave01 canaladmin]# cd bin/ [root@slave01 bin]# ll 总用量 20 -rw-r--r-- 1 root root 6 2月 14 00:58 admin.pid -rwxr-xr-x 1 root root 39 2月 14 00:45 restart.sh -rwxr-xr-x 1 root root 747 2月 14 00:45 startup.bat -rwxr-xr-x 1 root root 2047 2月 14 00:45 startup.sh -rwxr-xr-x 1 root root 1362 2月 14 00:45 stop.sh [root@slave01 bin]# pwd /opt/module/canal/canaladmin/bin [root@slave01 bin]# ./startup.sh
访问地址：
http://192.168.1.153:8089/ 默认登录 admin/123456
canaladmin 登录.png
7. 配置canaldeployer
[root@slave01 conf]# pwd /opt/module/canal/canaldeployer/conf [root@slave01 conf]# ll 总用量 16 -rwxr-xr-x 1 root root 309 2月 14 00:45 canal_local.properties -rwxr-xr-x 1 root root 5868 2月 14 00:45 canal.properties drwxrwxrwx 2 root root 117 2月 14 01:25 example -rwxr-xr-x 1 root root 3437 2月 14 00:45 logback.xml drwxrwxrwx 2 root root 47 2月 14 00:45 metrics drwxrwxrwx 3 root root 177 2月 14 00:45 spring [root@slave01 conf]#
打开canal.properties 文件：
#################################################
######### common argument #############
#################################################
# tcp bind ip
canal.ip =
# register ip to zookeeper
canal.register.ip =192.168.1.151:2181,192.168.1.152:2181,192.168.1.153:2181
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
canal.zkServers =
# flush data to zk
canal.zookeeper.flush.period = 1000
canal.withoutNetty = false
# tcp, kafka, rocketMQ, rabbitMQ
canal.serverMode = kafka
# 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
# 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:}
canal.instance.tsdb.url = jdbc:h2:${canal.instance.tsdb.dir}/h2;CACHE_SIZE=1000;MODE=MYSQL;
canal.instance.tsdb.dbUsername = canal
canal.instance.tsdb.dbPassword = canal%123
# 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
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 = 192.168.1.151:6667
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
##################################################
######### RabbitMQ #############
##################################################
rabbitmq.host =
rabbitmq.virtual.host =
rabbitmq.exchange =
rabbitmq.username =
rabbitmq.password =配置实例文件
[root@slave01 example]# pwd /opt/module/canal/canaldeployer/conf/example [root@slave01 example]# ll 总用量 148 -rw-r--r-- 1 root root 143360 2月 14 00:45 h2.mv.db -rwxr-xr-x 1 root root 2291 2月 14 01:25 instance.properties -rw-r--r-- 1 root root 338 2月 14 01:26 meta.dat [root@slave01 example]#
编辑内容：
################################################# ## mysql serverId , v1.0.26+ will autoGen # canal.instance.mysql.slaveId=0 canal.instance.mysql.slaveId=12368 # enable gtid use true/false canal.instance.gtidon=false # position info canal.instance.master.address=192.168.1.153:3306 canal.instance.master.journal.name= canal.instance.master.position= 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=false #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.instance.dbUsername=canal canal.instance.dbPassword=canal%123 canal.instance.defaultDatabaseName = location canal.instance.connectionCharset = UTF-8 # enable druid Decrypt database password canal.instance.enableDruid=false #canal.instance.pwdPublicKey=MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBALK4BUxdDltRRE5/zXpVEVPUgunvscYFtEip3pmLlhrWpacX7y7GCMo2/JM6LeHmiiNdH1FWgGCpUfircSwlWKUCAwEAAQ== canal.instance.defaultDatabaseName = location # table regex canal.instance.filter.regex=location\\..* # table black regex #canal.instance.filter.black.regex=mysql\\.slave_.* canal.instance.filter.black.regex= # 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 canal.mq.topic=canallocal # 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 #################################################
7.1 启动
[root@slave01 bin]# pwd /opt/module/canal/canaldeployer/bin [root@slave01 bin]# ll 总用量 20 -rw-r--r-- 1 root root 6 2月 14 01:25 canal.pid -rwxr-xr-x 1 root root 58 2月 14 00:45 restart.sh -rwxr-xr-x 1 root root 1181 2月 14 00:45 startup.bat -rwxr-xr-x 1 root root 3167 2月 14 00:45 startup.sh -rwxr-xr-x 1 root root 1356 2月 14 00:45 stop.sh [root@slave01 bin]# [root@slave01 bin]# ./startup.sh
查看日志
8. 监控topic
msyqalff.png
kafkajson.png
作者：wudl
链接：https://www.jianshu.com/p/3df39e34f4bf
来源：简书
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