Re: [Users] Rest-api to fetch the hosts details ( active vm's , CPU , Physical memory etc.)

Hi ..thanks for continuous help :) I have a query is their any way we can check how much Cores remaining in a cluster in Rhev-m before provisioning a VM ? coz after creating 5-10 VM's in a cluster if we create new VM then it shows exception like Cluster doesnt contains cores! Thanks . Romil On Tue, Feb 19, 2013 at 3:56 PM, Michael Pasternak <mpastern(a)redhat.com <mailto:mpastern@redhat.com>> wrote: Hi Romil, On 02/19/2013 11:22 AM, Romil Gupta wrote: > Hi Michael , > > > Thanks for ur continuous help. I have one more query here .... > > I want to fetch the host elements like .. > Type > address > status > No. of CPUs > cpu->type > cpu -> name->topology->cores->sockets > memory > summary > version > > Is is the correct way of doing to get these details? > > hosts=api.hosts.list() > for host in hosts: > type=api.hosts.get(host.id <http://host.id> <http://host.id>).type > address=api.hosts.get(host.id <http://host.id> <http://host.id>).address no, please use getter methods instead as they're encapsulating attributes that may be called differently in python, for instance 'type' attribute in python renamed to 'type_' cause 'type' is preserved name. you can see all available get_X() methods by running code bellow: #> print [token for token in type(host.superclass).__dict__.keys() if token.startswith('get_')] > > I got some exception : > address=api.hosts.get(host.id <http://host.id> <http://host.id>).get_address() > AttributeError: 'NoneType' object has no attribute 'get_address' this can only happen if your host lookup has failed. > > > Please suggest me the correct way of doing it ....if have referred > https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Virtual... > > Regards, > Romil > > > > > > > On Wed, Jan 30, 2013 at 6:50 PM, Michael Pasternak <mpastern(a)redhat.com <mailto:mpastern@redhat.com> <mailto:mpastern@redhat.com <mailto:mpastern@redhat.com>>> wrote: > > On 01/30/2013 03:09 PM, Romil Gupta wrote: > > thanks for all your guidance , now I m able to fetch the details of a host using > > the below script : > > > > hosts=api.hosts.list() > > for host in hosts: > > print "host name--> %s id--->> %s \n"%(host.name <http://host.name> <http://host.name> <http://host.name> , host.id <http://host.id> <http://host.id> <http://host.id>) > > clusterid=api.hosts.get(host.name <http://host.name> <http://host.name> <http://host.name>).cluster.id <http://cluster.id> <http://cluster.id> <http://cluster.id> > > print clusterid > > > > hostname=api.hosts.get(host.name <http://host.name> <http://host.name> <http://host.name>) > > statistic=hostname.statistics.list() > > i=0 > > while i < 14: > > print statistic[i].name > > print statistic[i].description > > print statistic[i].unit > > print statistic[i].values.value[0].datum > > i=i+1; > > > > > > summary=api.get_summary() > > print summary > > > > How I can print the summary , its only return the Object?? > > this is summary object structure: > > <summary> > <vms> > <total></total> > <active></active> > </vms> > <hosts> > <total></total> > <active></active> > </hosts> > <users> > <total></total> > <active></active> > </users> > <storage_domains> > <total></total> > <active></active> > </storage_domains> > </summary> > > you can access properties directly, like this: > summary.hosts.active > > > > > Thanks, > > Romil > > > > > > On Wed, Jan 30, 2013 at 4:52 PM, Michael Pasternak <mpastern(a)redhat.com <mailto:mpastern@redhat.com> <mailto:mpastern@redhat.com <mailto:mpastern@redhat.com>> <mailto:mpastern@redhat.com <mailto:mpastern@redhat.com> <mailto:mpastern@redhat.com <mailto:mpastern@redhat.com>>>> wrote: > > > > > > Romil, > > > > On 01/30/2013 12:18 PM, Romil Gupta wrote: > > > Hi, > > > > > > Is this is a right way to get it ?? > > > > > > statistics=params.Host(host.name <http://host.name> <http://host.name> <http://host.name> <http://host.name>).get_statistic() > > > > 1. first you need to fetch the host to see it's statistics (by doing params.Host(...) you creating > > host parameters holder which is needed for adding new host to the system) > > > > 2. get_x() getters used to access object attributes, while collections are exposed as properties, do > > > > 1. myhost = api.hosts.get(name="xxx") > > 2. myhost.statistics.list() > > 3. loop over returned collection of statistics to find what you're looking for > > > > - note, statistic objects are complex types, you can look for data at: > > > > statistics[i].unit // the unit of the holder data > > statistics[i].values.value[0].datum // actual data > > > > > print statistics > > > > > > summary=params.Host(host.name <http://host.name> <http://host.name> <http://host.name> <http://host.name>).get_summary() > > > > summary() is an api method, do: > > > > 1. api = API(url='', username='', password='') > > 2. api.get_summary() > > > > > > > print summary > > > > > > > > > Output is : none > > > > > > Thanks > > > Romil > > > > > > > > > On Wed, Jan 30, 2013 at 2:04 PM, Michael Pasternak <mpastern(a)redhat.com <mailto:mpastern@redhat.com> <mailto:mpastern@redhat.com <mailto:mpastern@redhat.com>> <mailto:mpastern@redhat.com <mailto:mpastern@redhat.com> <mailto:mpastern@redhat.com <mailto:mpastern@redhat.com>>> > <mailto:mpastern@redhat.com <mailto:mpastern@redhat.com> <mailto:mpastern@redhat.com <mailto:mpastern@redhat.com>> <mailto:mpastern@redhat.com <mailto:mpastern@redhat.com> <mailto:mpastern@redhat.com <mailto:mpastern@redhat.com>>>>> wrote: > > > > > > > > > Hi Romil, > > > > > > On 01/30/2013 10:17 AM, Romil Gupta wrote: > > > > Hi all , > > > > > > > > how I can get the hosts details like Active VM's , > > > > > > host doesn't have running vms attribute, instead you > > > can see in the guest on which host it's running, > > > > > > general system summary you can see at api.get_summary() > > > > > > Number of CPU's , CPU name , CPU type , > > > > > > these are host attributes > > > > > > Physical Memory (used , free ) , swap size and other parameters > > > > > > these are host.statistics attributes > > > > > > > using ovirt-engine-sdk-3.2.0.5-1. > > > > > > > > > > > > > > > > Regards, > > > > Romil > > > > > > > > -- > > > > I don't wish to be everything to everyone, but I would like to be something to someone. > > > > > > > > > -- > > > > > > Michael Pasternak > > > RedHat, ENG-Virtualization R&D > > > > > > > > > > > > > > > -- > > > I don't wish to be everything to everyone, but I would like to be something to someone. > > > > > > -- > > > > Michael Pasternak > > RedHat, ENG-Virtualization R&D > > > > > > > > > > -- > > I don't wish to be everything to everyone, but I would like to be something to someone. > > > -- > > Michael Pasternak > RedHat, ENG-Virtualization R&D > > > > > -- > I don't wish to be everything to everyone, but I would like to be something to someone. -- Michael Pasternak RedHat, ENG-Virtualization R&D -- I don't wish to be everything to everyone, but I would like to be something to someone.