mirror of
https://gitee.com/dolphinscheduler/DolphinScheduler.git
synced 2024-12-05 05:38:30 +08:00
101 lines
4.0 KiB
Python
101 lines
4.0 KiB
Python
#!/usr/bin/env python
|
||
# -*- coding:utf-8 -*-
|
||
# Author:qiaozhanwei
|
||
|
||
'''
|
||
yum 安装pip
|
||
yum -y install python-pip
|
||
|
||
pip install kazoo 安装
|
||
conda install -c conda-forge kazoo 安装
|
||
|
||
运行脚本及参数说明：
|
||
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
|
||
'''
|
||
import sys
|
||
import socket
|
||
import os
|
||
import sched
|
||
import time
|
||
from datetime import datetime
|
||
from kazoo.client import KazooClient
|
||
|
||
schedule = sched.scheduler(time.time, time.sleep)
|
||
|
||
class ZkClient:
|
||
def __init__(self):
|
||
# hosts配置zk地址集群
|
||
self.zk = KazooClient(hosts=zookeepers)
|
||
self.zk.start()
|
||
|
||
# 读取配置文件，组装成字典
|
||
def read_file(self,path):
|
||
with open(path, 'r') as f:
|
||
dict = {}
|
||
for line in f.readlines():
|
||
arr = line.strip().split('=')
|
||
if (len(arr) == 2):
|
||
dict[arr[0]] = arr[1]
|
||
return dict
|
||
|
||
# 根据hostname获取ip地址
|
||
def get_ip_by_hostname(self,hostname):
|
||
return socket.gethostbyname(hostname)
|
||
|
||
# 重启服务
|
||
def restart_server(self,inc):
|
||
config_dict = self.read_file(install_path + '/conf/config/run_config.conf')
|
||
|
||
master_list = config_dict.get('masters').split(',')
|
||
print master_list
|
||
master_list = list(map(lambda item : self.get_ip_by_hostname(item),master_list))
|
||
|
||
worker_list = config_dict.get('workers').split(',')
|
||
print worker_list
|
||
worker_list = list(map(lambda item: self.get_ip_by_hostname(item), worker_list))
|
||
|
||
if (self.zk.exists(masters_zk_path)):
|
||
zk_master_list = []
|
||
zk_master_nodes = self.zk.get_children(masters_zk_path)
|
||
for zk_master_node in zk_master_nodes:
|
||
zk_master_list.append(zk_master_node.split('_')[0])
|
||
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")
|
||
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)):
|
||
zk_worker_list = []
|
||
zk_worker_nodes = self.zk.get_children(workers_zk_path)
|
||
for zk_worker_node in zk_worker_nodes:
|
||
zk_worker_list.append(zk_worker_node.split('_')[0])
|
||
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")
|
||
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
|
||
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）
|
||
schedule.enter(0, 0, self.restart_server, (inc,))
|
||
schedule.run()
|
||
if __name__ == '__main__':
|
||
if (len(sys.argv) < 4):
|
||
print('please input install_path,zookeepers,masters_zk_path and worker_zk_path')
|
||
install_path = sys.argv[1]
|
||
zookeepers = sys.argv[2]
|
||
masters_zk_path = sys.argv[3]
|
||
workers_zk_path = sys.argv[4]
|
||
zkClient = ZkClient()
|
||
zkClient.main(300)
|