python 監測記憶體和cpu的使用率例項
阿新 • • 發佈:2020-01-09
我就廢話不多說了,直接上程式碼吧!
import paramiko import pymysql import time linux = ['192.168.0.179'] def connectHost(ip,uname='shenyuming',passwd='ajiongqqq'): ssh = paramiko.SSHClient() ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy()) ssh.connect(ip,username=uname,password=passwd,port=22) return ssh def MainCheck(): try: while True: time.sleep(1) for a in range(len(linux)): ssh = connectHost(linux[a]) # 查詢主機名稱 cmd = 'hostname' stdin,stdout,stderr = ssh.exec_command(cmd) host_name = stdout.readlines() host_name = host_name[0] # 檢視當前時間 csj = 'date +%T' stdin,stderr = ssh.exec_command(csj) curr_time = stdout.readlines() curr_time = curr_time[0] # 檢視cpu使用率,並將資訊寫入到資料庫中(取三次平均值) cpu = "vmstat 1 3|sed '1d'|sed '1d'|awk '{print $15}'" stdin,stderr = ssh.exec_command(cpu) cpu = stdout.readlines() cpu_usage = str(round((100 - (int(cpu[0]) + int(cpu[1]) + int(cpu[2])) / 3),2)) + '%' # 檢視記憶體使用率,並將資訊寫入到資料庫中 mem = "cat /proc/meminfo|sed -n '1,4p'|awk '{print $2}'" stdin,stderr = ssh.exec_command(mem) mem = stdout.readlines() mem_total = round(int(mem[0]) / 1024) mem_total_free = round(int(mem[1]) / 1024) + round(int(mem[2]) / 1024) + round(int(mem[3]) / 1024) mem_usage = str(round(((mem_total - mem_total_free) / mem_total) * 100,2)) + "%" sql = "insert into memory_and_cpu values('%s','%s','%s')" % ( host_name,curr_time,cpu_usage,mem_usage) db = connectDB() sqlDML(sql,db) except: print("連線伺服器 %s 異常" % (linux[a])) def connectDB(dbname='test11'): if dbname == 'test11': db = pymysql.connect("localhost","root","shen123","test11") return db def sqlDML(sql,db): cr = db.cursor() cr.execute(sql) db.commit() cr.close() # if __name__ == '__main__': MainCheck()
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