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。
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'))
到
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。