分布式调度框架。
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# 后端部署文档
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## 基础软件安装
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* [Mysql](https://blog.csdn.net/u011886447/article/details/79796802) (5.5+) : 必装
* [JDK](https://www.oracle.com/technetwork/java/javase/downloads/index.html) (1.8+) : 必装
* [ZooKeeper](https://www.jianshu.com/p/de90172ea680)(3.4.6) :必装
* [Hadoop](https://blog.csdn.net/Evankaka/article/details/51612437)(2.7.3) :选装, 如果需要使用到资源上传功能,MapReduce任务提交则需要配置Hadoop(上传的资源文件目前保存在Hdfs上)
* [Hive](https://staroon.pro/2017/12/09/HiveInstall/)(1.2.1) : 选装,hive任务提交需要安装
* Spark(1.x,2.x) : 选装,Spark任务提交需要安装
* PostgreSQL(8.2.15+) : 选装,PostgreSQL PostgreSQL存储过程需要安装
```
注意:EasyScheduler本身不依赖Hadoop、Hive、Spark、PostgreSQL,仅是会调用他们的Client,用于对应任务的运行。
```
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## 项目编译
* 执行编译命令:
```
mvn -U clean package assembly:assembly -Dmaven.test.skip=true
```
* 查看目录
正常编译完后,会在当前目录生成 target/escheduler-{version}/
```
bin
conf
lib
script
sql
install.sh
```
- 说明
```
bin : 基础服务启动脚本
conf : 项目配置文件
lib : 项目依赖jar包,包括各个模块jar和第三方jar
script : 集群启动、停止和服务监控启停脚本
sql : 项目依赖sql文件
install.sh : 一键部署脚本
```
## 数据库初始化
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* 创建database和账号
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```
mysql -h {host} -u {user} -p{password}
mysql> CREATE DATABASE escheduler DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
mysql> GRANT ALL PRIVILEGES ON escheduler.* TO '{user}'@'%' IDENTIFIED BY '{password}';
mysql> GRANT ALL PRIVILEGES ON escheduler.* TO '{user}'@'localhost' IDENTIFIED BY '{password}';
mysql> flush privileges;
```
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* 创建表和导入基础数据
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```
说明:在 target/escheduler-{version}/sql/escheduler.sql和quartz.sql
mysql -h {host} -u {user} -p{password} -D {db} < escheduler.sql
mysql -h {host} -u {user} -p{password} -D {db} < quartz.sql
```
## 创建部署用户
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因为escheduler worker都是以 sudo -u {linux-user} 方式来执行作业,所以部署用户需要有 sudo 权限,而且是免密的。
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```部署账号
vi /etc/sudoers
# 部署用户是 escheduler 账号
escheduler ALL=(ALL) NOPASSWD: NOPASSWD: ALL
# 并且需要注释掉 Default requiretty 一行
#Default requiretty
```
## 配置文件说明
```
说明:配置文件位于 target/escheduler-{version}/conf 下面
```
### escheduler-alert
配置邮件告警信息
* alert.properties
```
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#以qq邮箱为例,如果是别的邮箱,请更改对应配置
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#alert type is EMAIL/SMS
alert.type=EMAIL
# mail server configuration
mail.protocol=SMTP
mail.server.host=smtp.exmail.qq.com
mail.server.port=25
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mail.sender=xxxxxxx@qq.com
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mail.passwd=xxxxxxx
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# xls file path, need manually create it before use if not exist
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xls.file.path=/opt/xls
```
### escheduler-common
通用配置文件配置,队列选择及地址配置,通用文件目录配置
- common/common.properties
```
#task queue implementation, default "zookeeper"
escheduler.queue.impl=zookeeper
# user data directory path, self configuration, please make sure the directory exists and have read write permissions
data.basedir.path=/tmp/escheduler
# directory path for user data download. self configuration, please make sure the directory exists and have read write permissions
data.download.basedir.path=/tmp/escheduler/download
# process execute directory. self configuration, please make sure the directory exists and have read write permissions
process.exec.basepath=/tmp/escheduler/exec
# data base dir, resource file will store to this hadoop hdfs path, self configuration, please make sure the directory exists on hdfs and have read write permissions。"/escheduler" is recommended
data.store2hdfs.basepath=/escheduler
# whether hdfs starts
hdfs.startup.state=true
# system env path. self configuration, please make sure the directory and file exists and have read write execute permissions
escheduler.env.path=/opt/.escheduler_env.sh
escheduler.env.py=/opt/escheduler_env.py
#resource.view.suffixs
resource.view.suffixs=txt,log,sh,conf,cfg,py,java,sql,hql,xml
# is development state? default "false"
development.state=false
```
SHELL任务 环境变量配置
```
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说明:配置文件位于 target/escheduler-{version}/conf/env 下面,这个会是Worker执行任务时加载的环境
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```
.escheduler_env.sh
```
export HADOOP_HOME=/opt/soft/hadoop
export HADOOP_CONF_DIR=/opt/soft/hadoop/etc/hadoop
export SPARK_HOME1=/opt/soft/spark1
export SPARK_HOME2=/opt/soft/spark2
export PYTHON_HOME=/opt/soft/python
export JAVA_HOME=/opt/soft/java
export HIVE_HOME=/opt/soft/hive
export PATH=$HADOOP_HOME/bin:$SPARK_HOME1/bin:$SPARK_HOME2/bin:$PYTHON_HOME/bin:$JAVA_HOME/bin:$HIVE_HOME/bin:$PATH
```
Python任务 环境变量配置
```
说明:配置文件位于 target/escheduler-{version}/conf/env 下面
```
escheduler_env.py
```
import os
HADOOP_HOME="/opt/soft/hadoop"
SPARK_HOME1="/opt/soft/spark1"
SPARK_HOME2="/opt/soft/spark2"
PYTHON_HOME="/opt/soft/python"
JAVA_HOME="/opt/soft/java"
HIVE_HOME="/opt/soft/hive"
PATH=os.environ['PATH']
PATH="%s/bin:%s/bin:%s/bin:%s/bin:%s/bin:%s/bin:%s"%(HIVE_HOME,HADOOP_HOME,SPARK_HOME1,SPARK_HOME2,JAVA_HOME,PYTHON_HOME,PATH)
os.putenv('PATH','%s'%PATH)
```
hadoop 配置文件
- common/hadoop/hadoop.properties
```
# ha or single namenode,If namenode ha needs to copy core-site.xml and hdfs-site.xml to the conf directory
fs.defaultFS=hdfs://mycluster:8020
#resourcemanager ha note this need ips , this empty if single
yarn.resourcemanager.ha.rm.ids=192.168.xx.xx,192.168.xx.xx
# If it is a single resourcemanager, you only need to configure one host name. If it is resourcemanager HA, the default configuration is fine
yarn.application.status.address=http://ark1:8088/ws/v1/cluster/apps/%s
```
定时器配置文件
- quartz.properties
```
#============================================================================
# Configure Main Scheduler Properties
#============================================================================
org.quartz.scheduler.instanceName = EasyScheduler
org.quartz.scheduler.instanceId = AUTO
org.quartz.scheduler.makeSchedulerThreadDaemon = true
org.quartz.jobStore.useProperties = false
#============================================================================
# Configure ThreadPool
#============================================================================
org.quartz.threadPool.class = org.quartz.simpl.SimpleThreadPool
org.quartz.threadPool.makeThreadsDaemons = true
org.quartz.threadPool.threadCount = 25
org.quartz.threadPool.threadPriority = 5
#============================================================================
# Configure JobStore
#============================================================================
org.quartz.jobStore.class = org.quartz.impl.jdbcjobstore.JobStoreTX
org.quartz.jobStore.driverDelegateClass = org.quartz.impl.jdbcjobstore.StdJDBCDelegate
org.quartz.jobStore.tablePrefix = QRTZ_
org.quartz.jobStore.isClustered = true
org.quartz.jobStore.misfireThreshold = 60000
org.quartz.jobStore.clusterCheckinInterval = 5000
org.quartz.jobStore.dataSource = myDs
#============================================================================
# Configure Datasources
#============================================================================
org.quartz.dataSource.myDs.driver = com.mysql.jdbc.Driver
org.quartz.dataSource.myDs.URL = jdbc:mysql://192.168.xx.xx:3306/escheduler?characterEncoding=utf8&useSSL=false
org.quartz.dataSource.myDs.user = xx
org.quartz.dataSource.myDs.password = xx
org.quartz.dataSource.myDs.maxConnections = 10
org.quartz.dataSource.myDs.validationQuery = select 1
```
zookeeper 配置文件
- zookeeper.properties
```
#zookeeper cluster
zookeeper.quorum=192.168.xx.xx:2181,192.168.xx.xx:2181,192.168.xx.xx:2181
#escheduler root directory
zookeeper.escheduler.root=/escheduler
#zookeeper server dirctory
zookeeper.escheduler.dead.servers=/escheduler/dead-servers
zookeeper.escheduler.masters=/escheduler/masters
zookeeper.escheduler.workers=/escheduler/workers
#zookeeper lock dirctory
zookeeper.escheduler.lock.masters=/escheduler/lock/masters
zookeeper.escheduler.lock.workers=/escheduler/lock/workers
#escheduler failover directory
zookeeper.escheduler.lock.masters.failover=/escheduler/lock/failover/masters
zookeeper.escheduler.lock.workers.failover=/escheduler/lock/failover/workers
#escheduler failover directory
zookeeper.session.timeout=300
zookeeper.connection.timeout=300
zookeeper.retry.sleep=1000
zookeeper.retry.maxtime=5
```
### escheduler-dao
dao数据源配置
- dao/data_source.properties
```
# base spring data source configuration
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://192.168.xx.xx:3306/escheduler?characterEncoding=UTF-8
spring.datasource.username=xx
spring.datasource.password=xx
# connection configuration
spring.datasource.initialSize=5
# min connection number
spring.datasource.minIdle=5
# max connection number
spring.datasource.maxActive=50
# max wait time for get a connection in milliseconds. if configuring maxWait, fair locks are enabled by default and concurrency efficiency decreases.
# If necessary, unfair locks can be used by configuring the useUnfairLock attribute to true.
spring.datasource.maxWait=60000
# milliseconds for check to close free connections
spring.datasource.timeBetweenEvictionRunsMillis=60000
# the Destroy thread detects the connection interval and closes the physical connection in milliseconds if the connection idle time is greater than or equal to minEvictableIdleTimeMillis.
spring.datasource.timeBetweenConnectErrorMillis=60000
# the longest time a connection remains idle without being evicted, in milliseconds
spring.datasource.minEvictableIdleTimeMillis=300000
#the SQL used to check whether the connection is valid requires a query statement. If validation Query is null, testOnBorrow, testOnReturn, and testWhileIdle will not work.
spring.datasource.validationQuery=SELECT 1
#check whether the connection is valid for timeout, in seconds
spring.datasource.validationQueryTimeout=3
# when applying for a connection, if it is detected that the connection is idle longer than time Between Eviction Runs Millis,
# validation Query is performed to check whether the connection is valid
spring.datasource.testWhileIdle=true
#execute validation to check if the connection is valid when applying for a connection
spring.datasource.testOnBorrow=true
#execute validation to check if the connection is valid when the connection is returned
spring.datasource.testOnReturn=false
spring.datasource.defaultAutoCommit=true
spring.datasource.keepAlive=true
# open PSCache, specify count PSCache for every connection
spring.datasource.poolPreparedStatements=true
spring.datasource.maxPoolPreparedStatementPerConnectionSize=20
```
### escheduler-server
master配置文件
- master.properties
```
# master execute thread num
master.exec.threads=100
# master execute task number in parallel
master.exec.task.number=20
# master heartbeat interval
master.heartbeat.interval=10
# master commit task retry times
master.task.commit.retryTimes=5
# master commit task interval
master.task.commit.interval=100
# only less than cpu avg load, master server can work. default value : the number of cpu cores * 2
master.max.cpuload.avg=10
# only larger than reserved memory, master server can work. default value : physical memory * 1/10, unit is G.
master.reserved.memory=1
```
worker配置文件
- worker.properties
```
# worker execute thread num
worker.exec.threads=100
# worker heartbeat interval
worker.heartbeat.interval=10
# submit the number of tasks at a time
worker.fetch.task.num = 10
# only less than cpu avg load, worker server can work. default value : the number of cpu cores * 2
worker.max.cpuload.avg=10
# only larger than reserved memory, worker server can work. default value : physical memory * 1/6, unit is G.
worker.reserved.memory=1
```
### escheduler-api
web配置文件
- application.properties
```
# server port
server.port=12345
# session config
server.session.timeout=7200
server.context-path=/escheduler/
# file size limit for upload
spring.http.multipart.max-file-size=1024MB
spring.http.multipart.max-request-size=1024MB
# post content
server.max-http-post-size=5000000
```
## 伪分布式部署
### 1,创建部署用户
如上 **创建部署用户**
### 2,根据实际需求来创建HDFS根路径
根据 **common/common.properties****hdfs.startup.state** 的配置来判断是否启动HDFS,如果启动,则需要创建HDFS根路径,并将 **owner** 修改为**部署用户**,否则忽略此步骤
### 3,项目编译
如上进行 **项目编译**
### 4,修改配置文件
根据 **配置文件说明** 修改配置文件和 **环境变量** 文件
### 5,创建目录并将环境变量文件复制到指定目录
- 创建 **common/common.properties** 下的data.basedir.path、data.download.basedir.path和process.exec.basepath路径
- 将**.escheduler_env.sh** 和 **escheduler_env.py** 两个环境变量文件复制到 **common/common.properties**配置的**escheduler.env.path****escheduler.env.py** 的目录下,并将 **owner** 修改为**部署用户**
### 6,启停服务
* 启停Master
```启动master
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sh ./bin/escheduler-daemon.sh start master-server
sh ./bin/escheduler-daemon.sh stop master-server
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```
* 启停Worker
```
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sh ./bin/escheduler-daemon.sh start worker-server
sh ./bin/escheduler-daemon.sh stop worker-server
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```
* 启停Api
```
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sh ./bin/escheduler-daemon.sh start api-server
sh ./bin/escheduler-daemon.sh stop api-server
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```
* 启停Logger
```
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sh ./bin/escheduler-daemon.sh start logger-server
sh ./bin/escheduler-daemon.sh stop logger-server
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```
* 启停Alert
```
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sh ./bin/escheduler-daemon.sh start alert-server
sh ./bin/escheduler-daemon.sh stop alert-server
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```
## 分布式部署
### 1,创建部署用户
- 在需要部署调度的机器上如上 **创建部署用户**
- [将 **主机器** 和各个其它机器SSH打通](https://blog.csdn.net/thinkmore1314/article/details/22489203)
### 2,根据实际需求来创建HDFS根路径
根据 **common/common.properties****hdfs.startup.state** 的配置来判断是否启动HDFS,如果启动,则需要创建HDFS根路径,并将 **owner** 修改为**部署用户**,否则忽略此步骤
### 3,项目编译
如上进行 **项目编译**
### 4,将环境变量文件复制到指定目录
将**.escheduler_env.sh** 和 **escheduler_env.py** 两个环境变量文件复制到 **common/common.properties**配置的**escheduler.env.path****escheduler.env.py** 的目录下,并将 **owner** 修改为**部署用户**
### 5,修改 install.sh
修改 install.sh 中变量的值,替换成自身业务所需的值
### 6,一键部署
- 安装 pip install kazoo
- 使用部署用户 sh install.sh 一键部署
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- 注意:scp_hosts.sh 里 `tar -zxvf $workDir/../escheduler-1.0.0.tar.gz -C $installPath` 中的版本号(1.0.0)需要执行前手动替换成对应的版本号
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## 服务监控
monitor_server.py 脚本是监听,master和worker服务挂掉重启的脚本
注意:在全部服务都启动之后启动
nohup python -u monitor_server.py > nohup.out 2>&1 &
## 日志查看
日志统一存放于指定文件夹内
```日志路径
logs/
├── escheduler-alert-server.log
├── escheduler-master-server.log
|—— escheduler-worker-server.log
|—— escheduler-api-server.log
|—— escheduler-logger-server.log
```