def is_deviation_ok(dist, allowed_deviation, k):
web_interactions = WebInteractions()
if dist <= (web_interactions.get_probability(k) + allowed_deviation) and dist >= (
web_interactions.get_probability(k) - allowed_deviation
):
return "yes"
return "no"
def get_actual_deviation(dist, k):
web_interactions = WebInteractions()
actual_deviation = dist - web_interactions.get_probability(k)
r = "< %.3f" % abs(actual_deviation)
if float(actual_deviation) > 0:
r = "> %.3f" % actual_deviation
return r
def get_actual_deviation(dist, k):
web_interactions = WebInteractions()
actual_deviation = dist-web_interactions.get_probability(k)
r = "< %.3f" % abs(actual_deviation)
if float(actual_deviation) > 0:
r = "> %.3f" % actual_deviation
return r
def check(file_path):
output = ""
urls = {}
unsuccessfull = 0
all_requests = 0
fp = open(file_path)
for line in fp:
converters = Converters()
try:
timestamp, estimated_time, operation, response_code, _, _, _ = line.split(",")
url = converters.url_converter(operation)
if url != None and max_time.has_key(url):
all_requests += 1
if not urls.has_key(url):
urls[url] = {}
urls[url]["times"] = []
urls[url]["times"].append([estimated_time, response_code])
if response_code != "200":
unsuccessfull += 1
except Exception as e:
output += "Exception occured\n"
output += e.message + "\n"
pass
dist_sum = 0
web_interactions = WebInteractions()
output += "%-40s %s %-20s %s %-20s %s %-25s %s %-20s %s %-20s %s %-20s %s %-20s %s %-20s\n" % (
"operation",
"|",
"status",
"|",
"# all request",
"|",
"# successfull requests",
"|",
"% of successfull",
"|",
"% of operation",
"|",
"allowed deviation",
"|",
"actual deviation",
"|",
"deviation ok?",
)
separator = "".join(["-" for _ in xrange(len(output))]) + "\n"
output += separator
for k in urls:
count_succ = 0
all = len(urls[k]["times"])
for time, response_code in urls[k]["times"]:
if int(time) <= max_time[k] and response_code == "200":
count_succ += 1
dist = (all * 100.0) / all_requests
dist_sum = dist_sum + dist
allowed_deviation = 0.05 * web_interactions.get_probability(k)
status = "NOT OK"
p = (count_succ * 100) / all
if count_succ >= (all * 90) / 100:
status = "OK"
p = 0
actual_deviation = get_actual_deviation(dist, k)
deviation_ok = is_deviation_ok(dist, allowed_deviation, k)
output += "%-40s %s %-20s %s %-20s %s %-25s %s %-20s %s %-20s %s %-20.3f %s %-20s %s %-20s\n" % (
k,
"|",
status,
"|",
all,
"|",
count_succ,
"|",
p,
"|",
"%.3f%% (%.3f%%)" % (dist, web_interactions.get_probability(k)),
"|",
allowed_deviation,
"|",
actual_deviation,
"|",
deviation_ok,
)
fp.close()
output += separator
output += "# ALL REQUESTS = %s, # UNSUCCESSFULL REQUESTS = %s, PROB SUM = %s\n" % (
all_requests,
unsuccessfull,
dist_sum,
)
return output
def check(file_path):
output = ""
urls = {}
unsuccessfull = 0
all_requests = 0
fp = open(file_path)
for line in fp:
converters = Converters()
try:
timestamp, estimated_time, operation, response_code, _, _, _ = line.split(",")
url = converters.url_converter(operation)
if url != None and max_time.has_key(url):
all_requests+=1
if not urls.has_key(url):
urls[url] = {}
urls[url]['times'] = []
urls[url]['times'].append([estimated_time, response_code])
if response_code != "200":
unsuccessfull += 1
except Exception as e:
output += "Exception occured\n"
output += e.message + "\n"
pass
dist_sum = 0
web_interactions = WebInteractions()
output += "%-40s %s %-20s %s %-20s %s %-25s %s %-20s %s %-20s %s %-20s %s %-20s %s %-20s\n" % ("operation", "|", "status", "|", "# all request", "|", "# successfull requests", "|", "% of successfull", "|", "% of operation", "|", "allowed deviation", "|", "actual deviation", "|", "deviation ok?")
separator = "".join(["-" for _ in xrange(len(output))]) + "\n"
output += separator
cummulative_violations = 0
cummulative_successful = 0
cummulative_all = 0
for k in urls:
count_succ = 0
all = len(urls[k]['times'])
for time, response_code in urls[k]['times']:
if int(time) <= max_time[k] and response_code == "200":
count_succ += 1
cummulative_successful += count_succ
cummulative_all += all
dist = (all*100.0)/all_requests
dist_sum = dist_sum + dist
allowed_deviation = 0.05*web_interactions.get_probability(k)
status = "NOT OK"
p = (count_succ*100)/all
if count_succ >= (all * 90) / 100:
status = "OK"
# p = 0
cummulative_violations += p
actual_deviation = get_actual_deviation(dist, k)
deviation_ok = is_deviation_ok(dist, allowed_deviation, k)
output += "%-40s %s %-20s %s %-20s %s %-25s %s %-20s %s %-20s %s %-20.3f %s %-20s %s %-20s\n" % (k, "|", status, "|", all, "|", count_succ, "|", p, "|", "%.3f%% (%.3f%%)" % (dist, web_interactions.get_probability(k)), "|", allowed_deviation, "|", actual_deviation, "|", deviation_ok)
fp.close()
output += separator
output += "# ALL REQUESTS = %s, # UNSUCCESSFULL REQUESTS = %s, PROB SUM = %s, # SLO VIOLATIONS = %s%%\n" % (all_requests, unsuccessfull, dist_sum, (((cummulative_all-cummulative_successful)*100)/cummulative_all))
return output
def is_deviation_ok(dist, allowed_deviation, k):
web_interactions = WebInteractions()
if dist <= (web_interactions.get_probability(k) + allowed_deviation) and dist >= (web_interactions.get_probability(k) - allowed_deviation):
return "yes"
return"no"
