Python's KVM virtual machine status value monitoring

Python Gets the KVM virtual machine status value

Test the code, which contains only basic information, all of which are obtained through the Libvirt API.

Import Libvirt

Import Memcache

Import OS

Import time

From Xml.etree import ElementTree as ET

MC = Memcache. Client ([' 192.168.0.112:11211 '])

While True:

conn = Libvirt.open (' Qemu:///system ')

Dom = Conn.listdomainsid ()

For I in DOM:

vmm_id = Conn.lookupbyid (i)

Vmm_name = Vmm_id.name ()

If "Wrksp" in Vmm_name:

Try

# vmm_namevmm_name_id = Vmm_name.split ('-') [1]

Vmm_id_str = str (vmm_name)

Vmmid = Vmm_id_str.split ('-') [1]

Print Vmmid

Vmm_dom_xml = vmm_id. Xmldesc (0)

Vmm_xml_name = Vmm_id_str + '. ' + ' xml '

Vmm_xml_path = '/tmp/' + vmm_xml_name

Print Vmm_xml_path

If Os.path.exists (Vmm_xml_path):

Pass

else:

Os.mknod (Vmm_xml_path)

Xml_open = open (Vmm_xml_path, ' W ')

For lines in Vmm_dom_xml:

Xml_open.write (lines)

Xml_open.close ()

Vmm_xml_open = Et.parse (Vmm_xml_path)

Path_list=[]

Path = Vmm_xml_open.findall ('//source ')

For I in Path:

File1 = I.attrib

Filename=file1.get (' file ')

If filename:

Path_list.append (filename)

# Print Path_list

Interface_list = []

interface = Vmm_xml_open.findall ('//target ')

For J in Interface:

Interface_network = J.attrib

Dev1 = Interface_network.get (' dev ')

Dev3 = ' vnet '

Dev2 = str (DEV1)

If Dev3 in Dev2:

Interface_list.append (DEV1)

# Print Interface_list

TOTALRD = vmmid + ' rd '

Totalrd_byte = 0

TOTALWR = Vmmid + ' WR '

Totalwr_byte = 0

Totalrx = vmmid + ' Rx '

Totalrx_byte = 0

Totaltx = vmmid + ' TX '

Totaltx_byte = 0

TOTALRP = Vmmid + ' RP '

Totalrx_packet = 0

TOTALTP = vmmid + ' TP '

Totaltx_packet = 0

For image_file in Path_list:

# print Image_file

# size = Vmm_id.blockinfo (image_file,0)

Block_status = Vmm_id.blockstatsflags (image_file,0)

Totalrd_bytetotalrd_byte = totalrd_byte + block_status[' rd_bytes ']

Totalwr_bytetotalwr_byte = totalwr_byte + block_status[' wr_bytes ']

Print Totalrd_byte

Print Totalwr_byte

# Print Totalwr_byte

For Interfaceinfo_path in Interface_list:

Interfaceinfo = Vmm_id.interfacestats (Interfaceinfo_path)

Totalrx_bytetotalrx_byte = Totalrx_byte + interfaceinfo[0]

Totalrx_packettotalrx_packet = Totalrx_packet + interfaceinfo[1]

Totaltx_bytetotaltx_byte = Totaltx_byte + interfaceinfo[4]

Totaltx_packettotaltx_packet = Totaltx_packet + interfaceinfo[5]

Totalmem = vmmid + ' actual '

Totalmem_data = 0

Rssmem = vmmid + ' RSS '

Rssmem_data = 0

Mem_status = Vmm_id.memorystats ()

Totalmem_data = mem_status[' actual ']

Rssmem_data = mem_status[' rss ')

# Print Totalmem_data

# Print Rssmem_data

TOTALCPU = vmmid + ' CPU '

Totalcpu_usage = 0

Cpu_time = Vmm_id.info () [4]

timetime1 = Time.time ()

Time.sleep (3)

Timetime2 = Time.time ()

Cpu_new_time = Vmm_id.info () [4]

totalcpu_usage = Int (((cpu_new_time-cpu_time)/((time2-time1) *10000000) *100)

Print Totalcpu_usage

Mc.set (' Centosliran ', ' 1234 ', 20)

Mc.set (' Centos_clusterliran ', ' 345 ', 20)

Mc.set_multi ({TOTALRD:TOTALRD_BYTE,TOTALWR:TOTALWR_BYTE,TOTALRX:TOTALRX_BYTE,TOTALTX:TOTALTX_BYTE,TOTALRP: TOTALRX_PACKET,TOTALTP:TOTALTX_PACKET,TOTALMEM:TOTALMEM_DATA,RSSMEM:RSSMEM_DATA,TOTALCPU:TOTALCPU_USAGE},60)

#value = Mc.get (' key ')

# Print Value

Except

Pass

This article is from the "Target: India" blog, please be sure to keep this source http://shunzi115.blog.51cto.com/5184443/1826170

Python's KVM virtual machine status value monitoring