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 = ""true"
href="https://host_ip">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
