def fetch(self, startTime, endTime):
data = whisper.fetch(self.fs_path, startTime, endTime)
if not data:
return None
time_info, values = data
(start, end, step) = time_info
# Merge in data from carbon's cache
try:
cached_datapoints = CarbonLink.query(self.real_metric_path)
except:
log.exception("Failed CarbonLink query '%s'" %
self.real_metric_path)
cached_datapoints = []
for (timestamp, value) in cached_datapoints:
interval = timestamp - (timestamp % step)
try:
i = int(interval - start) / step
values[i] = value
except:
pass
return (time_info, values)
def fetch(self, startTime, endTime):
data = self.ceres_node.read(startTime, endTime)
time_info = (data.startTime, data.endTime, data.timeStep)
values = list(data.values)
# Merge in data from carbon's cache
try:
cached_datapoints = CarbonLink.query(self.real_metric_path)
except:
log.exception("Failed CarbonLink query '%s'" %
self.real_metric_path)
cached_datapoints = []
for (timestamp, value) in cached_datapoints:
interval = timestamp - (timestamp % data.timeStep)
try:
i = int(interval - data.startTime) / data.timeStep
values[i] = value
except:
pass
return (time_info, values)
