dolphinscheduler集群部署教程

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前言

本文将介绍如何安装和配置 DolphinScheduler，一个分布式任务调度系统。首先，我们将讨论架构规划，包括主机IP、主机名和安装的服务。然后，我们将配置集群之间的免密登录，创建用户并设置密码。接下来，我们将安装所需的软件和库，如JDK、MySQL和ZooKeeper。最后，我们将下载和部署 DolphinScheduler，并演示如何登录和使用该系统。

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一、架构规划

主机ip	主机名	安装服务
192.168.198.101	hadoop101	master、worker、apiServers、mysql、zookeeper
192.168.198.102	hadoop102	master、worker、zookeeper
192.168.198.103	hadoop103	worker、alertServer、zookeeper

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二、配置集群免密登录

1. 配置root用户集群免密登录

分别在hadoop101、hadoop102和hadoop103节点执行下面命令，用于配置集群之间互相免密登录。
执行ssh-copy-id命令过程中需要根据提示输入yes和root用户密码。

1.1 hadoop101节点操作

ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa

ssh-copy-id hadoop101

ssh-copy-id hadoop102

ssh-copy-id hadoop103

1.2 hadoop102节点操作

ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa

ssh-copy-id hadoop101

ssh-copy-id hadoop102

ssh-copy-id hadoop103

1.3 hadoop103节点操作

ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa

ssh-copy-id hadoop101

ssh-copy-id hadoop102

ssh-copy-id hadoop103

2. 创建用户

分别在hadoop101、hadoop102和hadoop103节点创建dolphinscheduler用户并设置密码。

分别在hadoop101、hadoop102和hadoop103节点切换到dolphinscheduler用户，然后配置集群之间互相免密登录。

dolphinscheduler用户的密码：dolphinscheduler

2.1 hadoop101节点操作

useradd dolphinscheduler
echo "dolphinscheduler" | passwd --stdin dolphinscheduler
sed -i '$adolphinscheduler  ALL=(ALL)  NOPASSWD: NOPASSWD: ALL' /etc/sudoers
sed -i 's/Defaults    requirett/#Defaults    requirett/g' /etc/sudoers
su dolphinscheduler

ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa

ssh-copy-id hadoop101

ssh-copy-id hadoop102

ssh-copy-id hadoop103

退出dolphinscheduler用户。

exit

2.2 hadoop102节点操作

useradd dolphinscheduler
echo "dolphinscheduler" | passwd --stdin dolphinscheduler
sed -i '$adolphinscheduler  ALL=(ALL)  NOPASSWD: NOPASSWD: ALL' /etc/sudoers
sed -i 's/Defaults    requirett/#Defaults    requirett/g' /etc/sudoers
su dolphinscheduler

ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa

ssh-copy-id hadoop101

ssh-copy-id hadoop102

ssh-copy-id hadoop103

退出dolphinscheduler用户。

exit

2.3 hadoop103节点操作

useradd dolphinscheduler
echo "dolphinscheduler" | passwd --stdin dolphinscheduler
sed -i '$adolphinscheduler  ALL=(ALL)  NOPASSWD: NOPASSWD: ALL' /etc/sudoers
sed -i 's/Defaults    requirett/#Defaults    requirett/g' /etc/sudoers
su dolphinscheduler

ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa

ssh-copy-id hadoop101

ssh-copy-id hadoop102

ssh-copy-id hadoop103

退出dolphinscheduler用户。

exit

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三、安装准备

1. 安装条件

• jdk版本：1.8+
• MySQL版本：5.7+
• MySQL驱动版本：8.0.16+
• zookeeper版本：3.4.6+

2. 安装jdk

下载地址：https://www.oracle.com/java/technologies/downloads/#java8

下载后上传到hadoop101、hadoop102和hadoop103节点的/tmp目录下。

然后分别在hadoop101、hadoop102和hadoop103节点执行下面命令，用于创建目录、解压，并设置系统级环境变量。

mkdir -p /opt/module
tar -zxvf /tmp/jdk-8u401-linux-x64.tar.gz -C /opt/module/
echo >> /etc/profile
echo '#JAVA_HOME' >> /etc/profile
echo "export JAVA_HOME=/opt/module/jdk1.8.0_401" >> /etc/profile
echo 'export PATH=$PATH:$JAVA_HOME/bin' >> /etc/profile
source /etc/profile

3. 安装MySQL

在hadoop101安装MySQL。

• mysql5.7.44自动化安装教程
• mysql5.7.37自动化安装教程

4. zookeeper集群搭建

4.1 部署zookeeper集群

4.1.1 hadoop101节点操作

wget --no-check-certificate https://archive.apache.org/dist/zookeeper/zookeeper-3.8.1/apache-zookeeper-3.8.1-bin.tar.gz -P /tmp
tar -zxvf /tmp/apache-zookeeper-3.8.1-bin.tar.gz -C /opt/soft/zookeeper
cd /opt/soft/zookeeper/apache-zookeeper-3.8.1-bin
cp ./conf/zoo_sample.cfg ./conf/zoo.cfg
sed -i "s|^dataDir=.*|dataDir=./tmp/zookeeper|" ./conf/zoo.cfg
sed -i "s|^clientPort=.*|clientPort=12181|" ./conf/zoo.cfg
echo >> ./conf/zoo.cfg
echo "server.1=10.80.69.72:12888:13888" >> ./conf/zoo.cfg
echo "server.2=10.80.69.73:12888:13888" >> ./conf/zoo.cfg
echo "server.3=10.80.69.74:12888:13888" >> ./conf/zoo.cfg
echo >> ./conf/zoo.cfg
echo 'admin.serverPort=18080' >> ./conf/zoo.cfg
./bin/zkServer.sh start
echo 1 > ./tmp/zookeeper/myid
./bin/zkServer.sh restart

4.1.2 hadoop102节点操作

wget --no-check-certificate https://archive.apache.org/dist/zookeeper/zookeeper-3.8.1/apache-zookeeper-3.8.1-bin.tar.gz -P /tmp
tar -zxvf /tmp/apache-zookeeper-3.8.1-bin.tar.gz -C /opt/soft/zookeeper
cd /opt/soft/zookeeper/apache-zookeeper-3.8.1-bin
cp ./conf/zoo_sample.cfg ./conf/zoo.cfg
sed -i "s|^dataDir=.*|dataDir=./tmp/zookeeper|" ./conf/zoo.cfg
sed -i "s|^clientPort=.*|clientPort=12181|" ./conf/zoo.cfg
echo >> ./conf/zoo.cfg
echo "server.1=10.80.69.72:12888:13888" >> ./conf/zoo.cfg
echo "server.2=10.80.69.73:12888:13888" >> ./conf/zoo.cfg
echo "server.3=10.80.69.74:12888:13888" >> ./conf/zoo.cfg
echo >> ./conf/zoo.cfg
echo 'admin.serverPort=18080' >> ./conf/zoo.cfg
./bin/zkServer.sh start
echo 2 > ./tmp/zookeeper/myid
./bin/zkServer.sh restart

4.1.3 hadoop103节点操作

wget --no-check-certificate https://archive.apache.org/dist/zookeeper/zookeeper-3.8.1/apache-zookeeper-3.8.1-bin.tar.gz -P /tmp
tar -zxvf /tmp/apache-zookeeper-3.8.1-bin.tar.gz -C /opt/soft/zookeeper
cd /opt/soft/zookeeper/apache-zookeeper-3.8.1-bin
cp ./conf/zoo_sample.cfg ./conf/zoo.cfg
sed -i "s|^dataDir=.*|dataDir=./tmp/zookeeper|" ./conf/zoo.cfg
sed -i "s|^clientPort=.*|clientPort=12181|" ./conf/zoo.cfg
echo >> ./conf/zoo.cfg
echo "server.1=10.80.69.72:12888:13888" >> ./conf/zoo.cfg
echo "server.2=10.80.69.73:12888:13888" >> ./conf/zoo.cfg
echo "server.3=10.80.69.74:12888:13888" >> ./conf/zoo.cfg
echo >> ./conf/zoo.cfg
echo 'admin.serverPort=18080' >> ./conf/zoo.cfg
./bin/zkServer.sh start
echo 3 > ./tmp/zookeeper/myid
./bin/zkServer.sh restart

4.2 启动zookeeper集群

4.2.1 hadoop101节点操作

cd /opt/soft/zookeeper/apache-zookeeper-3.8.1-bin
./bin/zkServer.sh restart

4.2.2 hadoop102节点操作

cd /opt/soft/zookeeper/apache-zookeeper-3.8.1-bin
./bin/zkServer.sh start

4.2.3 hadoop103节点操作

cd /opt/soft/zookeeper/apache-zookeeper-3.8.1-bin
./bin/zkServer.sh start

4.3 zookeeper命令

4.3.1 启动zookeeper

cd /opt/soft/zookeeper/apache-zookeeper-3.8.1-bin
./bin/zkServer.sh start

4.3.2 停止zookeeper

cd /opt/soft/zookeeper/apache-zookeeper-3.8.1-bin
./bin/zkServer.sh stop

4.3.3 重启zookeeper

cd /opt/soft/zookeeper/apache-zookeeper-3.8.1-bin
./bin/zkServer.sh restart

4.3.4 查看zookeeper状态

cd /opt/soft/zookeeper/apache-zookeeper-3.8.1-bin
./bin/zkServer.sh status

4.3.5 进入zookeeper客户端

cd /opt/soft/zookeeper/apache-zookeeper-3.8.1-bin
./bin/zkCli.sh -server hadoop101:2181

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四、安装dolphinscheduler

在hadoop101节点下载并解压dolphinscheduler。

以下操作都在hadoop101节点进行。

1. 下载并解压dolphinscheduler

wget --no-check-certificate https://archive.apache.org/dist/dolphinscheduler/3.1.4/apache-dolphinscheduler-3.1.4-bin.tar.gz -P /tmp
mkdir -p /opt/soft/dolphinscheduler
tar -zxvf /tmp/apache-dolphinscheduler-3.1.4-bin.tar.gz -C /opt/soft/dolphinscheduler

2. 修改安装配置文件

2.1 修改 install_env.sh 文件

根据架构规划修改 /opt/module/dolphinscheduler/apache-dolphinscheduler-3.1.4-bin/bin/env/install_env.sh 文件。内容如下所示。

# 需要安装DolphinScheduler相关组件的主机
ips=${ips:-"hadoop101,hadoop102,hadoop103"}

# SSH协议端口号，默认为22。
sshPort=${sshPort:-"22"}

# 需要安装master节点的主机
masters=${masters:-"hadoop101,hadoop102"}

# 需要安装worker节点的主机
workers=${workers:-"hadoop101:default,hadoop102:default,hadoop103:default"}

# 需要安装警报服务的主机
alertServer=${alertServer:-"hadoop103"}

# 需要安装api服务的主机
apiServers=${apiServers:-"hadoop101"}

# 安装dolphinscheduler的目录。如果不存在，将由install.sh脚本创建。
installPath=${installPath:-"/opt/module/dolphinscheduler/dolphinscheduler"}

# 部署dolphinscheduler的用户
deployUser=${deployUser:-"root"}

# zookeeper的根目录，目前DolphinScheduler默认的注册服务器是zookeeper。
zkRoot=${zkRoot:-"/dolphinscheduler"}

2.2 修改 dolphinscheduler_env.sh 文件

修改 /opt/module/dolphinscheduler/apache-dolphinscheduler-3.1.4-bin/bin/env/dolphinscheduler_env.sh 文件。内容如下所示。

# 修改为自己的jdk安装目录
export JAVA_HOME=${JAVA_HOME:-/opt/module/jdk1.8.0_391}

# 修改MySQL配置
export DATABASE=${DATABASE:-mysql}
export SPRING_PROFILES_ACTIVE=${DATABASE}
export SPRING_DATASOURCE_URL="jdbc:mysql://hadoop101:3306/dolphinscheduler?useUnicode=true&characterEncoding=UTF-8&useSSL=false"
export SPRING_DATASOURCE_USERNAME="dolphinscheduler"
export SPRING_DATASOURCE_PASSWORD="dolphinscheduler"

# DolphinScheduler服务相关配置
export SPRING_CACHE_TYPE=${SPRING_CACHE_TYPE:-none}
export SPRING_JACKSON_TIME_ZONE=${SPRING_JACKSON_TIME_ZONE:-UTC}
export MASTER_FETCH_COMMAND_NUM=${MASTER_FETCH_COMMAND_NUM:-10}

# 注册中心配置，修改为自己的zookeeper监听地址
export REGISTRY_TYPE=${REGISTRY_TYPE:-zookeeper}
export REGISTRY_ZOOKEEPER_CONNECT_STRING=${REGISTRY_ZOOKEEPER_CONNECT_STRING:-hadoop101:2181,hadoop102:2181,hadoop103:2181}

# 这些环境变量根据自己的需要更改，没有保持默认即口
export HADOOP_HOME=${HADOOP_HOME:-/opt/soft/hadoop}
export HADOOP_CONF_DIR=${HADOOP_CONF_DIR:-/opt/soft/hadoop/etc/hadoop}
export SPARK_HOME1=${SPARK_HOME1:-/opt/soft/spark1}
export SPARK_HOME2=${SPARK_HOME2:-/opt/soft/spark2}
export PYTHON_HOME=${PYTHON_HOME:-/opt/soft/python}
export HIVE_HOME=${HIVE_HOME:-/opt/soft/hive}
export FLINK_HOME=${FLINK_HOME:-/opt/soft/flink}
export DATAX_HOME=${DATAX_HOME:-/opt/soft/datax}
export SEATUNNEL_HOME=${SEATUNNEL_HOME:-/opt/soft/seatunnel}
export CHUNJUN_HOME=${CHUNJUN_HOME:-/opt/soft/chunjun}

export PATH=$HADOOP_HOME/bin:$SPARK_HOME1/bin:$SPARK_HOME2/bin:$PYTHON_HOME/bin:$JAVA_HOME/bin:$HIVE_HOME/bin:$FLINK_HOME/bin:$DATAX_HOME/bin:$SEATUNNEL_HOME/bin:$CHUNJUN_HOME/bin:$PATH

3. 配置mysql数据源

3.1 修改MySQL安全策略

修改安全策略为LOW，使其可以设置简单密码，根据自己的需要更改。

mysql -h hadoop101 -P 3306 -uroot -proot -e "set global validate_password_length=4;"
mysql -h hadoop101 -P 3306 -uroot -proot -e "set global validate_password_policy=LOW;"

3.2 查看数据库

查看dolphinscheduler数据库是否存在。

mysql -h hadoop101 -P 3306 -uroot -proot -e "SHOW DATABASES;" | grep dolphinscheduler

若存在则删除。

mysql -h hadoop101 -P 3306 -uroot -proot -e "DROP DATABASE dolphinscheduler;"

3.3 创建数据库

创建dolphinscheduler数据库

mysql -h hadoop101 -P 3306 -uroot -proot -e "CREATE DATABASE dolphinscheduler DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;"

3.4 创建MySQL用户

创建 dolphinscheduler 用户并授予操作 dolphinscheduler 数据库的权限。

此处创建dolphinscheduler用户并设置密码为dolphinscheduler。

mysql -h hadoop101 -P 3306 -uroot -proot -e "CREATE USER 'dolphinscheduler'@'%' IDENTIFIED BY 'dolphinscheduler';"

授予操作 dolphinscheduler 数据库的权限并刷新权限。

mysql -h hadoop101 -P 3306 -uroot -proot -e "GRANT ALL PRIVILEGES ON dolphinscheduler.* TO 'dolphinscheduler'@'%' IDENTIFIED BY 'dolphinscheduler';"
mysql -h hadoop101 -P 3306 -uroot -proot -e "flush privileges;"

3.5 配置MySQL驱动

下载并配置MySQL驱动。

wget https://repo1.maven.org/maven2/mysql/mysql-connector-java/8.0.16/mysql-connector-java-8.0.16.jar -P /tmp
cd /opt/soft/dolphinscheduler/apache-dolphinscheduler-3.1.4-bin
cp /tmp/mysql-connector-java-8.0.16.jar ./worker-server/libs
cp /tmp/mysql-connector-java-8.0.16.jar ./api-server/libs
cp /tmp/mysql-connector-java-8.0.16.jar ./alert-server/libs
cp /tmp/mysql-connector-java-8.0.16.jar ./master-server/libs
cp /tmp/mysql-connector-java-8.0.16.jar ./tools/libs
cp /tmp/mysql-connector-java-8.0.16.jar ./standalone-server/libs/standalone-server

cd /opt/soft/dolphinscheduler
wget https://repo1.maven.org/maven2/commons-cli/commons-cli/1.5.0/commons-cli-1.5.0.jar -P /tmp
cp /tmp/commons-cli-1.5.0.jar apache-dolphinscheduler-3.1.4-bin/worker-server/libs
cp /tmp/commons-cli-1.5.0.jar apache-dolphinscheduler-3.1.4-bin/api-server/libs
cp /tmp/commons-cli-1.5.0.jar apache-dolphinscheduler-3.1.4-bin/alert-server/libs
cp /tmp/commons-cli-1.5.0.jar apache-dolphinscheduler-3.1.4-bin/master-server/libs
cp /tmp/commons-cli-1.5.0.jar apache-dolphinscheduler-3.1.4-bin/tools/libs

4. 初始化数据库

初始化dolphinscheduler数据库。

cd /opt/soft/dolphinscheduler/apache-dolphinscheduler-3.1.4-bin
bash tools/bin/upgrade-schema.sh

初始化成功如下图所示。

5. 修改目录权限

修改apache-dolphinscheduler-3.1.4-bin目录权限到dolphinscheduler用户。

cd /opt/soft/dolphinscheduler
chown -R dolphinscheduler:dolphinscheduler apache-dolphinscheduler-3.1.4-bin

6. 安装部署dolphinscheduler

cd /opt/soft/dolphinscheduler/apache-dolphinscheduler-3.1.4-bin
bash ./bin/install.sh

7. 登录 DolphinScheduler

浏览器访问地址 http://localhost:12345/dolphinscheduler/ui 即可登录系统UI。默认的用户名和密码是 admin/dolphinscheduler123

如下图所示。

8. dolphinscheduler命令

8.1 一键停止集群所有服务

cd /opt/soft/dolphinscheduler/apache-dolphinscheduler-3.1.4-bin
bash ./bin/stop-all.sh

8.2 一键开启集群所有服务

cd /opt/soft/dolphinscheduler/apache-dolphinscheduler-3.1.4-bin
bash ./bin/start-all.sh

8.3 启停 Master

cd /opt/soft/dolphinscheduler/apache-dolphinscheduler-3.1.4-bin
bash ./bin/dolphinscheduler-daemon.sh stop master-server
bash ./bin/dolphinscheduler-daemon.sh start master-server

8.4 启停 Worker

cd /opt/soft/dolphinscheduler/apache-dolphinscheduler-3.1.4-bin
bash ./bin/dolphinscheduler-daemon.sh start worker-server
bash ./bin/dolphinscheduler-daemon.sh stop worker-server

8.5 启停 Api

cd /opt/soft/dolphinscheduler/apache-dolphinscheduler-3.1.4-bin
bash ./bin/dolphinscheduler-daemon.sh start api-server
bash ./bin/dolphinscheduler-daemon.sh stop api-server

8.6 启停 Alert

cd /opt/soft/dolphinscheduler/apache-dolphinscheduler-3.1.4-bin
bash ./bin/dolphinscheduler-daemon.sh start alert-server
bash ./bin/dolphinscheduler-daemon.sh stop alert-server

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总结

本文详细介绍了安装和配置 DolphinScheduler 的步骤。我们首先进行了架构规划，确定了主机IP、主机名和安装的服务。然后，我们配置了集群之间的免密登录，并创建了用户并设置了密码。接下来，我们安装了所需的软件和库，如JDK、MySQL和ZooKeeper。最后，我们下载并部署了 DolphinScheduler，并演示了登录和使用该系统的过程。

希望本教程对您有所帮助！如有任何疑问或问题，请随时在评论区留言。感谢阅读！