def __sevenm_metrics(self, kind, instances, metrics):
values = {}
times = {}
cmd = NaServer.NaElement("perf-object-get-instances-iter-start")
cmd.child_add_string("objectname", kind)
counters = NaServer.NaElement("counters")
for metric in metrics:
counters.child_add_string("counter", metric)
cmd.child_add(counters)
insts = NaServer.NaElement("instances")
for inst in instances:
insts.child_add_string("instance", inst)
cmd.child_add(insts)
res = self.server.invoke_elem(cmd)
if res.results_errno():
reason = res.results_reason()
msg = ("perf-object-get-instances-iter-start"
" cannot collect '%s': %s")
raise ValueError(msg % (kind, reason))
next_tag = res.child_get_string("tag")
instance_time = float(res.child_get_string("timestamp"))
counter = self.perf_max_records
while counter == self.perf_max_records:
cmd = NaServer.NaElement("perf-object-get-instances-iter-next")
cmd.child_add_string("tag", next_tag)
cmd.child_add_string("maximum", self.perf_max_records)
res = self.server.invoke_elem(cmd)
if res.results_errno():
reason = res.results_reason()
msg = ("perf-object-get-instances-iter-next"
" cannot collect '%s': %s")
raise ValueError(msg % (kind, reason))
counter = res.child_get_string("records")
partial_values, partial_times, partial_inst_t \
= self.__collect_instances(res)
# Mix them with the previous records of the same instance
# WARNING, BUG with same instance and time!!!!!!!!!
for instance, values in values.iteritems():
if instance in partial_values:
values.update(partial_values[instance])
del partial_values[instance]
values.update(partial_values)
times.update(partial_times)
cmd = NaServer.NaElement("perf-object-instance-list-info-iter-end")
cmd.child_add_string("tag", next_tag)
res = self.server.invoke_elem(cmd)
if res.results_errno():
reason = res.results_reason()
msg = ("perf-object-instance-list-info-iter-end"
" cannot collect '%s': %s")
raise ValueError(msg % (kind, reason))
return values, times, instance_time
def __clusterm_instances(self, kind, filter=''):
counter = self.perf_max_records
next_tag = ''
instances_list = []
while counter == self.perf_max_records:
cmd = NaServer.NaElement("perf-object-instance-list-info-iter")
cmd.child_add_string("objectname", kind)
if filter:
cmd.child_add_string("filter-data", filter)
if next_tag:
cmd.child_add_string("tag", next_tag)
cmd.child_add_string("max-records", self.perf_max_records)
res = self.server.invoke_elem(cmd)
if res.results_errno():
reason = res.results_reason()
msg = ("perf-object-instance-list-info-iter"
" cannot collect '%s': %s")
raise ValueError(msg % (kind, reason))
next_tag = res.child_get_string("next-tag")
counter = res.child_get_string("num-records")
attr_list = res.child_get("attributes-list")
if attr_list:
for inst in attr_list.children_get():
name = inst.child_get_string("uuid")
instances_list.append(name)
return instances_list
def get_info(self, kind):
cmd = NaServer.NaElement("perf-object-counter-list-info")
cmd.child_add_string("objectname", kind)
res = self.server.invoke_elem(cmd)
counters = {}
if res.results_errno():
reason = res.results_reason()
msg = "perf-object-counter-list-info cannot collect '%s': %s"
raise ValueError(msg % (kind, reason))
for counter in res.child_get("counters").children_get():
name = counter.child_get_string("name")
desc = counter.child_get_string("desc")
unit = ''
if counter.child_get_string("unit"):
unit = counter.child_get_string("unit")
properties = ''
if counter.child_get_string("properties"):
properties = counter.child_get_string("properties")
base = ''
if counter.child_get_string("base-counter"):
base = counter.child_get_string("base-counter")
priv = counter.child_get_string("privilege-level")
labels = []
if counter.child_get("labels"):
clabels = counter.child_get("labels")
if clabels.child_get_string("label-info"):
tlabels = clabels.child_get_string("label-info")
labels = [l.strip() for l in tlabels.split(',')]
counters[name] = (unit, properties, base, priv, desc, labels)
return counters
def _get_version(self):
cmd = NaServer.NaElement('system-get-version')
res = self.server.invoke_elem(cmd)
if res.results_errno():
raise ValueError("system-get-version error: %s" %
res.results_reason())
else:
self.clustered = False
clustered = res.child_get_string("is-clustered")
if clustered == "true":
self.clustered = True
version_tuple = res.child_get("version-tuple")
if version_tuple:
version_tuple = version_tuple.child_get("system-version-tuple")
self.generation = version_tuple.child_get_string("generation")
self.major = version_tuple.child_get_string("major")
self.minor = version_tuple.child_get_string("minor")
else:
version = res.child_get_string("version")
if version:
version_tuple = re.search(r'(\d+)\.(\d+)\.(\d+)', version)
self.generation = version_tuple.group(1)
self.major = version_tuple.group(2)
self.minor = version_tuple.group(3)
return (self.generation, self.major, self.minor)
def __clusterm_metrics(self, kind, instances, metrics):
cmd = NaServer.NaElement("perf-object-get-instances")
inst = NaServer.NaElement("instance-uuids")
for instance in instances:
inst.child_add_string("instance-uuid", instance)
cmd.child_add(inst)
cmd.child_add_string("objectname", kind)
counters = NaServer.NaElement("counters")
for metric in metrics:
counters.child_add_string("counter", metric)
cmd.child_add(counters)
res = self.server.invoke_elem(cmd)
if res.results_errno():
reason = res.results_reason()
msg = "perf-object-get-instances cannot collect '%s': %s"
raise ValueError(msg % (kind, reason))
return self.__collect_instances(res)
def __sevenm_instances(self, kind, filter=''):
instances_list = []
cmd = NaServer.NaElement("perf-object-instance-list-info-iter-start")
cmd.child_add_string("objectname", kind)
res = self.server.invoke_elem(cmd)
if res.results_errno():
reason = res.results_reason()
msg = ("perf-object-instance-list-info-iter-start"
" cannot collect '%s': %s")
raise ValueError(msg % (kind, reason))
next_tag = res.child_get_string("tag")
counter = self.perf_max_records
while counter == self.perf_max_records:
cmd = NaServer.NaElement(
"perf-object-instance-list-info-iter-next")
cmd.child_add_string("tag", next_tag)
cmd.child_add_string("maximum", self.perf_max_records)
res = self.server.invoke_elem(cmd)
if res.results_errno():
reason = res.results_reason()
msg = ("perf-object-instance-list-info-iter-next"
" cannot collect '%s': %s")
raise ValueError(msg % (kind, reason))
counter = res.child_get_string("records")
instances = res.child_get("instances")
if instances:
for inst in instances.children_get():
name = inst.child_get_string("name")
instances_list.append(name)
cmd = NaServer.NaElement("perf-object-instance-list-info-iter-end")
cmd.child_add_string("tag", next_tag)
res = self.server.invoke_elem(cmd)
if res.results_errno():
reason = res.results_reason()
msg = ("perf-object-instance-list-info-iter-end"
" cannot collect '%s': %s")
raise ValueError(msg % (kind, reason))
# filter
return instances_list
def get_objects(self):
cmd = NaServer.NaElement('perf-object-list-info')
res = self.server.invoke_elem(cmd)
objects = {}
if res.results_errno():
raise ValueError("perf-object-list-info error: %s" %
res.results_reason())
else:
for inst in res.child_get("objects").children_get():
inst_name = inst.child_get_string("name")
inst_desc = inst.child_get_string("description")
inst_priv = inst.child_get_string("privilege-level")
objects[inst_name] = (inst_desc, inst_priv)
return objects
def collect(self, device, ip, user, password):
"""
This function collects the metrics for one filer.
"""
sys.path.append(self.config['netappsdkpath'])
try:
import NaServer
except ImportError:
self.log.error("Unable to load NetApp SDK from %s" %
(self.config['netappsdkpath']))
return
# Set up the parameters
server = NaServer.NaServer(ip, 1, 3)
server.set_transport_type('HTTPS')
server.set_style('LOGIN')
server.set_admin_user(user, password)
# We're only able to query a single object at a time,
# so we'll loop over the objects.
for na_object in self.METRICS.keys():
# For easy reference later, generate a new dict for this object
LOCALMETRICS = {}
for metric in self.METRICS[na_object]:
metricname, prettyname, multiplier = metric
LOCALMETRICS[metricname] = {}
LOCALMETRICS[metricname]["prettyname"] = prettyname
LOCALMETRICS[metricname]["multiplier"] = multiplier
# Keep track of how long has passed since we checked last
CollectTime = time.time()
time_delta = None
if na_object in self.LastCollectTime.keys():
time_delta = CollectTime - self.LastCollectTime[na_object]
self.LastCollectTime[na_object] = CollectTime
self.log.debug("Collecting metric of object %s" % na_object)
query = NaServer.NaElement("perf-object-get-instances-iter-start")
query.child_add_string("objectname", na_object)
counters = NaServer.NaElement("counters")
for metric in LOCALMETRICS.keys():
counters.child_add_string("counter", metric)
query.child_add(counters)
res = server.invoke_elem(query)
if (res.results_status() == "failed"):
self.log.error("Connection to filer %s failed; %s" %
(device, res.results_reason()))
return
iter_tag = res.child_get_string("tag")
num_records = 1
max_records = 100
# For some metrics there are dependencies between metrics for
# a single object, so we'll need to collect all, so we can do
# calculations later.
raw = {}
while (num_records != 0):
query = NaServer.NaElement(
"perf-object-get-instances-iter-next")
query.child_add_string("tag", iter_tag)
query.child_add_string("maximum", max_records)
res = server.invoke_elem(query)
if (res.results_status() == "failed"):
print "Connection to filer %s failed; %s" % (
device, res.results_reason())
return
num_records = res.child_get_int("records")
if (num_records > 0):
instances_list = res.child_get("instances")
instances = instances_list.children_get()
for instance in instances:
raw_name = unicodedata.normalize(
'NFKD', instance.child_get_string("name")).encode(
'ascii', 'ignore')
# Shorten the name for disks as they are very long and
# padded with zeroes, eg:
# 5000C500:3A236B0B:00000000:00000000:00000000:...
if na_object is "disk":
non_zero_blocks = [
block for block in raw_name.split(":")
if block != "00000000"
]
raw_name = "".join(non_zero_blocks)
instance_name = re.sub(r'\W', '_', raw_name)
counters_list = instance.child_get("counters")
counters = counters_list.children_get()
for counter in counters:
metricname = unicodedata.normalize(
'NFKD',
counter.child_get_string("name")).encode(
'ascii', 'ignore')
metricvalue = counter.child_get_string("value")
# We'll need a long complete pathname to not
# confuse self.derivative
pathname = ".".join([
self.config["path_prefix"], device, na_object,
instance_name, metricname
])
raw[pathname] = int(metricvalue)
# Do the math
self.log.debug("Processing %i metrics for object %s" %
(len(raw), na_object))
# Since the derivative function both returns the derivative
# and saves a new point, we'll need to store all derivatives
# for local reference.
derivative = {}
for key in raw.keys():
derivative[key] = self.derivative(key, raw[key])
for key in raw.keys():
metricname = key.split(".")[-1]
prettyname = LOCALMETRICS[metricname]["prettyname"]
multiplier = LOCALMETRICS[metricname]["multiplier"]
if metricname in self.DROPMETRICS:
continue
elif metricname in self.DIVIDERS.keys():
self._gen_delta_depend(key, derivative, multiplier,
prettyname, device)
else:
self._gen_delta_per_sec(key, derivative[key], time_delta,
multiplier, prettyname, device)
