conn = libvirt.openReadOnly()
if conn is None:
raise Exception('Failed to open connection to the hypervisor')
for id in conn.listDomainsID():
dom = conn.lookupByID(id)
block_stats = {}
block_stats = {"devices": []}
for dev in common.domain_xml(dom).findall("devices/disk/target"):
devname = dev.get("dev")
block_stats["devices"].append(devname)
stats = dom.blockStats(devname)
block_stats[devname] = {
"rd_req": stats[0],
"rd_bytes": stats[1],
"wr_req": stats[2],
"wr_bytes": stats[3],
"errs": stats[4]
}
print json.dumps({
"timestamp": common.now(),
"nova": common.nova_metadata(dom),
"uuid": dom.UUIDString(),
"name": dom.name(),
"id": dom.ID(),
"block_stats": block_stats
})
except Exception, e:
print json.dumps({"timestamp": common.now(), "error": "%s" % e})
for dev in common.domain_xml(dom).findall("devices/disk/target"):
devname = dev.get("dev")
block_info["devices"].append(devname)
info = dom.blockInfo(devname)
block_info[devname] = {
# logical size in bytes of the image
# (how much storage the guest will see)
"capacity": info[0],
# host storage in bytes occupied by
# the image (such as highest allocated
# extent if there are no holes, similar to 'du')
"allocation": info[1],
# host physical size in bytes of the
# image container (last offset, similar to 'ls')
"physical": info[2]
}
print json.dumps(OrderedDict([
("timestamp", common.now()),
("nova", common.nova_metadata(dom)),
("uuid", dom.UUIDString()),
("name", dom.name()),
("id", dom.ID()),
("block_info", block_info)
]))
except Exception, e:
print json.dumps({"timestamp": common.now(), "error": "%s" % e})
# (how much storage the guest will see)
"capacity": info[0],
# host storage in bytes occupied by
# the image (such as highest allocated
# extent if there are no holes, similar to 'du')
"allocation": info[1],
# host physical size in bytes of the
# image container (last offset, similar to 'ls')
"physical": info[2]
}
print json.dumps({
"timestamp": common.now(),
"nova_uuid": common.nova_metadata(dom)['project']['uuid'],
"nova_name": common.nova_metadata(dom)['project']['name'],
"uuid": dom.UUIDString(),
"name": dom.name(),
"id": dom.ID(),
"vda_allocation": block_info['vda']['allocation'],
"vda_capacity": block_info['vda']['capacity'],
"vda_physical": block_info['vda']['physical'],
"hdd_allocation": block_info['hdd']['allocation'],
"hdd_capacity": block_info['hdd']['capacity'],
"hdd_physical": block_info['hdd']['physical'],
})
except Exception, e:
print json.dumps({"timestamp": common.now(), "error": "%s" % e})
