Hi all,
I build a pool includes 3 hosts : vGate7, vGate8 and vGate9. vGate9 is the
master, others are slaves.
I build a page to show the host and vm performing
metrics(e.g.cpu_utilization) on it. It works fine for the mater
(vGate9).But it cannot get the slave performing metrics.
As follows in picture 1 :
In python, I use the following codes to get the CPU Usage:
import XenAPI
url = "https://host_ip";
username = "hostname"
password = "self_password"
session = XenAPI.session(url)
session.xenapi.login_with_password(username,password)
cpu_usage =
session.xenapi.host.query_data_source("OpaqueRef:35ad218e-09e2-4117-e93d-0de371265448"
, 'cpu_avg')
# OpaqueRef:35ad218e-09e2-4117-e93d-0de371265448 is vGate7
(slave),
# and it will show XenAPI.Failure:*['HOST_OFFLINE']*
I attempt to make an API call to a slave (even someting trivial like
pool.get_all()),I get the *['HOST_IS_SLAVE'] *exception,along with the
master's IP address.
The main problem is to get 3 hosts real-time performing metrics and to show
them on the same page.
Is there any workaround to solve this problem?
The attachment is picture1, incase you cannot see it in the message.
Thank you in advance!
Thanks and Regards,
Will
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