10:39 a.m.
Hi,
Im currently making a script using the Python SDK to retrieve a list of VM names + their
MAC address.
I currently came up with this
17 vm = api.vms.list()
18
19
20 for item in vm:
21 hostname = item.get_name()
22 nic = api.vms.get(name=hostname).nics.list()
23 for net in nic:
24 nicname = net.mac.get_address()
25 print "%s" % hostname
26 print "%s" % nicname
I've noticed that retrieving the nic list during the iteration does a logon each time
which slows thing down dramatically.
Is there a better way to get the NICs from a list of VMs?
Regards,
Vincent
2:22 a.m.
----- Original Message -----
From: "Vincent Van der Kussen"
<vincent(a)vanderkussen.org>
To: users(a)ovirt.org
Sent: Wednesday, December 5, 2012 10:39:02 AM
Subject: [Users] Python script retrieving MACs
Hi,
Im currently making a script using the Python SDK to retrieve a list
of VM names + their MAC address.
I currently came up with this
17 vm = api.vms.list()
18
19
20 for item in vm:
21 hostname = item.get_name()
22 nic = api.vms.get(name=hostname).nics.list()
23 for net in nic:
24 nicname = net.mac.get_address()
25 print "%s" % hostname
26 print "%s" % nicname
I've noticed that retrieving the nic list during the iteration does a
logon each time which slows thing down dramatically.
Is there a better way to get the NICs from a list of VMs?
Michael P wrote in another thread :
##if you using > 3.1 backend, you should be using persistent authentication in api,
##this way you'll have to pass JSESSIONID and login will happen only on first
request.
Michael , please elaborate on that
Regards,
Vincent
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
10:08 a.m.
On 12/06/2012 02:22 AM, Eli Mesika wrote:
----- Original Message -----
> From: "Vincent Van der Kussen" <vincent(a)vanderkussen.org>
> To: users(a)ovirt.org
> Sent: Wednesday, December 5, 2012 10:39:02 AM
> Subject: [Users] Python script retrieving MACs
>
> Hi,
>
> Im currently making a script using the Python SDK to retrieve a list
> of VM names + their MAC address.
> I currently came up with this
>
> 17 vm = api.vms.list()
> 18
> 19
> 20 for item in vm:
> 21 hostname = item.get_name()
> 22 nic = api.vms.get(name=hostname).nics.list()
> 23 for net in nic:
> 24 nicname = net.mac.get_address()
> 25 print "%s" % hostname
> 26 print "%s" % nicname
>
> I've noticed that retrieving the nic list during the iteration does a
> logon each time which slows thing down dramatically.
> Is there a better way to get the NICs from a list of VMs?
Michael P wrote in another thread :
##if you using > 3.1 backend, you should be using persistent authentication in api,
##this way you'll have to pass JSESSIONID and login will happen only on first
request.
Michael , please elaborate on that
persistent authentication available since 3.1 api,
if your backend is 3.1 or higher, sdk will use it by default,
otherwise authentication happens peer request.
>
> Regards,
> Vincent
>
> _______________________________________________
> Users mailing list
> Users(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
--
Michael Pasternak
RedHat, ENG-Virtualization R&D
12:30 p.m.
On 12/06/2012 10:08 AM, Michael Pasternak wrote:
On 12/06/2012 02:22 AM, Eli Mesika wrote:
>
> ----- Original Message -----
>> From: "Vincent Van der Kussen"<vincent(a)vanderkussen.org>
>> To: users(a)ovirt.org
>> Sent: Wednesday, December 5, 2012 10:39:02 AM
>> Subject: [Users] Python script retrieving MACs
>>
>> Hi,
>>
>> Im currently making a script using the Python SDK to retrieve a list
>> of VM names + their MAC address.
>> I currently came up with this
>>
>> 17 vm = api.vms.list()
>> 18
>> 19
>> 20 for item in vm:
>> 21 hostname = item.get_name()
>> 22 nic = api.vms.get(name=hostname).nics.list()
BTW, you already
have list of vm objects so you can use item.nics.list()
instead of asking for the object again from the backend.
>> 23 for net in nic:
>> 24 nicname = net.mac.get_address()
>> 25 print "%s" % hostname
>> 26 print "%s" % nicname
You print here only one mac per
vm although you iterate over all the
vm's nics, I think that the prints should be indented under the for loop
too.
>>
>> I've noticed that retrieving the nic list during the iteration does a
>> logon each time which slows thing down dramatically.
>> Is there a better way to get the NICs from a list of VMs?
> Michael P wrote in another thread :
>
> ##if you using> 3.1 backend, you should be using persistent authentication in
api,
> ##this way you'll have to pass JSESSIONID and login will happen only on first
request.
>
> Michael , please elaborate on that
persistent authentication available since 3.1 api,
if your backend is 3.1 or higher, sdk will use it by default,
otherwise authentication happens peer request.
>> Regards,
>> Vincent
>>
>> _______________________________________________
>> Users mailing list
>> Users(a)ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users
>>
--
Thanks,
Rami Vaknin, QE @ Red Hat, TLV, IL.
4370
days inactive
4371
days old
3 comments
4 participants
participants (4)
-
Eli Mesika -
Michael Pasternak -
Rami Vaknin -
Vincent Van der Kussen