无法通过python paramiko获取远程服务器上的cpu利用率

时间:2019-02-01 06:50:40

标签: python cpu-usage paramiko

我正在尝试使用python paramiko获取远程服务器上的CPU利用率。

import paramiko
from socket import error as socket_error
import os 
try:
    ssh_remote =paramiko.SSHClient()
    ssh_remote.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    privatekeyfile = os.path.expanduser('~/.ssh/id')
    mykey = paramiko.RSAKey.from_private_key_file(privatekeyfile, password='test123')
    ssh_remote.connect('10.10.0.1', username = 'test1', pkey = mykey)
    idin, idout, iderr = ssh_remote.exec_command("ps aux | grep -i 'test' | grep -v grep | awk '{print $2}'")
    id_out = idout.read().decode().splitlines()
    id_out_1 = id_out[0]
    rein, reout, reerr = ssh_remote.exec_command("ps -p %s -o %s" %(id_out_1 ,'cpu'))
    cp = reout.read().decode().splitlines()
    print cp
except paramiko.SSHException as sshException:
    print "Unable to establish SSH connection:{0}".format(hostname)
except socket_error as socket_err:
    print "Unable to connect connection refused"

在输出以下接收

[u'CPU', u'  -']

代替

[u'%CPU', u'0.1']

不确定这是怎么回事。请对此提供帮助。

1 个答案:

答案 0 :(得分:1)

您需要%cpu而不是cpu,因此需要进行以下更改:

rein, reout, reerr = ssh_remote.exec_command("ps -p %s -o %s" %(id_out_1 ,'cpu'))

rein, reout, reerr = ssh_remote.exec_command("ps -p %s -o %s" %(id_out_1 ,'%cpu'))

这将为您提供CPU使用率百分比。