def test_creation_and_hydration(self):
key = random_str()
value = 10000
ts = int(time.time())
metric = Metric(key, value, ts)
self._check(metric, key, value, ts)
as_dict = {"key": key, "value": value, "timestamp": ts}
self.assertEqual(dict(metric), as_dict)
proto = metric.to_proto()
metric2 = metric.from_proto(proto)
self._check(metric2, key, value, ts)
metric3 = Metric.from_dictionary(as_dict)
self._check(metric3, key, value, ts)
def _get_metric_from_file(parent_path, metric_name):
metric_data = read_file(parent_path, metric_name)
if len(metric_data) == 0:
raise Exception("Metric '%s' is malformed. No data found." %
metric_name)
last_line = metric_data[-1]
timestamp, val = last_line.strip().split(" ")
return Metric(metric_name, float(val), int(timestamp))
def _log_metric():
request_message = _get_request_message(LogMetric())
metric = Metric(request_message.key, request_message.value, request_message.timestamp)
_get_store().log_metric(request_message.run_uuid, metric)
response_message = LogMetric.Response()
response = Response(mimetype='application/json')
response.set_data(_message_to_json(response_message))
return response
def test_weird_metric_names(self):
WEIRD_METRIC_NAME = "this is/a weird/but valid metric"
fs = FileStore(self.test_root)
run_uuid = self.exp_data[0]["runs"][0]
fs.log_metric(run_uuid, Metric(WEIRD_METRIC_NAME, 10, 1234))
metric = fs.get_metric(run_uuid, WEIRD_METRIC_NAME)
assert metric.key == WEIRD_METRIC_NAME
assert metric.value == 10
assert metric.timestamp == 1234
def from_proto(cls, proto):
run_data = cls()
# iterate proto and add metrics and params
for proto_metric in proto.metrics:
run_data._add_metric(Metric.from_proto(proto_metric))
for proto_param in proto.params:
run_data._add_param(Param.from_proto(proto_param))
return run_data
def from_proto(cls, proto):
run_data = cls()
# iterate proto and add metrics, params, and tags
for proto_metric in proto.metrics:
run_data._add_metric(Metric.from_proto(proto_metric))
for proto_param in proto.params:
run_data._add_param(Param.from_proto(proto_param))
for proto_tag in proto.tags:
run_data._add_tag(RunTag.from_proto(proto_tag))
return run_data
def _log_metric():
request_message = _get_request_message(LogMetric())
metric = Metric(request_message.key, request_message.value,
request_message.timestamp)
_get_store().log_metric(request_message.run_uuid, metric)
response_message = LogMetric.Response()
response = Response(mimetype='application/json')
response.set_data(
MessageToJson(response_message, preserving_proto_field_name=True))
return response
def report_now(self, registry=None, timestamp=None):
registry = registry or self.registry
timestamp = timestamp or int(round(self.clock.time()))
active_run = self.active_run or mlflow.active_run()
metrics = (registry or self.registry).dump_metrics()
for mkey, mdict in metrics.items():
for mname, mvalue in mdict.items():
active_run.log_metric(
Metric(f"{mkey}_{mname}", mvalue, timestamp))
def get_metric_history(self, run_uuid, metric_key):
parent_path, metric_files = self._get_run_files(run_uuid, "metric")
if metric_key not in metric_files:
raise Exception("Metric '%s' not found under run '%s'" %
(metric_key, run_uuid))
metric_data = read_file(parent_path, metric_key)
rsl = []
for pair in metric_data:
ts, val = pair.strip().split(" ")
rsl.append(Metric(metric_key, float(val), int(ts)))
return rsl
def log_metric(key, value):
"""
Logs the passed-in metric under the current run, creating a run if necessary.
:param key: Metric name (string)
:param value: Metric value (float)
"""
if not isinstance(value, numbers.Number):
print("WARNING: The metric {}={} was not logged because the value is not a number.".format(
key, value), file=sys.stderr)
return
_get_or_start_run().log_metric(Metric(key, value, int(time.time())))
def get_metric_history(self, run_uuid, metric_key):
"""
Returns all logged value for a given metric.
:param run_uuid: Unique identifier for run
:param metric_key: Metric name within the run
:return: A list of float values logged for the give metric if logged, else empty list
"""
req_body = _message_to_json(GetMetricHistory(run_uuid=run_uuid, metric_key=metric_key))
response_proto = self._call_endpoint(GetMetricHistory, req_body)
return [Metric.from_proto(metric).value for metric in response_proto.metrics]
def get_metric(self, run_uuid, metric_key):
"""
Returns the last logged value for a given metric.
:param run_uuid: Unique identifier for run
:param metric_key: Metric name within the run
:return: A single float value for the give metric if logged, else None
"""
req_body = _message_to_json(GetMetric(run_uuid=run_uuid, metric_key=metric_key))
response_proto = self._call_endpoint(GetMetric, req_body)
return Metric.from_proto(response_proto.metric)
def _create():
metrics = [
Metric(random_str(10), random_int(),
int(time.time() + random_int(-1e4, 1e4)))
for x in range(100)
] # noqa
params = [
Param(random_str(10), random_str(random_int(10, 35)))
for x in range(10)
] # noqa
rd = RunData()
for p in params:
rd.add_param(p)
for m in metrics:
rd.add_metric(m)
return rd, metrics, params
def _log_metrics(self):
"""
Helper method to log metrics into specified run.
"""
timestamp = int(time.time() * 1000)
self.client.log_batch(
self.run_id,
metrics=[
Metric(
key=_gen_log_key(key, self.dataset_name),
value=value,
timestamp=timestamp,
step=0,
) for key, value in self.metrics.items()
],
)
def _add_metric(self, metric):
if isinstance(metric, dict):
metric = Metric(metric['key'], metric['value'],
metric['timestamp'])
self._metrics.append(metric)
