def save_sample(self, metric, value, timestamp=None, tags=None, hostname=None, device_name=None): """Save a simple sample, evict old values if needed """ from util import cast_metric_val if timestamp is None: timestamp = time.time() if metric not in self._sample_store: raise CheckException( "Saving a sample for an undefined metric: %s" % metric) try: value = cast_metric_val(value) except ValueError as ve: raise NaN(ve) # Sort and validate tags if tags is not None: if type(tags) not in [type([]), type(())]: raise CheckException("Tags must be a list or tuple of strings") else: tags = tuple(sorted(tags)) # Data eviction rules key = (tags, device_name) if self.is_gauge(metric): self._sample_store[metric][key] = ((timestamp, value, hostname, device_name), ) elif self.is_counter(metric): if self._sample_store[metric].get(key) is None: self._sample_store[metric][key] = [(timestamp, value, hostname, device_name)] else: self._sample_store[metric][key] = self._sample_store[metric][ key][-1:] + [(timestamp, value, hostname, device_name)] else: raise CheckException( "%s must be either gauge or counter, skipping sample at %s" % (metric, time.ctime(timestamp))) if self.is_gauge(metric): # store[metric][tags] = (ts, val) - only 1 value allowed assert len(self._sample_store[metric] [key]) == 1, self._sample_store[metric] elif self.is_counter(metric): assert len(self._sample_store[metric][key]) in ( 1, 2), self._sample_store[metric]
def save_sample(self, metric, value, timestamp=None, tags=None, hostname=None, device_name=None): """Save a simple sample, evict old values if needed """ from util import cast_metric_val if timestamp is None: timestamp = time.time() if metric not in self._sample_store: raise CheckException("Saving a sample for an undefined metric: %s" % metric) try: value = cast_metric_val(value) except ValueError, ve: raise NaN(ve)
def save_sample(self, metric, value, timestamp=None, tags=None, hostname=None, device_name=None): """Save a simple sample, evict old values if needed """ from util import cast_metric_val if timestamp is None: timestamp = time.time() if metric not in self._sample_store: raise CheckException("Saving a sample for an undefined metric: %s" % metric) try: value = cast_metric_val(value) except ValueError, ve: raise NaN(ve)
def save_sample(self, metric, value, timestamp=None, tags=None, hostname=None, device_name=None): """Save a simple sample, evict old values if needed """ from util import cast_metric_val if timestamp is None: timestamp = time.time() if metric not in self._sample_store: raise CheckException("Saving a sample for an undefined metric: %s" % metric) try: value = cast_metric_val(value) except ValueError as ve: raise NaN(ve) # Sort and validate tags if tags is not None: if type(tags) not in [type([]), type(())]: raise CheckException("Tags must be a list or tuple of strings") else: tags = tuple(sorted(tags)) # Data eviction rules key = (tags, device_name) if self.is_gauge(metric): self._sample_store[metric][key] = ((timestamp, value, hostname, device_name),) elif self.is_counter(metric): if self._sample_store[metric].get(key) is None: self._sample_store[metric][key] = [(timestamp, value, hostname, device_name)] else: self._sample_store[metric][key] = self._sample_store[metric][key][-1:] + [ (timestamp, value, hostname, device_name) ] else: raise CheckException( "%s must be either gauge or counter, skipping sample at %s" % (metric, time.ctime(timestamp)) ) if self.is_gauge(metric): # store[metric][tags] = (ts, val) - only 1 value allowed assert len(self._sample_store[metric][key]) == 1, self._sample_store[metric] elif self.is_counter(metric): assert len(self._sample_store[metric][key]) in (1, 2), self._sample_store[metric]