167 lines
4.6 KiB
Python
167 lines
4.6 KiB
Python
import datetime
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import json
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import sys
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import time
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import prettytable
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sys.path.append("/stacktach")
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from stacktach import datetime_to_decimal as dt
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from stacktach import image_type
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from stacktach import models
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if __name__ != '__main__':
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sys.exit(1)
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yesterday = datetime.datetime.utcnow().date() - datetime.timedelta(days=1)
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if len(sys.argv) == 2:
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try:
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t = time.strptime(sys.argv[1], "%Y-%m-%d")
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yesterday = datetime.datetime(*t[:6])
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except Exception, e:
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print e
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print "Usage: python requests.py YYYY-MM-DD (the end date)"
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sys.exit(1)
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percentile = 90
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hours = 24
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start = datetime.datetime(year=yesterday.year, month=yesterday.month,
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day=yesterday.day)
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end = start + datetime.timedelta(hours=hours-1, minutes=59, seconds=59)
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print "Generating report for %s to %s" % (start, end)
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dstart = dt.dt_to_decimal(start)
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dend = dt.dt_to_decimal(end)
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codes = {}
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# Get all the instances that have changed in the last N hours ...
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updates = models.RawData.objects.filter(event='compute.instance.update',
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when__gt=dstart, when__lte=dend)\
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.values('instance').distinct()
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expiry = 60 * 60 # 1 hour
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cmds = ['create', 'rebuild', 'rescue', 'resize', 'snapshot']
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failures = {}
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durations = {}
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attempts = {}
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for uuid_dict in updates:
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uuid = uuid_dict['instance']
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# All the unique Request ID's for this instance during that timespan.
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reqs = models.RawData.objects.filter(instance=uuid,
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when__gt=dstart, when__lte=dend) \
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.values('request_id').distinct()
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for req_dict in reqs:
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report = False
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req = req_dict['request_id']
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raws = models.RawData.objects.filter(request_id=req)\
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.exclude(event='compute.instance.exists')\
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.order_by('when')
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start = None
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err = None
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operation = "aux"
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image_type_num = 0
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for raw in raws:
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if not start:
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start = raw.when
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if 'error' in raw.routing_key:
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err = raw
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report = True
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for cmd in cmds:
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if cmd in raw.event:
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operation = cmd
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break
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if raw.image_type:
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image_type_num |= raw.image_type
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image = "?"
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if image_type.isset(image_type_num, image_type.BASE_IMAGE):
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image = "base"
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if image_type.isset(image_type_num, image_type.SNAPSHOT_IMAGE):
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image = "snap"
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if not start:
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continue
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end = raw.when
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diff = end - start
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if diff > 3600:
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report = True
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key = (operation, image)
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# Track durations for all attempts, good and bad ...
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_durations = durations.get(key, [])
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_durations.append(diff)
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durations[key] = _durations
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attempts[key] = attempts.get(key, 0) + 1
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if report:
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failures[key] = failures.get(key, 0) + 1
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# Print the results ...
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cols = ["Operation", "Image", "Min*", "Max*", "Avg*",
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"Requests", "# Fail", "Fail %"]
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p = prettytable.PrettyTable(cols)
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for c in cols[2:]:
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p.align[c] = 'r'
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p.sortby = cols[0]
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pct = (float(100 - percentile) / 2.0) / 100.0
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print "* Using %d-th percentile for results (+/-%.1f%% cut)" % \
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(percentile, pct * 100.0)
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total = 0
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failure_total = 0
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for key, count in attempts.iteritems():
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total += count
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operation, image = key
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failure_count = failures.get(key, 0)
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failure_total += failure_count
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failure_percentage = float(failure_count) / float(count)
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_failure_percentage = "%.1f%%" % (failure_percentage * 100.0)
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# N-th % of durations ...
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_values = durations[key]
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_values.sort()
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_outliers = int(float(len(_values)) * pct)
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if _outliers > 0:
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before = len(_values)
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_values = _values[_outliers:-_outliers]
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print "culling %d -> %d" % (before, len(_values))
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_min = 99999999
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_max = 0
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_total = 0.0
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for value in _values:
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_min = min(_min, value)
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_max = max(_max, value)
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_total += float(value)
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_avg = float(_total) / float(len(_values))
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_fmin = dt.sec_to_str(_min)
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_fmax = dt.sec_to_str(_max)
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_favg = dt.sec_to_str(_avg)
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p.add_row([operation, image, _fmin, _fmax, _favg, count,
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failure_count, _failure_percentage])
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print p
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print "Total: %d, Failures: %d, Failure Rate: %.1f%%" % \
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(total, failure_total,
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(float(failure_total)/float(total)) * 100.0)
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