Re: cloudstack 4.4.2 - VM network rate limit - has no effect

bob Fri, 27 Mar 2015 09:54:43 -0700

Compiled against library: libvirt 0.10.2
Using library: libvirt 0.10.2
Using API: QEMU 0.10.2
Running hypervisor: QEMU 0.12.1


$ virsh dumpxml i-VM-XXXX
output:

<domain type='kvm' id='143'>
  <name>i-2-123-VM</name>
  <uuid>7555205e-c18d-48c7-bfdf-3a7461e637ee</uuid>
  <description>CentOS 5.5 (64-bit)</description>
  <memory unit='KiB'>524288</memory>
  <currentMemory unit='KiB'>524288</currentMemory>
  <vcpu placement='static'>1</vcpu>
  <cputune>
    <shares>500</shares>
  </cputune>
  <os>
    <type arch='x86_64' machine='rhel6.6.0'>hvm</type>
    <boot dev='cdrom'/>
    <boot dev='hd'/>
  </os>
  <features>
    <acpi/>
    <apic/>
    <pae/>
  </features>
  <cpu>
  </cpu>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>destroy</on_crash>
  <devices>
    <emulator>/usr/libexec/qemu-kvm</emulator>
    <disk type='file' device='disk'>
      <driver name='qemu' type='qcow2' cache='none'/>

<sourcefile='/mnt/dfbbd8a2-2c79-3183-8149-25899d9b1191/27473b1d-c29e-44af-b5d1-0452c1104870'/>

      <target dev='vda' bus='virtio'/>
      <alias name='virtio-disk0'/>

<address type='pci' domain='0x0000' bus='0x00' slot='0x04'function='0x0'/>

    </disk>
    <disk type='file' device='cdrom'>
      <driver name='qemu' type='raw' cache='none'/>
      <target dev='hdc' bus='ide'/>
      <readonly/>
      <alias name='ide0-1-0'/>
      <address type='drive' controller='0' bus='1' target='0' unit='0'/>
    </disk>
    <controller type='usb' index='0'>
      <alias name='usb0'/>

<address type='pci' domain='0x0000' bus='0x00' slot='0x01'function='0x2'/>

    </controller>
    <controller type='ide' index='0'>
      <alias name='ide0'/>

<address type='pci' domain='0x0000' bus='0x00' slot='0x01'function='0x1'/>

    </controller>
    <interface type='bridge'>
      <mac address='02:00:42:f4:00:14'/>
      <source bridge='breth0-537'/>
      <bandwidth>
        <inbound average='25600' peak='25600'/>
        <outbound average='25600' peak='25600'/>
      </bandwidth>
      <target dev='vnet13'/>
      <model type='virtio'/>
      <alias name='net0'/>

<address type='pci' domain='0x0000' bus='0x00' slot='0x03'function='0x0'/>

    </interface>
    <serial type='pty'>
      <source path='/dev/pts/6'/>
      <target port='0'/>
      <alias name='serial0'/>
    </serial>
    <console type='pty' tty='/dev/pts/6'>
      <source path='/dev/pts/6'/>
      <target type='serial' port='0'/>
      <alias name='serial0'/>
    </console>
    <input type='tablet' bus='usb'>
      <alias name='input0'/>
    </input>
    <input type='mouse' bus='ps2'/>
    <graphics type='vnc' port='5905' autoport='yes' listen='x.x.x.x'>
      <listen type='address' address='x.x.x.x'/>
    </graphics>
    <video>
      <model type='cirrus' vram='9216' heads='1'/>
      <alias name='video0'/>

<address type='pci' domain='0x0000' bus='0x00' slot='0x02'function='0x0'/>

    </video>
    <memballoon model='none'>
      <alias name='balloon0'/>
    </memballoon>
  </devices>
</domain>

Here is the censored version of my CURL URL request:
http://serverip:8080/client/api?account=bob&apikey=MYAPIKEY...&command=deployVirtualMachine&details[0].cpuNumber=1&details[0].cpuSpeed=500&details[0].memory=512&details[0].networkrate=1&displayname=testing&displayvm=true&domainid=a7f31400-9c32-11e4-82e0-50e549354a3e&expires=2015-03-27T12%3A18%3A49-0400&hypervisor=KVM&name=testing&networkids=a2353a3b-073e-47d6-8090-3032432e3077&response=json&rootdisksize=50&serviceofferingid=4cb3c5a5-cc02-4450-a026-f538dc575b5e&signatureVersion=3&templateid=a84da8b6-9c32-11e4-82e0-50e549354a3e&zoneid=8c95e4d9-c49e-4275-8c35-2af258a27898&signature=SIGNATURE...

On 03/26/2015 04:43 PM, Wido den Hollander wrote:

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Hash: SHA1



On 03/26/2015 06:12 PM, bob wrote:

Hello, I am using a PHP API to cloudstack 4.4.2 - When I make the
call to deployVirtualMachine and attempt to pass the parm
details[0].networkrate = 1 it does not rate limit the network to
1MB. What am I doing wrong?

Can you check the XML definition of the guest on the hypervisor?

$ virsh dumpxml i-VM-XXXX

In the network section you should see a network throttle setting.

If not, it might be that your Qemu or libvirt is to old. I'm not sure
what versions you need.

It is using the default value from Global Settings:
vm.network.throttling.rate and ignores my VM compute service
offering rate. How do I force it to use the rate defined by my api
call to deployVirtualMachine?

Here is my PHP code: //... $displayVM = "true"; // an optional
field, whether to the display the vm to the end user or not.
$hypervisor = "KVM"; //the hypervisor on which to deploy the
virtual machine

$vars = array( // Required by API call: 'serviceofferingid' =>
CUSTOM_COMPUTE_OFFERING, 'templateid'=>$templateId,
'zoneid'=>ZONE_ID, // Optional but useful:
'details[0].networkrate'=>1, // Network Throttling of 1MB/s not
working here... //            'networkrate'=>1,
'account'=>$account, 'displayname'=>$displayName,
'displayvm'=>$displayVM, 'domainid'=>$domainid, //ROOT_DOMAIN_ID,
'hypervisor'=>$hypervisor, 'name'=>$name,
'networkids'=>NETWORK_ID, ); //
https://github.com/jasonhancock/cloudstack-api-extension //...
$deploy = $cloudstack->deployVirtualMachine($vars); // does curl
request...

Note: It will create the VM and runs fine with no errors
generated... However, when I download a 10 MB test file it will get
10MB/s download, and does not limit it to 1MB/s. Also, when I use
the cloudstack interface to look at the Instance Details, I do not
see any rate limit set.

Re: cloudstack 4.4.2 - VM network rate limit - has no effect

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