def main(filename):
fp = open(filename, 'r')
data = json.load(fp)
fp.close()
detector_data = data[0]['datapoints']
timeseries = [t[0] for t in detector_data]
SpikeDetector.convert_null_values(timeseries)
timestamps = [t[1] for t in detector_data]
orig_series = timeseries[:]
orig_stamps = timestamps[:]
res = DETECTOR.detect_anomalies(timeseries, timestamps)
plot_data(filename, (orig_stamps, orig_series), (timestamps, timeseries), res)
def plot_data(title, original_data, processed_data, results, show_=True):
"""Plots results for timeseries"""
mean = numpy.mean(SpikeDetector._get_local_maxima(original_data[1]))
r_t, r_d = [], []
for t, v in results:
r_t.append(t)
r_d.append(v)
start = original_data[0][0]
end = original_data[0][-1]
figure(title)
plot(processed_data[0], processed_data[1], r_t, r_d, "rs",
original_data[0], original_data[1], "g", [start, end], [mean, mean],
"r")
if show_:
show()
def plot_data(title, original_data, processed_data, results, show_ = True):
"""Plots results for timeseries"""
mean = numpy.mean(SpikeDetector._get_local_maxima(original_data[1]))
r_t, r_d = [], []
for t, v in results:
r_t.append(t)
r_d.append(v)
start = original_data[0][0]
end = original_data[0][-1]
figure(title)
plot(processed_data[0], processed_data[1],
r_t, r_d, "rs",
original_data[0], original_data[1], "g",
[start, end], [mean, mean], "r")
if show_:
show()
import sys
from argparse import ArgumentParser, ArgumentDefaultsHelpFormatter
from detector import SpikeDetector
DESCRIPTION = "Generates CSV report with spikes found on Graphite hosts"
# Sleep value bethween requests to same host
DEFAULT_SLEEP_VAL = 1
# Limit of requests per host
DEFAULT_HOST_LIMIT = 500
# Output file
DEFAULT_OUTPUT_FILE = None
# Detector class
DETECTOR = SpikeDetector()
def get_host_targets(host_string, pattern):
"""Returns targets that match pattern from a graphite host"""
targets = []
try:
response = requests.get('http://%s/metrics/index.json' % host_string)
targets = json.loads(response.text)
targets = [t for t in targets if fnmatch.fnmatch(t, pattern)]
except Exception as e:
print 'Exception occured while getting host target: %s' % e
finally:
