azkaban集群部署

随着平台上的任务越来越多,且部分任务相互依赖,目前使用的crontab定时调度已经无法满足使用需求.急需一个任务依赖调度系统,笔者以前使用过oozie,但是oozie配置过多,而且维护繁琐,属于重量级系统.所以最终我选择使用azkaban.网上关于oozie和azkaban比较的文章很多,有兴趣可以自行百度.接下来说说azkaban的部署.

一.部署模式

• solo-server模式  (使用内置h2存储元数据)
• two-server模式   (1个webServer,1个execServer在同一服务器上,使用mysql存储元数据)
• multiple-executor模式   (1个webServer,多个execServer分布在不同服务上,使用mysql存储元数据)
  本文选择第三种模式,即一台机器安装webServer服务,多台机器安装execServer.这种模式是使用最广泛的.

二.部署准备

1. 三台服务器
   

   192.168.0.10 --azkaban-web-server
   192.168.0.11 --azkaban-exec-server
   192.168.0.12 --azkaban-exec-server

2. 默认有一个mysql服务器,首先创建azkaban库,azkaban用户密码,并赋予远程连接.
   

   mysql> CREATE DATABASE azkaban;
   mysql> CREATE USER 'azkaban'@'%' IDENTIFIED BY 'azkaban';
   mysql> CREATE USER 'azkaban'@'localhost' IDENTIFIED BY 'azkaban';
   mysql> grant all privileges on azkaban.* to 'azkaban'@'%' identified by 'azkaban';
   mysql> grant all privileges on azkaban.* to 'azkaban'@'localhost' identified by 'azkaban';
   mysql> flush privileges;

3. 下载最新azkaban源文件(azkaban-3.47.0.tar.gz),上传到192.168.0.10:/opt/下
   
   

三.开始部署

1. 解压缩文件azkaban-3.47.0.tar.gz 
   
2. 进入目录执行下面代码编译源文件
   

   ./gradlew distTar

3. 将下面3个文件解压缩,文件如下:
   

   /opt/azkaban-3.47.0/azkaban-web-server/build/distributions/azkaban-web-server-0.1.0-SNAPSHOT.tar.gz
   /opt/azkaban-3.47.0/azkaban-solo-server/build/distributions/azkaban-solo-server-0.1.0-SNAPSHOT.tar.gz
   /opt/azkaban-3.47.0/azkaban-db/build/distributions/azkaban-db-0.1.0-SNAPSHOT.tar.gz

4. 导入建表语句
   

   mysql -uazkaban -p
   > SOURCE /opt/azkaban-3.47.0/azkaban-db/build/distributions/azkaban-db-0.1.0-SNAPSHOT/create-all-sql-0.1.0-SNAPSHOT.sql;

5. 构建Azkaban-web-server
   

   mv /opt/azkaban-3.47.0/azkaban-web-server/build/distributions/azkaban-web-server-0.1.0-SNAPSHOT /opt/Azkaban-web-server
   cp -r /opt/azkaban-3.47.0/azkaban-solo-server/build/distributions/azkaban-solo-server-0.1.0-SNAPSHOT/conf /opt/Azkaban-web-server/conf

6. 修改 /opt/Azkaban-web-server/conf/azkaban.properties 文件
   

   # Azkaban Personalization Settings
   azkaban.name=nyhadoop
   azkaban.label=My Local Azkaban
   azkaban.color=#FF3601
   azkaban.default.servlet.path=/index
   web.resource.dir=web/
   default.timezone.id=Asia/Shanghai
   # Azkaban UserManager class
   user.manager.class=azkaban.user.XmlUserManager
   user.manager.xml.file=conf/azkaban-users.xml
   # Loader for projects
   executor.global.properties=conf/global.properties
   azkaban.project.dir=projects
   
   database.type=mysql
   mysql.port=3306
   mysql.host=10.46.67.33
   mysql.database=azkaban
   mysql.user=azkaban
   mysql.password=azkaban
   mysql.numconnections=100
   
   # Velocity dev mode
   velocity.dev.mode=false
   # Azkaban Jetty server properties.
   jetty.ssl.port=8443
   # jetty.use.ssl=false
   jetty.port=8081
   jetty.keystore=keystore
   jetty.password=123456
   jetty.keypassword=123456
   jetty.truststore=keystore
   jetty.trustpassword=123456
   jetty.maxThreads=25
   # Azkaban Executor settings
   executor.port=12321
   # mail settings
   mail.sender=
   mail.host=
   # User facing web server configurations used to construct the user facing server URLs. They are useful when there is a reverse proxy between Azkaban web servers and users.
   # enduser -> myazkabanhost:443 -> proxy -> localhost:8081
   # when this parameters set then these parameters are used to generate email links. 
   # if these parameters are not set then jetty.hostname, and jetty.port(if ssl configured jetty.ssl.port) are used.
   # azkaban.webserver.external_hostname=myazkabanhost.com
   # azkaban.webserver.external_ssl_port=443
   # azkaban.webserver.external_port=8081
   job.failure.email=
   job.success.email=
   lockdown.create.projects=false
   cache.directory=cache
   # JMX stats
   jetty.connector.stats=true
   executor.connector.stats=true
   # Azkaban plugin settings
   azkaban.jobtype.plugin.dir=plugins/jobtypes
   azkaban.use.multiple.executors=true
   azkaban.executorselector.filters=StaticRemainingFlowSize,MinimumFreeMemory,CpuStatus
   azkaban.executorselector.comparator.NumberOfAssignedFlowComparator=1
   azkaban.executorselector.comparator.Memory=1
   azkaban.executorselector.comparator.LastDispatched=1
   azkaban.executorselector.comparator.CpuUsage=1

7. 配置jetty ssl
   

   keytool -keystore keystore -alias jetty -genkey -keyalg RSA
   Enter keystore password:  输入密码
   Re-enter new password: 再次输入密码
   What is your first and last name?
     [Unknown]:  直接回车
   What is the name of your organizational unit?
     [Unknown]:  直接回车
   What is the name of your organization?
     [Unknown]:  直接回车
   What is the name of your City or Locality?
     [Unknown]:  直接回车
   What is the name of your State or Province?
     [Unknown]:  直接回车
   What is the two-letter country code for this unit?
     [Unknown]:  直接回车
   Is CN=YY, OU=YY, O=YY, L=shanghai, ST=shanghai, C=CN correct?
     [no]:  y

8. 将生成的keystore文件 移动到/opt/Azkaban-web-server/目录下
   
   
9. 构建Azkaban-exec-server(192.168.0.11和192.168.0.12都有)
   

   scp /opt/azkaban-3.47.0/azkaban-exec-server/build/distributions/azkaban-exec-server-0.1.0-SNAPSHOT.tar.gz 192.168.0.11:/opt/
   tar -zxvf azkaban-exec-server-0.1.0-SNAPSHOT.tar.gz
   mv azkaban-exec-server-0.1.0-SNAPSHOT Azkaban-exec-server

10. /opt/Azkaban-exec-server目录下创建目录和文件conf/azkaban.properties文件
    

    # Azkaban Personalization Settings
    default.timezone.id=Asia/Shanghai
    # Loader for projects
    executor.global.properties=conf/global.properties
    azkaban.project.dir=projects
    
    database.type=mysql
    mysql.port=3306
    mysql.host=10.46.67.33
    mysql.database=azkaban
    mysql.user=azkaban
    mysql.password=azkaban
    mysql.numconnections=100
    
    # Azkaban Executor settings
    executor.maxThreads=50
    executor.port=12321
    executor.flow.threads=30
    # JMX stats
    jetty.connector.stats=true
    executor.connector.stats=true
    # Azkaban plugin settings
    azkaban.jobtype.plugin.dir=plugins/jobtypes

11. 分别在/opt/Azkaban-web-server/conf和/opt/Azkaban-exec-server/conf目录下创建log4j.properties文件
    

    log4j.rootLogger=DEBUG,C
    log4j.appender.C=org.apache.log4j.ConsoleAppender
    log4j.appender.C.Target=System.err
    log4j.appender.C.layout=org.apache.log4j.PatternLayout
    log4j.appender.C.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n

12. 分别在/opt/Azkaban-web-server/和/opt/Azkaban-exec-server/目录下创建plugins/jobtypes/commonprivate.properties目录和文件
    

    azkaban.native.lib=false
    execute.as.user=false

四.运行

1. 192.168.0.11和192.168.0.12下  /opt/Azkaban-exec-server目录下执行
   

   bin/start-exec.sh
   curl http://${ip}:12321/executor?action=activate

2. 192.168.1.10下 /opt/Azkaban-web-server目录下执行
   

   bin/start-web.sh

3. 浏览器地址 https://192.168.1.10:8443查看服务界面