[Xen-API] RE: Problems in extracting VIF metrics

["Sane, Abhijeet" <Abhijeet_Sane@xxxxxxx>]

I ran the sample program you have given . But it takes long time to return me 
the data sets.

real    0m3.137s
user    0m2.580s
sys     0m0.140s



I have a question whether this request going from the unix domain local socket 
on the host or  going from HTTP/ tcp.
Other is there some API implemented for Python for extracting the metrics in a 
simpler manner.
All I want to read is the VIF read/ write data.


Please guide.

Abhijeet


-----Original Message-----
From: Jonathan Ludlam [mailto:Jonathan.Ludlam@xxxxxxxxxxxxx] 
Sent: Friday, March 05, 2010 5:48 PM
To: Sane, Abhijeet
Cc: xen-api@xxxxxxxxxxxxxxxxxxx; Goncalo Gomes
Subject: Re: Problems in extracting VIF metrics

Hi Abhijeet,

As Alberto mentioned, you should be using the RRD interface rather than looking 
at the VIF metrics. There's documentation about that
on the wiki:

http://wiki.xensource.com/xenwiki/XAPI_RRDs

Jon

On 5 Mar 2010, at 11:20, Sane, Abhijeet wrote:

> Hi ,
> 
> I am trying to extract VIF metrics data of all the VMs on a Citrix Xen host.
> I wrote the code as follows to iterate the VIF sets in all VMs and from the 
> VIF record of each VIF get the VIF metrics.
> The VIF metrics like I/O read / write rates are not available.
> 
> Please guide whether I am doing something wrong.
> 
> 
>       session = XenAPI.xapi_local(
>       session.xenapi.login_with_password("root","")
>       all = session.xenapi.VM.get_all()
>        try:
> 
>                for vm in all:
>                        try:
>                                record = session.xenapi.VM.get_record(vm)
>                                if  not record["is_control_domain"] and  not 
> record["is_a_template"] and record["resident_on"]
> :
>                                        domid = record["domid"]
>                                        name = record["name_label"]
>                                        vif_set = 
> session.xenapi.VM.get_VIFs(vm)
>                                        for vif in vif_set:
>                                                               vif_metrics = 
> session.xenapi.VIF.get_metrics(vif)
>                                                vif_rec = 
> session.xenapi.VIF.get_record(vif)
>                                                mac_addr = vif_rec["MAC"]
>                                                metrc =  
> session.xenapi.VIF_metrics.get_record(vif_rec["metrics"])
>                                                               # I have 
> removed the code to extract io_read and io_write at this point of time .
>                                        loca_str =  '%s,%s,%s,%s,%s\n' % 
> (domid , name , mac_addr ,io_read ,io_write)
>                                        csv_string = csv_string + loca_str
> 
>                                domid = ""
>                                name = ""
>                                mac_addr = ""
>                                io_read = ""
>                                io_write = ""
> 
>                        except Exception, e:
>                                print "Exception 1",e
>                                loca_str =  '%s,%s,%s,%s,%s\n' % (domid , name 
> , mac_addr ,io_read ,io_write)
>                                csv_string = csv_string + loca_str
> 
>        except Exception ,e:
>               print "Exception 2",e
>            loca_str =  '%s,%s,%s,%s,%s\n' % (domid , name , mac_addr ,io_read 
> ,io_write)
>            csv_string = csv_string + loca_str
> 
> 
> 
> 
> 
> Program output is as follows
> -------------------------------
> 
> Exception 1 ['HANDLE_INVALID', 'VIF_metrics', 
> 'OpaqueRef:96f906d4-7826-97cc-c85e-9073a9271b02']
> Exception 1 ['HANDLE_INVALID', 'VIF_metrics', 
> 'OpaqueRef:6b85fae4-3e72-5f7a-7dab-2765ca9fb659']
> Exception 1 ['HANDLE_INVALID', 'VIF_metrics', 
> 'OpaqueRef:754f4f2e-566c-945b-7e60-479c8b19abde']
> Exception 1 ['HANDLE_INVALID', 'VIF_metrics', 
> 'OpaqueRef:fab22cb7-8cee-857f-ad11-77eb7a331717']
> Exception 1 ['HANDLE_INVALID', 'VIF_metrics', 
> 'OpaqueRef:80c3d61b-802f-a4a2-4bd7-dca9c7069766']
> Exception 1 ['HANDLE_INVALID', 'VIF_metrics', 
> 'OpaqueRef:09cd33b9-f1d3-f37c-37df-1e48ed029785']
> Exception 1 ['HANDLE_INVALID', 'VIF_metrics', 
> 'OpaqueRef:f8d0bc81-a695-a471-ac49-e70b2e23da99']
> Exception 1 ['HANDLE_INVALID', 'VIF_metrics', 
> 'OpaqueRef:7583302f-0e7b-8cf3-d1b3-4f661fad30cd']
> Exception 1 ['HANDLE_INVALID', 'VIF_metrics', 
> 'OpaqueRef:29fd1bbf-be28-5481-361d-639c3fcc79a2']
> Exception 1 ['HANDLE_INVALID', 'VIF_metrics', 
> 'OpaqueRef:bac40158-2bbe-7b19-fb9f-8d6435599f12']
> Exception 1 ['HANDLE_INVALID', 'VIF_metrics', 
> 'OpaqueRef:82db2114-6376-43ad-2f06-255841a1a3aa']
> 2,xen-w2k3-v4,de:3a:0c:0e:b0:b2,,
> 1861,xen-w2k3-v7,16:20:b6:0b:05:5c,,
> 1866,win2k8x64,ee:4c:51:d4:d9:3f,,
> 1864,xen-w2k3-v5,46:cf:2f:59:99:4d,,
> 1863,xen-w2k3-v6,62:b6:09:53:aa:f4,,
> 1867,xen-win2k-v3,8a:a7:b9:31:9e:42,,
> 1,xen-winxp-v2,6e:19:cc:4c:73:9f,,
> 4,xen-vm1,ea:6c:34:15:62:6f,,
> 3,xen-vm2,12:4f:f3:2e:62:89,,
> 2,RHEL_5.3_V11,a6:6d:78:97:ee:d3,,
> 1,xen-rlnx53-v1,2a:f9:c4:18:3e:40,,
> 
> 
> 
> 
> 
> 
> Regards
> Abhijeet
> 


_______________________________________________
xen-api mailing list
xen-api@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/mailman/listinfo/xen-api