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Created Canal Kafka QuickStart (markdown)
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Canal-Kafka-QuickStart.md
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Canal-Kafka-QuickStart.md
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## 环境版本
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* 操作系统：CentOS release 6.6 (Final)
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* java版本: jdk1.8
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* zookeeper版本: zookeeper-3.4.11
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* kafka 版本: kafka_2.11-1.1.1.tgz
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* canal.kafka 版本: 请下载最新的安装包，本文以当前v1.0.26 alpha 5 的canal.kafka-1.0.26-SNAPSHOT.tar.gz 为例
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* MySQL版本 ：5.7.18
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* 注意 ： 关闭所有机器的防火墙，同时注意启动可以相互telnet ip 端口
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## 一、 安装jdk
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```
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此处省略
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```
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## 二、 安装zookeeper
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### 2.1 下载源码包，并解压
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官网下载地址：`http://www.apache.org/dyn/closer.cgi/zookeeper`
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```
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wget http://mirror.olnevhost.net/pub/apache/zookeeper/zookeeper-3.4.11/zookeeper-3.4.11.tar.gz
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tar zxvf zookeeper-3.4.11.tar.gz
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mv zookeeper-3.4.11 /usr/local/zookeeper
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```
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### 2.2 修改环境变量
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编辑 /etc/profile 文件, 在文件末尾添加以下环境变量配置:
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```
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# ZooKeeper Env
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export ZOOKEEPER_HOME=/usr/local/zookeeper
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export PATH=$PATH:$ZOOKEEPER_HOME/bin
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```
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运行以下命令使环境变量生效:
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` source /etc/profile `
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### 2.3 重命名配置文件
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初次使用 ZooKeeper 时,需要将$ZOOKEEPER_HOME/conf 目录下的 zoo_sample.cfg 重命名为 zoo.cfg, zoo.cfg
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```
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mv $ZOOKEEPER_HOME/conf/zoo_sample.cfg $ZOOKEEPER_HOME/conf/zoo.cfg
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```
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### 2.4 单机模式--修改配置文件
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创建目录`/usr/local/zookeeper/data` 和`/usr/local/zookeeper/logs`
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修改配置文件
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```
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tickTime=2000
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initLimit=10
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syncLimit=5
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dataDir=/usr/local/zookeeper/data
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dataLogDir=/usr/local/zookeeper/logs
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clientPort=2181
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```
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如果是多节点,配置文件中尾部增加
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```
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server.1=192.168.1.110:2888:3888
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server.2=192.168.1.111:2888:3888
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server.3=192.168.1.112:2888:3888
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```
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同时,增加
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```
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#master
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echo "1">/usr/local/zookeeper/data/myid
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#slave1
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echo "2">/usr/local/zookeeper/data/myid
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#slave2
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echo "3">/usr/local/zookeeper/data/myid
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```
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### 2.5 启动 ZooKeeper 服务
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```
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# cd /usr/local/zookeeper/zookeeper-3.4.11/bin
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# ./zkServer.sh start
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ZooKeeper JMX enabled by default
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Using config: /usr/local/zookeeper/zookeeper-3.4.11/bin/../conf/zoo.cfg
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Starting zookeeper ... STARTED
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zkServer.sh status
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ZooKeeper JMX enabled by default
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Using config: /usr/local/zookeeper/bin/../conf/zoo.cfg
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Mode: follower
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```
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### 2.6 验证zooKeeper服务
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服务启动完成后，可以使用 telnet 和 stat 命令验证服务器启动是否正常:
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```
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# telnet 127.0.0.1 2181
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Trying 127.0.0.1...
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Connected to 127.0.0.1.
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Escape character is '^]'.
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stat
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Zookeeper version: 3.4.11-37e277162d567b55a07d1755f0b31c32e93c01a0, built on 11/01/2017 18:06 GMT
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Clients:
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/127.0.0.1:48430[0](queued=0,recved=1,sent=0)
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Latency min/avg/max: 0/0/0
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Received: 1
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Sent: 0
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Connections: 1
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Outstanding: 0
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Zxid: 0x0
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Mode: standalone
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Node count: 4
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Connection closed by foreign host.
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```
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### 2.7 停止 ZooKeeper 服务
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想要停止 ZooKeeper 服务, 可以使用如下命令:
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```
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# cd /usr/local/zookeeper/zookeeper-3.4.11/bin
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# ./zkServer.sh stop
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ZooKeeper JMX enabled by default
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Using config: /usr/local/zookeeper/zookeeper-3.4.11/bin/../conf/zoo.cfg
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Stopping zookeeper ... STOPPED
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```
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## 三、zk ui安装 (选装，页面查看zk的数据)
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### 拉取代码
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```
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#git clone https://github.com/DeemOpen/zkui.git
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```
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### 源码编译需要安装 maven
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```
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# wget http://repos.fedorapeople.org/repos/dchen/apache-maven/epel-apache-maven.repo -O /etc/yum.repos.d/epel-apache-maven.repo
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#cd zkui/
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#yum install -y maven
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#mvn clean install
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```
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### 修改配置文件默认值
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```
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#vim config.cfg
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serverPort=9090 #指定端口
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zkServer=192.168.1.110:2181
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sessionTimeout=300000
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```
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### 启动程序至后台
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2.0-SNAPSHOT 会随软件的更新版本不同而不同，执行时请查看target 目录中真正生成的版本
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```
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nohup java -jar target/zkui-2.0-SNAPSHOT-jar-with-dependencies.jar &
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```
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### 用浏览器访问：
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`http://192.168.1.110:9090/`
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## 四、安装kafka
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### 4.1 下载压缩包, 复制到固定目录并解压
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到官网下载压缩包
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```
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wget https://www.apache.org/dyn/closer.cgi?path=/kafka/1.1.1/kafka_2.11-1.1.1.tgz
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mkdir -p /usr/local/kafka
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cp kafka_2.11-1.1.1.tgz /usr/local/kafka
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tar -zxvf kafka_2.11-1.1.1.tgz
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```
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### 4.2 修改配置文件
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`vim /usr/local/kafka/kafka_2.11-1.1.1/config/server.properties` 修改参数
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```
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zookeeper.connect=192.168.1.110:2181
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listeners=PLAINTEXT://:9092
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advertised.listeners=PLAINTEXT://192.168.1.117:9092 #本机ip
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# ...
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```
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### 4.3 启动server `bin/kafka-server-start.sh -daemon config/server.properties &`
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* 查看所有topic
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```
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# bin/kafka-topics.sh --list --zookeeper 192.168.1.110:2181
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```
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* 查看指定topic 下面的数据
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```
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# bin/kafka-console-consumer.sh ---bootstrap-server 192.168.1.117:9092 --from-beginning --topic example_t
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Using the ConsoleConsumer with old consumer is deprecated and will be removed in a future major release. Consider using the new consumer by passing [bootstrap-server] instead of [zookeeper].
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```
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### 4.7 参考链接
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```
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https://kafka.apache.org/quickstart
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```
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## 五、 安装canal.kafka
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### 5.1 下载压缩包
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到官网下载最新压缩包,请下载 canal.kafka-`latest`.tar.gz。[下面以v1.0.26 alpha 5 的canal.kafka-1.0.26-SNAPSHOT.tar.gz 为例]
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```
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https://github.com/alibaba/canal/releases
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```
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### 5.2 将canal.kafka 复制到固定目录并解压
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```
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mkdir -p /usr/local/canal
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cp canal.kafka-1.0.26-SNAPSHOT.tar.gz /usr/local/canal
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tar -zxvf canal.kafka-1.0.26-SNAPSHOT.tar.gz
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```
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### 5.3 配置修改参数
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修改instance 配置文件 `vi conf/example/instance.properties`
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```
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# 按需修改成自己的数据库信息
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#################################################
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...
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canal.instance.master.address=192.168.1.20:3306
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# username/password,数据库的用户名和密码
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...
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canal.instance.dbUsername = canal
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canal.instance.dbPassword = canal
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...
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#################################################
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```
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对应ip 地址的MySQL 数据库需进行相关初始化与设置
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详情参考 QuickStart : https://github.com/alibaba/canal/wiki/QuickStart
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修改canal 配置文件`vim /usr/local/canal/conf/canal.properties `
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```
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# ...
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canal_ip =192.168.1.99
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# zk server地址
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canal.zkServers=192.168.1.110:2181,192.168.1.111:2181,192.168.1.112:2181
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canal.destinations= example
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# ...
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canal.instance.global.spring.xml = classpath:spring/default-instance.xml
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```
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详细请参考 AdminGuide : https://github.com/alibaba/canal/wiki/AdminGuide
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修改canal.kafka 配置文件`vim /usr/local/canal/conf/kafka.yml`
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```
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#kafka 集群用,进行分隔: 192.168.1.117:9092,192.168.1.118:9092,192.168.1.119:9092
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servers: 192.168.1.117:9092
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retries: 0
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batchSize: 16384
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lingerMs: 1
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bufferMemory: 33554432
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# canal的批次大小，单位 k
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canalBatchSize: 50
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filterTransactionEntry: true
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canalDestinations:
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- canalDestination: example
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topic: example
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partition:
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# 一个destination可以对应多个topic
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# topics:
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# - topics: example
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# partition:
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```
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参数说明
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servers: 对应 kafka的 `ProducerConfig.BOOTSTRAP_SERVERS_CONFIG`
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retries: 对应kafka的`ProducerConfig.RETRIES_CONFIG`
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batchSize: 对应kafka的`ProducerConfig.BATCH_SIZE_CONFIG`
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lingerMs: 对应kafka的`ProducerConfig.LINGER_MS_CONFIG`
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bufferMemory: 对应kafka的`ProducerConfig.BUFFER_MEMORY_CONFIG`
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filterTransactionEntry: 过滤事务头、尾
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### 5.4 启动
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```
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cd /usr/local/canal/
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sh bin/startup.sh
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```
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### 5.5 查看日志
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a.查看 logs/canal/canal.log
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```
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vi logs/canal/canal.log
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```
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b. 查看instance的日志：
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```
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vi logs/example/example.log
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```
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### 5.6 关闭
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```
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cd /usr/local/canal/
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sh bin/stop.sh
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```
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### 5.7 使用canal.kafka.client 查看kafka topic中的代码样例
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```
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# // 待补充
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```
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### 5.8 参考链接
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```
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https://github.com/alibaba/canal/wiki/QuickStart
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https://github.com/alibaba/canal/wiki/AdminGuide
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```
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