install-escheduler-ui.sh,monitor_server.py and install.sh scripts comment change to english and install-escheduler-ui.sh use escheduler change to dolphinscheduler (#812)

* service start exception modify

* master，worker start modify

* .env update

* install-escheduler-ui.sh,monitor_server.py and install.sh scripts comment change to english and install-escheduler-ui.sh use escheduler change to dolphinscheduler

escheduler-ui/install-escheduler-ui.sh

@@ -1,21 +1,21 @@
 #!/bin/bash
-# 当前路径
+# current path
 esc_basepath=$(cd `dirname $0`; pwd)
 
 menu(){
         cat <<END
 =================================================
-        1.CentOS6安装
-        2.CentOS7安装
-        3.Ubuntu安装
-        4.退出
+        1.CentOS6 Installation
+        2.CentOS7 Installation
+        3.Ubuntu Installation
+        4.Exit
 =================================================
 END
 }
 
 
-# 创建文件并配置nginx
-eschedulerConf(){
+# create a file and configure nginx
+dolphinschedulerConf(){
 
     E_host='$host'
     E_remote_addr='$remote_addr'
@@ -23,16 +23,16 @@ eschedulerConf(){
     E_http_upgrade='$http_upgrade'
     echo "
         server {
-            listen       $1;# 访问端口
+            listen       $1;# access port
             server_name  localhost;
             #charset koi8-r;
             #access_log  /var/log/nginx/host.access.log  main;
             location / {
-            root   ${esc_basepath}/dist; # 静态文件目录
+            root   ${esc_basepath}/dist; # static file directory
             index  index.html index.html;
             }
             location /escheduler {
-            proxy_pass $2; # 接口地址
+            proxy_pass $2; # interface address
             proxy_set_header Host $E_host;
             proxy_set_header X-Real-IP $E_remote_addr;
             proxy_set_header x_real_ipP $E_remote_addr;
@@ -53,21 +53,21 @@ eschedulerConf(){
             root   /usr/share/nginx/html;
             }
         }
-    " >> /etc/nginx/conf.d/escheduler.conf
+    " >> /etc/nginx/conf.d/dolphinscheduler.conf
 
 }
 
 ubuntu(){
-    #更新源
+    # update source
     apt-get update
 
-    #安装nginx
+    # install nginx
     apt-get install -y nginx
 
-    # 配置nginx
-    eschedulerConf $1 $2
+    # config nginx
+    dolphinschedulerConf $1 $2
 
-    # 启动nginx
+    # startup nginx
     /etc/init.d/nginx start
     sleep 1
     if [ $? -ne 0 ];then
@@ -81,17 +81,17 @@ centos7(){
     rpm -Uvh http://nginx.org/packages/centos/7/noarch/RPMS/nginx-release-centos-7-0.el7.ngx.noarch.rpm
     yum install -y nginx
 
-    # 配置nginx
-    eschedulerConf $1 $2
+    # config nginx
+    dolphinschedulerConf $1 $2
 
-    # 解决 0.0.0.0:8888 问题
+    # solve 0.0.0.0:8888 problem
     yum -y install policycoreutils-python
     semanage port -a -t http_port_t -p tcp $esc_proxy
 
-    # 开放前端访问端口
+    # open front access port
     firewall-cmd --zone=public --add-port=$esc_proxy/tcp --permanent
 
-    # 启动nginx
+    # startup nginx
     systemctl start nginx
     sleep 1
     if [ $? -ne 0 ];then
@@ -99,9 +99,9 @@ centos7(){
     fi
     nginx -s reload
 
-    # 调整SELinux的参数
+    # set SELinux parameters
     sed -i "s/SELINUX=enforcing/SELINUX=disabled/g" /etc/selinux/config
-    # 临时生效
+    # temporary effect
     setenforce 0
 
 }
@@ -114,10 +114,10 @@ centos6(){
     # install nginx
     yum install nginx -y
 
-    # 配置nginx
-    eschedulerConf $1 $2
+    # config nginx
+    dolphinschedulerConf $1 $2
 
-    # 启动nginx
+    # startup nginx
     /etc/init.d/nginx start
     sleep 1
 	if [ $? -ne 0 ];then
@@ -125,17 +125,17 @@ centos6(){
     fi
     nginx -s reload
 
-    # 调整SELinux的参数
+    # set SELinux parameters
     sed -i "s/SELINUX=enforcing/SELINUX=disabled/g" /etc/selinux/config
 
-    # 临时生效
+    # temporary effect
     setenforce 0
 
 }
 
 function main(){
-	echo "欢迎使用easy scheduler前端部署脚本,目前前端部署脚本仅支持CentOS,Ubuntu"
-	echo "请在 escheduler-ui 目录下执行"
+	echo "Welcome to thedolphinscheduler front-end deployment script, which is currently only supported by front-end deployment scripts : CentOS and Ubuntu"
+	echo "Please execute in the dolphinscheduler-ui directory"
 
 	#To be compatible with MacOS and Linux
 	if [[ "$OSTYPE" == "darwin"* ]]; then
@@ -166,33 +166,33 @@ function main(){
 	fi
 
 
-	# 配置前端访问端口
-	read -p "请输入nginx代理端口，不输入，则默认8888 :" esc_proxy_port
+	# config front-end access ports
+	read -p "Please enter the nginx proxy port, do not enter, the default is 8888 :" esc_proxy_port
 	if [ -z "${esc_proxy_port}" ];then
     	esc_proxy_port="8888"
 	fi
 
-	read -p "请输入api server代理ip,必须输入，例如：192.168.xx.xx :" esc_api_server_ip
+	read -p "Please enter the api server proxy ip, you must enter, for example: 192.168.xx.xx :" esc_api_server_ip
 	if [ -z "${esc_api_server_ip}" ];then
-		echo "api server代理ip不能为空."
+		echo "api server proxy ip can not be empty."
 		exit 1
 	fi
 
-	read -p "请输入api server代理端口,不输入，则默认12345 :" esc_api_server_port
+	read -p "Please enter the api server proxy port, do not enter, the default is 12345:" esc_api_server_port
 	if [ -z "${esc_api_server_port}" ];then
 		esc_api_server_port="12345"
 	fi
 
-	# api server后端地址
+	# api server backend address
 	esc_api_server="http://$esc_api_server_ip:$esc_api_server_port"
 
-	# 本机ip地址
+	# local ip address
 	esc_ipaddr=$(ip a | grep inet | grep -v inet6 | grep -v 127 | sed 's/^[ \t]*//g' | cut -d ' ' -f2 | head -n 1 | awk -F '/' '{print $1}')
 
-	# 提示信息
+	# Prompt message
 	menu
 
-	read -p "请输入安装编号(1|2|3|4)：" num
+	read -p "Please enter the installation number(1|2|3|4)：" num
 
    	case $num in
         	1)
@@ -212,7 +212,7 @@ function main(){
                 	echo $"Usage :sh $0"
                 	exit 1
 	esac
-	echo "请浏览器访问：http://${esc_ipaddr}:${esc_proxy_port}"
+	echo "Please visit the browser：http://${esc_ipaddr}:${esc_proxy_port}"
 
 }
 

install.sh

@@ -34,252 +34,257 @@ fi
 source ${workDir}/conf/config/run_config.conf
 source ${workDir}/conf/config/install_config.conf
 
-# mysql配置
-# mysql 地址,端口
+# mysql config
+# mysql address and port
 mysqlHost="192.168.xx.xx:3306"
 
-# mysql 数据库名称
+# mysql database
 mysqlDb="escheduler"
 
-# mysql 用户名
+# mysql username
 mysqlUserName="xx"
 
-# mysql 密码
-# 注意：如果有特殊字符，请用 \ 转移符进行转移
+# mysql passwprd
+# Note: if there are special characters, please use the \ transfer character to transfer
 mysqlPassword="xx"
 
-# conf/config/install_config.conf配置
-# 注意：安装路径,不要当前路径(pwd)一样
+# conf/config/install_config.conf config
+# Note: the installation path is not the same as the current path (pwd)
 installPath="/data1_1T/escheduler"
 
-# 部署用户
-# 注意：部署用户需要有sudo权限及操作hdfs的权限，如果开启hdfs，根目录需要自行创建
+# deployment user
+# Note: the deployment user needs to have sudo privileges and permissions to operate hdfs. If hdfs is enabled, the root directory needs to be created by itself
 deployUser="escheduler"
 
-# zk集群
+# zk cluster
 zkQuorum="192.168.xx.xx:2181,192.168.xx.xx:2181,192.168.xx.xx:2181"
 
-# 安装hosts
-# 注意：安装调度的机器hostname列表，如果是伪分布式，则只需写一个伪分布式hostname即可
+# install hosts
+# Note: install the scheduled hostname list. If it is pseudo-distributed, just write a pseudo-distributed hostname
 ips="ark0,ark1,ark2,ark3,ark4"
 
-# conf/config/run_config.conf配置
-# 运行Master的机器
-# 注意：部署master的机器hostname列表
+# conf/config/run_config.conf config
+# run master machine
+# Note: list of hosts hostname for deploying master
 masters="ark0,ark1"
 
-# 运行Worker的机器
-# 注意：部署worker的机器hostname列表
+# run worker machine
+# note: list of machine hostnames for deploying workers
 workers="ark2,ark3,ark4"
 
-# 运行Alert的机器
-# 注意：部署alert server的机器hostname列表
+# run alert machine
+# note: list of machine hostnames for deploying alert server
 alertServer="ark3"
 
-# 运行Api的机器
-# 注意：部署api server的机器hostname列表
+# run api machine
+# note: list of machine hostnames for deploying api server
 apiServers="ark1"
 
-# alert配置
-# 邮件协议
+# alert config
+# mail protocol
 mailProtocol="SMTP"
 
-# 邮件服务host
+# mail server host
 mailServerHost="smtp.exmail.qq.com"
 
-# 邮件服务端口
+# mail server port
 mailServerPort="25"
 
-# 发送人
+# sender
 mailSender="xxxxxxxxxx"
 
-# 发送人密码
+# sender password
 mailPassword="xxxxxxxxxx"
 
-# TLS邮件协议支持
+# TLS mail protocol support
 starttlsEnable="false"
 
-# SSL邮件协议支持
-# 注意：默认开启的是SSL协议，TLS和SSL只能有一个处于true状态
+# SSL mail protocol support
+# note: The SSL protocol is enabled by default. 
+# only one of TLS and SSL can be in the true state.
 sslEnable="true"
 
-# 下载Excel路径
+# download excel path
 xlsFilePath="/tmp/xls"
 
-# 企业微信企业ID配置
+# Enterprise WeChat Enterprise ID Configuration
 enterpriseWechatCorpId="xxxxxxxxxx"
 
-# 企业微信应用Secret配置
+# Enterprise WeChat application Secret configuration
 enterpriseWechatSecret="xxxxxxxxxx"
 
-# 企业微信应用AgentId配置
+# Enterprise WeChat Application AgentId Configuration
 enterpriseWechatAgentId="xxxxxxxxxx"
 
-# 企业微信用户配置,多个用户以,分割
+# Enterprise WeChat user configuration, multiple users to , split
 enterpriseWechatUsers="xxxxx,xxxxx"
 
 
-#是否启动监控自启动脚本
+# whether to start monitoring self-starting scripts
 monitorServerState="false"
 
-# 资源中心上传选择存储方式：HDFS,S3,NONE
+# resource Center upload and select storage method：HDFS,S3,NONE
 resUploadStartupType="NONE"
 
-# 如果resUploadStartupType为HDFS，defaultFS写namenode地址，支持HA,需要将core-site.xml和hdfs-site.xml放到conf目录下
-# 如果是S3，则写S3地址，比如说：s3a://escheduler，注意，一定要创建根目录/escheduler
+# if resUploadStartupType is HDFS，defaultFS write namenode address，HA you need to put core-site.xml and hdfs-site.xml in the conf directory.
+# if S3，write S3 address，HA，for example ：s3a://escheduler，
+# Note，s3 be sure to create the root directory /escheduler
 defaultFS="hdfs://mycluster:8020"
 
-# 如果配置了S3，则需要有以下配置
+# if S3 is configured, the following configuration is required.
 s3Endpoint="http://192.168.xx.xx:9010"
 s3AccessKey="xxxxxxxxxx"
 s3SecretKey="xxxxxxxxxx"
 
-# resourcemanager HA配置，如果是单resourcemanager,这里为yarnHaIps=""
+# resourcemanager HA configuration, if it is a single resourcemanager, here is yarnHaIps=""
 yarnHaIps="192.168.xx.xx,192.168.xx.xx"
 
-# 如果是单 resourcemanager,只需要配置一个主机名称,如果是resourcemanager HA,则默认配置就好
+# if it is a single resourcemanager, you only need to configure one host name. If it is resourcemanager HA, the default configuration is fine.
 singleYarnIp="ark1"
 
-# hdfs根路径，根路径的owner必须是部署用户。1.1.0之前版本不会自动创建hdfs根目录，需要自行创建
+# hdfs root path, the owner of the root path must be the deployment user. 
+# versions prior to 1.1.0 do not automatically create the hdfs root directory, you need to create it yourself.
 hdfsPath="/escheduler"
 
-# 拥有在hdfs根路径/下创建目录权限的用户
-# 注意：如果开启了kerberos，则直接hdfsRootUser=""，就可以
+# have users who create directory permissions under hdfs root path /
+# Note: if kerberos is enabled, hdfsRootUser="" can be used directly.
 hdfsRootUser="hdfs"
 
-# common 配置
-# 程序路径
+# common config
+# Program root path
 programPath="/tmp/escheduler"
 
-#下载路径
+# download path
 downloadPath="/tmp/escheduler/download"
 
-# 任务执行路径
+# task execute path
 execPath="/tmp/escheduler/exec"
 
-# SHELL环境变量路径
+# SHELL environmental variable path
 shellEnvPath="$installPath/conf/env/.escheduler_env.sh"
 
-# 资源文件的后缀
+# suffix of the resource file
 resSuffixs="txt,log,sh,conf,cfg,py,java,sql,hql,xml"
 
-# 开发状态,如果是true,对于SHELL脚本可以在execPath目录下查看封装后的SHELL脚本,如果是false则执行完成直接删除
+# development status, if true, for the SHELL script, you can view the encapsulated SHELL script in the execPath directory. 
+# If it is false, execute the direct delete
 devState="true"
 
-# kerberos 配置
-# kerberos 是否启动
+# kerberos config
+# kerberos whether to start
 kerberosStartUp="false"
 
-# kdc krb5 配置文件路径
+# kdc krb5 config file path
 krb5ConfPath="$installPath/conf/krb5.conf"
 
-# keytab 用户名
+# keytab username
 keytabUserName="hdfs-mycluster@ESZ.COM"
 
-# 用户 keytab路径
+# username keytab path
 keytabPath="$installPath/conf/hdfs.headless.keytab"
 
-# zk 配置
-# zk根目录
+# zk config
+# zk root directory
 zkRoot="/escheduler"
 
-# 用来记录挂掉机器的zk目录
+# used to record the zk directory of the hanging machine
 zkDeadServers="/escheduler/dead-servers"
 
-# masters目录
-zkMasters="/escheduler/masters"
+# masters directory
+zkMasters="$zkRoot/masters"
 
-# workers目录
-zkWorkers="/escheduler/workers"
+# workers directory
+zkWorkers="$zkRoot/workers"
 
-# zk master分布式锁
-mastersLock="/escheduler/lock/masters"
+# zk master distributed lock
+mastersLock="$zkRoot/lock/masters"
 
-# zk worker分布式锁
-workersLock="/escheduler/lock/workers"
+# zk worker distributed lock
+workersLock="$zkRoot/lock/workers"
 
-# zk master容错分布式锁
-mastersFailover="/escheduler/lock/failover/masters"
+# zk master fault-tolerant distributed lock
+mastersFailover="$zkRoot/lock/failover/masters"
 
-# zk worker容错分布式锁
-workersFailover="/escheduler/lock/failover/workers"
+# zk worker fault-tolerant distributed lock
+workersFailover="$zkRoot/lock/failover/workers"
 
-# zk master启动容错分布式锁
-mastersStartupFailover="/escheduler/lock/failover/startup-masters"
+# zk master start fault tolerant distributed lock
+mastersStartupFailover="$zkRoot/lock/failover/startup-masters"
 
-# zk session 超时
+# zk session timeout
 zkSessionTimeout="300"
 
-# zk 连接超时
+# zk connection timeout
 zkConnectionTimeout="300"
 
-# zk 重试间隔
+# zk retry interval
 zkRetrySleep="100"
 
-# zk重试最大次数
+# zk retry maximum number of times
 zkRetryMaxtime="5"
 
 
-# master 配置
-# master执行线程最大数,流程实例的最大并行度
+# master config 
+# master execution thread maximum number, maximum parallelism of process instance
 masterExecThreads="100"
 
-# master任务执行线程最大数,每一个流程实例的最大并行度
+# the maximum number of master task execution threads, the maximum degree of parallelism for each process instance
 masterExecTaskNum="20"
 
-# master心跳间隔
+# master heartbeat interval
 masterHeartbeatInterval="10"
 
-# master任务提交重试次数
+# master task submission retries
 masterTaskCommitRetryTimes="5"
 
-# master任务提交重试时间间隔
+# master task submission retry interval
 masterTaskCommitInterval="100"
 
-# master最大cpu平均负载,用来判断master是否还有执行能力
+# master maximum cpu average load, used to determine whether the master has execution capability
 masterMaxCpuLoadAvg="10"
 
-# master预留内存,用来判断master是否还有执行能力
+# master reserve memory to determine if the master has execution capability
 masterReservedMemory="1"
 
 
-# worker 配置
-# worker执行线程
+# worker config 
+# worker execution thread
 workerExecThreads="100"
 
-# worker心跳间隔
+# worker heartbeat interval
 workerHeartbeatInterval="10"
 
-# worker一次抓取任务数
+# worker number of fetch tasks
 workerFetchTaskNum="3"
 
-# worker最大cpu平均负载,用来判断worker是否还有执行能力,保持系统默认，默认为cpu核数的2倍，当负载达到2倍时，
+# workerThe maximum cpu average load, used to determine whether the worker still has the ability to execute, 
+# keep the system default, the default is twice the number of cpu cores, when the load reaches 2 times
 #workerMaxCupLoadAvg="10"
 
-# worker预留内存,用来判断master是否还有执行能力
+# worker reserve memory to determine if the master has execution capability
 workerReservedMemory="1"
 
-# api 配置
-# api 服务端口
+# api config
+# api server port
 apiServerPort="12345"
 
-# api session 超时
+# api session timeout
 apiServerSessionTimeout="7200"
 
-# api 上下文路径
+# api server context path
 apiServerContextPath="/escheduler/"
 
-# spring 最大文件大小
+# spring max file size
 springMaxFileSize="1024MB"
 
-# spring 最大请求文件大小
+# spring max request size
 springMaxRequestSize="1024MB"
 
-# api 最大post请求大小
+# api max http post size
 apiMaxHttpPostSize="5000000"
 
-# 1,替换文件
-echo "1,替换文件"
+# 1,replace file
+echo "1,replace file"
 sed -i ${txt} "s#spring.datasource.url.*#spring.datasource.url=jdbc:mysql://${mysqlHost}/${mysqlDb}?characterEncoding=UTF-8#g" conf/dao/data_source.properties
 sed -i ${txt} "s#spring.datasource.username.*#spring.datasource.username=${mysqlUserName}#g" conf/dao/data_source.properties
 sed -i ${txt} "s#spring.datasource.password.*#spring.datasource.password=${mysqlPassword}#g" conf/dao/data_source.properties
@@ -375,8 +380,8 @@ sed -i ${txt} "s#alertServer.*#alertServer=${alertServer}#g" conf/config/run_con
 sed -i ${txt} "s#apiServers.*#apiServers=${apiServers}#g" conf/config/run_config.conf
 
 
-# 2,创建目录
-echo "2,创建目录"
+# 2,create directory
+echo "2,create directory"
 
 if [ ! -d $installPath ];then
   sudo mkdir -p $installPath
@@ -387,22 +392,22 @@ hostsArr=(${ips//,/ })
 for host in ${hostsArr[@]}
 do
 
-# 如果programPath不存在,则创建
+# create if programPath does not exist
 if ! ssh $host test -e $programPath; then
   ssh $host "sudo mkdir -p $programPath;sudo chown -R $deployUser:$deployUser $programPath"
 fi
 
-# 如果downloadPath不存在,则创建
+# create if downloadPath does not exist
 if ! ssh $host test -e $downloadPath; then
   ssh $host "sudo mkdir -p $downloadPath;sudo chown -R $deployUser:$deployUser $downloadPath"
 fi
 
-# 如果$execPath不存在,则创建
+# create if execPath does not exist
 if ! ssh $host test -e $execPath; then
   ssh $host "sudo mkdir -p $execPath; sudo chown -R $deployUser:$deployUser $execPath"
 fi
 
-# 如果$xlsFilePath不存在,则创建
+# create if xlsFilePath does not exist
 if ! ssh $host test -e $xlsFilePath; then
   ssh $host "sudo mkdir -p $xlsFilePath; sudo chown -R $deployUser:$deployUser $xlsFilePath"
 fi
@@ -410,31 +415,31 @@ fi
 done
 
 
-# 3,停止服务
-echo "3,停止服务"
-sh ${workDir}/script/stop_all.sh
+# 3,stop server
+echo "3,stop server"
+sh ${workDir}/script/stop-all.sh
 
-# 4,删除zk节点
-echo "4,删除zk节点"
+# 4,delete zk node
+echo "4,delete zk node"
 sleep 1
-python ${workDir}/script/del_zk_node.py $zkQuorum $zkRoot
+python ${workDir}/script/del-zk-node.py $zkQuorum $zkRoot
 
-# 5,scp资源
-echo "5,scp资源"
-sh ${workDir}/script/scp_hosts.sh
+# 5,scp resources
+echo "5,scp resources"
+sh ${workDir}/script/scp-hosts.sh
 if [ $? -eq 0 ]
 then
-	echo 'scp拷贝完成'
+	echo 'scp copy completed'
 else
-	echo 'sc 拷贝失败退出'
+	echo 'sc copy failed to exit'
 	exit -1
 fi
 
-# 6,启动
-echo "6,启动"
-sh ${workDir}/script/start_all.sh
+# 6,startup
+echo "6,startup"
+sh ${workDir}/script/start-all.sh
 
-# 7,启动监控自启动脚本
+# 7,start monitoring self-starting script
 monitor_pid=${workDir}/monitor_server.pid
 if [ "true" = $monitorServerState ];then
         if [ -f $monitor_pid ]; then
@@ -453,9 +458,8 @@ if [ "true" = $monitorServerState ];then
                 echo "monitor server running as process ${TARGET_PID}.Stopped success"
                 rm -f $monitor_pid
         fi
-        nohup python -u ${workDir}/script/monitor_server.py $installPath $zkQuorum $zkMasters $zkWorkers > ${workDir}/monitor_server.log 2>&1 &
+        nohup python -u ${workDir}/script/monitor-server.py $installPath $zkQuorum $zkMasters $zkWorkers > ${workDir}/monitor-server.log 2>&1 &
         echo $! > $monitor_pid
         echo "start monitor server success as process `cat $monitor_pid`"
 
-fi
-
+fi

script/monitor_server.py

@@ -1,21 +1,26 @@
 #!/usr/bin/env python
 # -*- coding:utf-8 -*-
-# Author:qiaozhanwei
 
 '''
-yum 安装pip
+1, yum install pip
 yum -y install python-pip
 
-pip install kazoo 安装
-conda install -c conda-forge kazoo 安装
+2, pip install kazoo
+pip install kazoo
 
-运行脚本及参数说明：
+or
+
+3, conda install kazoo
+conda install -c conda-forge kazoo
+
+run script and parameter description：
 nohup python -u monitor_server.py /data1_1T/escheduler 192.168.xx.xx:2181,192.168.xx.xx:2181,192.168.xx.xx:2181 /escheduler/masters /escheduler/workers> monitor_server.log 2>&1 &
-参数说明如下:
-/data1_1T/escheduler的值来自install.sh中的installPath
-192.168.xx.xx:2181,192.168.xx.xx:2181,192.168.xx.xx:2181的值来自install.sh中的zkQuorum
-/escheduler/masters的值来自install.sh中的zkMasters
-/escheduler/workers的值来自install.sh中的zkWorkers
+the parameters are as follows:
+/data1_1T/escheduler : the value comes from the installPath in install.sh
+192.168.xx.xx:2181,192.168.xx.xx:2181,192.168.xx.xx:2181 : the value comes from zkQuorum in install.sh
+the value comes from zkWorkers in install.sh
+/escheduler/masters : the value comes from zkMasters in install.sh
+/escheduler/workers : the value comes from zkWorkers in install.sh
 '''
 import sys
 import socket
@@ -29,11 +34,11 @@ schedule = sched.scheduler(time.time, time.sleep)
 
 class ZkClient:
     def __init__(self):
-        # hosts配置zk地址集群
+        # hosts configuration zk address cluster
 	    self.zk = KazooClient(hosts=zookeepers)
 	    self.zk.start()
 
-    # 读取配置文件，组装成字典
+    # read configuration files and assemble them into a dictionary
     def read_file(self,path):
         with open(path, 'r') as f:
             dict = {}
@@ -43,11 +48,11 @@ class ZkClient:
                     dict[arr[0]] = arr[1]
             return dict
 
-    # 根据hostname获取ip地址
+    # get the ip address according to hostname
     def get_ip_by_hostname(self,hostname):
         return socket.gethostbyname(hostname)
 
-    # 重启服务
+    # restart server
     def restart_server(self,inc):
         config_dict = self.read_file(install_path + '/conf/config/run_config.conf')
 
@@ -67,7 +72,7 @@ class ZkClient:
             restart_master_list = list(set(master_list) - set(zk_master_list))
             if (len(restart_master_list) != 0):
                 for master in restart_master_list:
-                    print("master " + self.get_ip_by_hostname(master) + " 服务已经掉了")
+                    print("master " + self.get_ip_by_hostname(master) + " server has down")
                     os.system('ssh ' + self.get_ip_by_hostname(master) + ' sh ' + install_path + '/bin/escheduler-daemon.sh start master-server')
 
         if (self.zk.exists(workers_zk_path)):
@@ -78,15 +83,15 @@ class ZkClient:
             restart_worker_list = list(set(worker_list) - set(zk_worker_list))
             if (len(restart_worker_list) != 0):
                 for worker in restart_worker_list:
-                    print("worker " + self.get_ip_by_hostname(worker) + " 服务已经掉了")
+                    print("worker " + self.get_ip_by_hostname(worker) + " server has down")
                     os.system('ssh  ' + self.get_ip_by_hostname(worker) + ' sh ' + install_path + '/bin/escheduler-daemon.sh start worker-server')
 
         print(datetime.now().strftime("%Y-%m-%d %H:%M:%S"))
         schedule.enter(inc, 0, self.restart_server, (inc,))
-    # 默认参数60s
+    # default parameter 60s
     def main(self,inc=60):
-        # enter四个参数分别为：间隔事件、优先级（用于同时间到达的两个事件同时执行时定序）、被调用触发的函数，
-        # 给该触发函数的参数（tuple形式）
+        # the enter four parameters are: interval event, priority (sequence for simultaneous execution of two events arriving at the same time), function triggered by the call，
+        # the argument to the trigger function (tuple form)
         schedule.enter(0, 0, self.restart_server, (inc,))
         schedule.run()
 if __name__ == '__main__':
@@ -97,4 +102,4 @@ if __name__ == '__main__':
     masters_zk_path = sys.argv[3]
     workers_zk_path = sys.argv[4]
     zkClient = ZkClient()
-    zkClient.main(300)
+    zkClient.main(300)