mirror of https://github.com/ekimekim/wubloader
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
612 lines
24 KiB
Python
612 lines
24 KiB
Python
import errno
|
|
import datetime
|
|
import itertools
|
|
import logging
|
|
import os
|
|
import signal
|
|
import uuid
|
|
|
|
import argh
|
|
import gevent.backdoor
|
|
import matplotlib
|
|
import matplotlib.image
|
|
import numpy as np
|
|
import prometheus_client as prom
|
|
|
|
import common
|
|
from common import dateutil
|
|
from common import database
|
|
from common.segments import list_segment_files
|
|
|
|
|
|
segment_count_gauge = prom.Gauge(
|
|
'segment_count',
|
|
'Number of segments in an hour',
|
|
['channel', 'quality', 'hour', 'type'],
|
|
)
|
|
|
|
segment_duration_gauge = prom.Gauge(
|
|
'segment_duration',
|
|
'Segment duration in an hour',
|
|
['channel', 'quality', 'hour', 'type'],
|
|
)
|
|
|
|
raw_coverage_gauge = prom.Gauge(
|
|
'raw_coverage',
|
|
'Total time covered by segments in an hour',
|
|
['channel', 'quality', 'hour'],
|
|
)
|
|
|
|
editable_coverage_gauge = prom.Gauge(
|
|
'editable_coverage',
|
|
'Non-overlapping time covered by segments in an hour',
|
|
['channel', 'quality', 'hour'],
|
|
)
|
|
|
|
raw_holes_gauge = prom.Gauge(
|
|
'raw_holes',
|
|
'Number of holes in raw coverage for the hour',
|
|
['channel', 'quality', 'hour'],
|
|
)
|
|
|
|
editable_holes_gauge = prom.Gauge(
|
|
'editable_holes',
|
|
'Number of holes in editable coverage for the hour',
|
|
['channel', 'quality', 'hour'],
|
|
)
|
|
|
|
overlap_count_gauge = prom.Gauge(
|
|
'overlap_count',
|
|
'Number of overlap segments for the hour',
|
|
['channel', 'quality', 'hour', 'type'],
|
|
)
|
|
|
|
overlap_duration_gauge = prom.Gauge(
|
|
'overlap_duration',
|
|
'Duration of overlaping segments for the hour',
|
|
['channel', 'quality', 'hour', 'type'],
|
|
)
|
|
|
|
|
|
HOUR_FMT = '%Y-%m-%dT%H'
|
|
|
|
class CoverageChecker(object):
|
|
"""Checks the segment coverage for a given channel in a a given directoy."""
|
|
|
|
def __init__(self, channel, qualities, base_dir, first_hour, last_hour,
|
|
make_page, connection_string, check_interval, output_dir, run_once):
|
|
"""Constructor for CoverageChecker.
|
|
|
|
Creates a checker for a given channel with specified qualities."""
|
|
|
|
self.base_dir = base_dir
|
|
self.channel = channel
|
|
self.qualities = qualities
|
|
self.first_hour = first_hour
|
|
self.last_hour = last_hour
|
|
self.make_page = make_page
|
|
self.db_manager = None if connection_string is None else database.DBManager(dsn=connection_string)
|
|
self.check_interval = check_interval
|
|
self.output_dir = output_dir
|
|
self.run_once = run_once
|
|
self.stopping = gevent.event.Event()
|
|
self.logger = logging.getLogger('CoverageChecker({})'.format(channel))
|
|
|
|
|
|
def stop(self):
|
|
"""Stop checking coverage."""
|
|
|
|
self.logger.info('Stopping')
|
|
self.stopping.set()
|
|
|
|
def create_coverage_map(self, quality, all_hour_holes, all_hour_partials,
|
|
pixel_length=2, rows=300):
|
|
"""Create a PNG image showing segment coverage.
|
|
|
|
Each pixel repersents pixel_length seconds, with time increasing from
|
|
top to bottom along each column then right to left. By default each
|
|
pixel is 2 s and each column of the image repersents 10 min. White
|
|
pixels have no coverage, orange pixels only have coverage by partial
|
|
segments and blue pixels have coverage by full segments. If any part
|
|
of a pixel does not have coverage, it is marked as not having coverage.
|
|
Likewise, if only a partial segment is available for any part of a
|
|
pixel, it is marked as partial.
|
|
|
|
all_hour_holes -- a dict mapping hours to lists of holes
|
|
all_hour_holes -- a dict mapping hours to lists of partial segments
|
|
pixel_length -- length of a pixel in seconds
|
|
rows -- the height of the image"""
|
|
|
|
if not all_hour_holes:
|
|
self.logger.info('No hours to generate coverage map from')
|
|
return
|
|
|
|
|
|
if self.first_hour is None:
|
|
first_hour = datetime.datetime.strptime(min(all_hour_holes.keys()), HOUR_FMT)
|
|
else:
|
|
first_hour = self.first_hour.replace(minute=0, second=0, microsecond=0)
|
|
if self.last_hour is None:
|
|
last_hour = datetime.datetime.strptime(max(all_hour_holes.keys()), HOUR_FMT)
|
|
else:
|
|
last_hour = self.last_hour.replace(minute=0, second=0, microsecond=0)
|
|
self.logger.info('Creating coverage map for {} from {} to {}'.format(quality,
|
|
first_hour.strftime(HOUR_FMT), last_hour.strftime(HOUR_FMT)))
|
|
|
|
hours = []
|
|
latest_hour = first_hour
|
|
while latest_hour <= last_hour:
|
|
hours.append(latest_hour)
|
|
latest_hour += datetime.timedelta(hours = 1)
|
|
|
|
pixel_starts = np.arange(0, 3600, pixel_length) # start times of the pixels in an hour in seconds
|
|
pixel_ends = np.arange(pixel_length, 3601, pixel_length) # end times of the pixels in an hour in seconds
|
|
pixel_count = 3600 // pixel_length # number of pixels in an hour
|
|
coverage_mask = np.zeros(len(hours) * pixel_count, dtype=np.bool_)
|
|
partial_mask = np.zeros(len(hours) * pixel_count, dtype=np.bool_)
|
|
for i, hour in enumerate(hours):
|
|
hour_str = hour.strftime(HOUR_FMT)
|
|
if hour_str in all_hour_holes:
|
|
|
|
hour_coverage = np.ones(pixel_count, dtype=np.bool_)
|
|
hour_partial = np.zeros(pixel_count, dtype=np.bool_)
|
|
|
|
for hole in all_hour_holes[hour_str]:
|
|
hole_start = np.floor((hole[0] - hour).total_seconds() / pixel_length) * pixel_length # the start of the pixel containing the start of the hole
|
|
hole_end = np.ceil((hole[1] - hour).total_seconds() / pixel_length) * pixel_length # the end of the pixel containing the end of the hole
|
|
hour_coverage = hour_coverage & ((pixel_starts < hole_start) | (pixel_ends > hole_end))
|
|
|
|
for partial in all_hour_partials[hour_str]:
|
|
partial_start = np.floor((partial[0] - hour).total_seconds() / pixel_length) * pixel_length # the start of the pixel containing the start of the partial segment
|
|
partial_end = np.ceil((partial[1] - hour).total_seconds() / pixel_length) * pixel_length # the end of the pixel containing the end of the partial segment
|
|
hour_partial = hour_partial | ((pixel_starts >= partial_start) & (pixel_ends <= partial_end))
|
|
|
|
coverage_mask[i * pixel_count:(i + 1) * pixel_count] = hour_coverage
|
|
partial_mask[i * pixel_count:(i + 1) * pixel_count] = hour_partial
|
|
|
|
# convert the flat masks into 2-D arrays
|
|
columns = coverage_mask.size // rows
|
|
coverage_mask = coverage_mask.reshape((columns, rows)).T
|
|
partial_mask = partial_mask.reshape((columns, rows)).T
|
|
|
|
# use the masks to set the actual pixel colours
|
|
colours = np.ones((rows, columns, 3))
|
|
colours[coverage_mask] = matplotlib.colors.to_rgb('tab:blue')
|
|
colours[coverage_mask & partial_mask] = matplotlib.colors.to_rgb('tab:orange')
|
|
# write the pixel array to a temporary file then atomically rename it
|
|
path_prefix = os.path.join(self.base_dir, self.output_dir, '{}_{}'.format(self.channel, quality))
|
|
temp_path = '{}_{}.png'.format(path_prefix, uuid.uuid4())
|
|
final_path = '{}_coverage.png'.format(path_prefix)
|
|
common.ensure_directory(temp_path)
|
|
matplotlib.image.imsave(temp_path, colours)
|
|
os.rename(temp_path, final_path)
|
|
self.logger.info('Coverage map for {} created'.format(quality))
|
|
|
|
def create_coverage_page(self, quality):
|
|
nodes = {}
|
|
try:
|
|
connection = self.db_manager.get_conn()
|
|
host = [s.split('=')[-1] for s in connection.dsn.split() if 'host' in s][0]
|
|
self.logger.info('Fetching list of nodes from {}'.format(host))
|
|
results = database.query(connection, """
|
|
SELECT name, url
|
|
FROM nodes
|
|
WHERE backfill_from""")
|
|
for row in results:
|
|
nodes[row.name] = row.url
|
|
except:
|
|
self.logger.exception('Getting nodes failed.', exc_info=True)
|
|
return
|
|
|
|
self.logger.info('Nodes fetched: {}'.format(list(nodes.keys())))
|
|
|
|
html = """<!DOCTYPE html>
|
|
<html>
|
|
<head>
|
|
<meta charset="utf-8">
|
|
<title>{0} {1} Segment Coverage Maps</title>
|
|
<style>
|
|
html {{ background-color: #222;}}
|
|
h1 {{ color: #eee;
|
|
text-align: center;
|
|
font-family: sans-serif;}}
|
|
h3 {{ color: #eee;
|
|
text-align: center;
|
|
font-family: sans-serif;}}
|
|
img {{ display: block;
|
|
margin-left: auto;
|
|
margin-right: auto;}}
|
|
</style>
|
|
<script>
|
|
function updateImages() {{
|
|
const now = new Date().getTime(); // Generate a timestamp (to force past the browser cache)
|
|
for (const image of document.getElementsByTagName("img")) {{
|
|
const imageUrl = new URL(image.src);
|
|
imageUrl.search = `t=${{now}}`;
|
|
image.src = imageUrl;
|
|
}}
|
|
}}
|
|
setInterval(updateImages, 30000);
|
|
</script>
|
|
</head>
|
|
<body>
|
|
<h1>{0} {1}</h1>""".format(self.channel, quality)
|
|
|
|
for node in sorted(nodes.keys()):
|
|
html += """ <h3>{}</h3>
|
|
<img src="{}/segments/{}/{}_{}_coverage.png" alt="{}">
|
|
""".format(node, nodes[node], self.output_dir, self.channel, quality, node)
|
|
|
|
html += """ </body>
|
|
</html>"""
|
|
|
|
path_prefix = os.path.join(self.base_dir, self.output_dir, '{}_{}'.format(self.channel, quality))
|
|
temp_path = '{}_{}.html'.format(path_prefix, uuid.uuid4())
|
|
final_path = '{}_coverage.html'.format(path_prefix)
|
|
common.ensure_directory(temp_path)
|
|
with open(temp_path, 'w') as f:
|
|
common.writeall(f.write, html)
|
|
os.rename(temp_path, final_path)
|
|
self.logger.info('Coverage page for {} created'.format(quality))
|
|
|
|
|
|
def run(self):
|
|
"""Loop over available hours for each quality, checking segment coverage."""
|
|
self.logger.info('Starting')
|
|
|
|
ALLOWABLE_OVERLAP = 0.01 # 10ms
|
|
ALLOWABLE_GAP = 0.01 # 10ms
|
|
|
|
while not self.stopping.is_set():
|
|
|
|
for quality in self.qualities:
|
|
if self.stopping.is_set():
|
|
break
|
|
|
|
path = os.path.join(self.base_dir, self.channel, quality)
|
|
try:
|
|
hours = [name for name in os.listdir(path) if not name.startswith('.')]
|
|
except OSError as e:
|
|
if e.errno == errno.ENOENT:
|
|
self.logger.info('{} does not exist, skipping'.format(path))
|
|
continue
|
|
|
|
hours.sort()
|
|
previous_hour_segments = None
|
|
all_hour_holes = {}
|
|
all_hour_partials = {}
|
|
for hour in hours:
|
|
# Let other things run, to avoid starving them with CPU-heavy workload
|
|
# (in particular the metrics server can have issues responding in time
|
|
# otherwise).
|
|
gevent.idle()
|
|
|
|
if self.stopping.is_set():
|
|
break
|
|
self.logger.info('Checking {}/{}'.format(quality, hour))
|
|
|
|
# based on common.segments.best_segments_by_start
|
|
# but more complicated to capture more detailed metrics
|
|
hour_path = os.path.join(self.base_dir, self.channel, quality, hour)
|
|
segment_names = list_segment_files(hour_path)
|
|
segment_names.sort()
|
|
parsed = []
|
|
bad_segment_count = 0
|
|
for name in segment_names:
|
|
try:
|
|
parsed.append(common.parse_segment_path(os.path.join(hour_path, name)))
|
|
except ValueError:
|
|
self.logger.warning("Failed to parse segment: {!r}".format(os.path.join(hour_path, name)), exc_info=True)
|
|
bad_segment_count += 1
|
|
|
|
full_segment_count = 0
|
|
suspect_segment_count = 0
|
|
partial_segment_count = 0
|
|
full_segment_duration = datetime.timedelta()
|
|
suspect_segment_duration = datetime.timedelta()
|
|
partial_segment_duration = datetime.timedelta()
|
|
full_overlaps = 0
|
|
full_overlap_duration = datetime.timedelta()
|
|
suspect_overlaps = 0
|
|
suspect_overlap_duration = datetime.timedelta()
|
|
partial_overlaps = 0
|
|
partial_overlap_duration = datetime.timedelta()
|
|
best_segments = []
|
|
holes = []
|
|
editable_holes = []
|
|
previous = None
|
|
previous_editable = None
|
|
coverage = datetime.timedelta()
|
|
editable_coverage = datetime.timedelta()
|
|
only_partials = []
|
|
|
|
# loop over all start times
|
|
# first select the best segment for a start time
|
|
# then update coverage
|
|
for start_time, segments in itertools.groupby(parsed, key=lambda segment: segment.start):
|
|
full_segments = []
|
|
suspect_segments = []
|
|
partial_segments = []
|
|
for segment in segments:
|
|
if segment.type == 'full':
|
|
full_segments.append(segment)
|
|
full_segment_count += 1
|
|
full_segment_duration += segment.duration
|
|
elif segment.type == 'suspect':
|
|
suspect_segments.append(segment)
|
|
suspect_segment_count += 1
|
|
suspect_segment_duration += segment.duration
|
|
elif segment.type == 'partial':
|
|
partial_segments.append(segment)
|
|
partial_segment_count += 1
|
|
partial_segment_duration += segment.duration
|
|
if full_segments:
|
|
full_segments.sort(key=lambda segment: (segment.duration))
|
|
best_segment = full_segments[-1]
|
|
for segment in full_segments[:-1]:
|
|
full_overlaps += 1
|
|
full_overlap_duration += segment.duration
|
|
for segment in partial_segments:
|
|
partial_overlaps += 1
|
|
partial_overlap_duration += segment.duration
|
|
elif suspect_segments:
|
|
suspect_segments.sort(key=lambda segment: os.stat(segment.path).st_size)
|
|
best_segment = suspect_segments[-1]
|
|
only_partials.append((best_segment.start, best_segment.start + best_segment.duration))
|
|
for segment in suspect_segments[:-1]:
|
|
suspect_overlaps += 1
|
|
suspect_overlap_duration += segment.duration
|
|
|
|
elif partial_segments:
|
|
partial_segments.sort(key=lambda segment: os.stat(segment.path).st_size)
|
|
best_segment = partial_segments[-1]
|
|
only_partials.append((best_segment.start, best_segment.start + best_segment.duration))
|
|
for segment in partial_segments[:-1]:
|
|
partial_overlaps += 1
|
|
partial_overlap_duration += segment.duration
|
|
else:
|
|
# ignore any start times with only temporary segments
|
|
continue
|
|
self.logger.debug(best_segment.path.split('/')[-1])
|
|
best_segments.append(best_segment)
|
|
|
|
# now update coverage, overlaps and holes
|
|
if previous is None:
|
|
coverage += best_segment.duration
|
|
editable_coverage += best_segment.duration
|
|
previous_editable = best_segment
|
|
else:
|
|
previous_end = previous.start + previous.duration
|
|
gap = (segment.start - previous_end).total_seconds()
|
|
if gap < -ALLOWABLE_OVERLAP:
|
|
if segment.type == 'full':
|
|
full_overlaps += 1
|
|
full_overlap_duration += previous_end - segment.start
|
|
elif segment.type == 'suspect':
|
|
suspect_overlaps += 1
|
|
suspect_overlap_duration += previous_end - segment.start
|
|
else:
|
|
partial_overlaps += 1
|
|
partial_overlap_duration += previous_end - segment.start
|
|
coverage += segment.start - previous_end + segment.duration
|
|
else:
|
|
coverage += segment.duration
|
|
editable_coverage += segment.duration
|
|
|
|
if gap > ALLOWABLE_GAP:
|
|
holes.append((previous_end, segment.start))
|
|
|
|
previous_editable_end = previous_editable.start + previous_editable.duration
|
|
if (segment.start - previous_editable_end).total_seconds() > ALLOWABLE_GAP:
|
|
editable_holes.append((previous_editable_end, segment.start))
|
|
|
|
previous_editable = best_segment
|
|
|
|
previous = best_segment
|
|
|
|
if best_segments:
|
|
start = best_segments[0].start
|
|
end = best_segments[-1].start + best_segments[-1].duration
|
|
hole_duration = end - start - coverage
|
|
editable_hole_duration = end - start - editable_coverage
|
|
|
|
hour_start = datetime.datetime.strptime(hour, HOUR_FMT)
|
|
hour_end = hour_start + datetime.timedelta(hours=1)
|
|
# handle the case when there is a hole between the last segment of the previous hour and the first of this
|
|
if previous_hour_segments:
|
|
last_segment = previous_hour_segments[-1]
|
|
if best_segments[0].start > last_segment.start + last_segment.duration:
|
|
holes.append((hour_start, start))
|
|
hole_duration += start - hour_start
|
|
editable_holes.append((hour_start, start))
|
|
editable_hole_duration += start - hour_start
|
|
|
|
# handle the case when there is a hole between the last segment and the end of the hour if not the last hour
|
|
if hour != hours[-1] and end < hour_end:
|
|
holes.append((end, hour_end))
|
|
hole_duration += hour_end - end
|
|
editable_holes.append((end, hour_end))
|
|
editable_hole_duration += hour_end - end
|
|
|
|
# update the large number of Prometheus guages
|
|
segment_count_gauge.labels(
|
|
channel=self.channel, quality=quality, hour=hour, type='full'
|
|
).set(full_segment_count)
|
|
segment_count_gauge.labels(
|
|
channel=self.channel, quality=quality, hour=hour, type='suspect'
|
|
).set(suspect_segment_count)
|
|
segment_count_gauge.labels(
|
|
channel=self.channel, quality=quality, hour=hour, type='partial'
|
|
).set(partial_segment_count)
|
|
segment_count_gauge.labels(
|
|
channel=self.channel, quality=quality, hour=hour, type='bad'
|
|
).set(bad_segment_count)
|
|
segment_duration_gauge.labels(
|
|
channel=self.channel, quality=quality, hour=hour, type='full'
|
|
).set(full_segment_duration.total_seconds())
|
|
segment_duration_gauge.labels(
|
|
channel=self.channel, quality=quality, hour=hour, type='suspect'
|
|
).set(suspect_segment_duration.total_seconds())
|
|
segment_duration_gauge.labels(
|
|
channel=self.channel, quality=quality, hour=hour, type='partial'
|
|
).set(partial_segment_duration.total_seconds())
|
|
raw_coverage_gauge.labels(
|
|
channel=self.channel, quality=quality, hour=hour
|
|
).set(coverage.total_seconds())
|
|
editable_coverage_gauge.labels(
|
|
channel=self.channel, quality=quality, hour=hour
|
|
).set(editable_coverage.total_seconds())
|
|
raw_holes_gauge.labels(
|
|
channel=self.channel, quality=quality, hour=hour
|
|
).set(len(holes))
|
|
editable_holes_gauge.labels(
|
|
channel=self.channel, quality=quality, hour=hour
|
|
).set(len(editable_holes))
|
|
overlap_count_gauge.labels(
|
|
channel=self.channel, quality=quality, hour=hour, type='full'
|
|
).set(full_overlaps)
|
|
overlap_count_gauge.labels(
|
|
channel=self.channel, quality=quality, hour=hour, type='suspect'
|
|
).set(suspect_overlaps)
|
|
overlap_count_gauge.labels(
|
|
channel=self.channel, quality=quality, hour=hour, type='partial'
|
|
).set(partial_overlaps)
|
|
overlap_duration_gauge.labels(
|
|
channel=self.channel, quality=quality, hour=hour, type='full'
|
|
).set(full_overlap_duration.total_seconds())
|
|
overlap_duration_gauge.labels(
|
|
channel=self.channel, quality=quality, hour=hour, type='suspect'
|
|
).set(suspect_overlap_duration.total_seconds())
|
|
overlap_duration_gauge.labels(
|
|
channel=self.channel, quality=quality, hour=hour, type='partial'
|
|
).set(partial_overlap_duration.total_seconds())
|
|
|
|
# log the same information
|
|
if best_segments:
|
|
self.logger.info('{}/{}: Start: {} End: {} ({} s)'.format(
|
|
quality, hour, start, end,
|
|
(end - start).total_seconds()))
|
|
self.logger.info('{}/{}: {} full segments totalling {} s'.format(
|
|
quality, hour, full_segment_count,
|
|
full_segment_duration.total_seconds()))
|
|
self.logger.info('{}/{}: {} bad segments'.format(
|
|
quality, hour, bad_segment_count))
|
|
self.logger.info('{}/{}: {} overlapping full segments totalling {} s'.format(
|
|
quality, hour, full_overlaps,
|
|
full_overlap_duration.total_seconds()))
|
|
self.logger.info('{}/{}: {} suspect segments totalling {} s'.format(
|
|
quality, hour, suspect_segment_count,
|
|
suspect_segment_duration.total_seconds()))
|
|
self.logger.info('{}/{}: {} overlapping suspect segments totalling {} s'.format(
|
|
quality, hour, suspect_overlaps,
|
|
suspect_overlap_duration.total_seconds()))
|
|
self.logger.info('{}/{}: {} partial segments totalling {} s'.format(
|
|
quality, hour, partial_segment_count,
|
|
partial_segment_duration.total_seconds()))
|
|
self.logger.info('{}/{}: {} overlapping partial segments totalling {} s'.format(
|
|
quality, hour, partial_overlaps,
|
|
partial_overlap_duration.total_seconds()))
|
|
self.logger.info('{}/{}: raw coverage {} s, editable coverage {} s '.format(
|
|
quality, hour, coverage.total_seconds(),
|
|
editable_coverage.total_seconds()))
|
|
self.logger.info('{}/{}: {} holes totalling {} s '.format(
|
|
quality, hour, len(holes),
|
|
hole_duration.total_seconds()))
|
|
self.logger.info('{}/{}: {} editable holes totalling {} s '.format(
|
|
quality, hour, len(editable_holes),
|
|
editable_hole_duration.total_seconds()))
|
|
self.logger.info('Checking {}/{} complete'.format(
|
|
quality, hour))
|
|
|
|
# add holes for the start and end hours for the
|
|
# coverage map. do this after updating gauges and
|
|
# logging as these aren't likely real holes, just the
|
|
# start and end of the stream.
|
|
if previous_hour_segments is None:
|
|
holes.append((hour_start, start))
|
|
if hour == hours[-1]:
|
|
holes.append((end, hour_end))
|
|
|
|
|
|
all_hour_holes[hour] = holes
|
|
all_hour_partials[hour] = only_partials
|
|
|
|
previous_hour_segments = best_segments
|
|
|
|
else:
|
|
self.logger.info('{}/{} is empty'.format(quality, hour))
|
|
|
|
self.create_coverage_map(quality, all_hour_holes, all_hour_partials)
|
|
if self.make_page:
|
|
self.create_coverage_page(quality)
|
|
|
|
if self.run_once:
|
|
break
|
|
|
|
self.stopping.wait(common.jitter(self.check_interval))
|
|
|
|
|
|
@argh.arg('channels', nargs='*', help='Channels to check coverage of')
|
|
@argh.arg('--base-dir', help='Directory where segments are stored. Default is current working directory.')
|
|
@argh.arg('--qualities', help="Qualities of each channel to checked. Comma seperated if multiple. Default is 'source'.")
|
|
@argh.arg('--first-hour', help='First hour to compute coverage for. Default is earliest available hour.')
|
|
@argh.arg('--last-hour', help='Last hour to compute coverage for. Default is lastest available hour.')
|
|
@argh.arg('--make-page', help='Make a html page displaying coverage maps for all nodes in database')
|
|
@argh.arg('--connection-string', help='Postgres connection string, which is either a space-separated list of key=value pairs, or a URI like: postgresql://USER:PASSWORD@HOST/DBNAME?KEY=VALUE')
|
|
@argh.arg('--metrics-port', help='Port for Prometheus stats. Default is 8006.')
|
|
@argh.arg('--backdoor-port', help='Port for gevent.backdoor access. By default disabled.')
|
|
@argh.arg('--check-interval', help='How many seconds to wait in between doing checks.')
|
|
@argh.arg('--output-dir', help='Where to write coverage maps, relative to base dir.')
|
|
@argh.arg('--run-once', help='Exit after completing checks once.')
|
|
def main(channels, base_dir='.', qualities='source', first_hour=None,
|
|
last_hour=None, make_page=False, connection_string=None,
|
|
metrics_port=8006, backdoor_port=0, check_interval=300, output_dir="coverage-maps", run_once=False):
|
|
"""Segment coverage service"""
|
|
|
|
qualities = qualities.split(',') if qualities else []
|
|
qualities = [quality.strip() for quality in qualities]
|
|
if first_hour is not None:
|
|
first_hour = dateutil.parse(first_hour)
|
|
if last_hour is not None:
|
|
last_hour = dateutil.parse(last_hour)
|
|
|
|
common.PromLogCountsHandler.install()
|
|
common.install_stacksampler()
|
|
prom.start_http_server(metrics_port)
|
|
|
|
managers = []
|
|
workers = []
|
|
for channel in channels:
|
|
logging.info('Starting coverage checks {} with {} as qualities in {}'.format(channel, ', '.join(qualities), base_dir))
|
|
manager = CoverageChecker(channel, qualities, base_dir, first_hour,
|
|
last_hour, make_page, connection_string, check_interval, output_dir, run_once)
|
|
managers.append(manager)
|
|
workers.append(gevent.spawn(manager.run))
|
|
|
|
def stop():
|
|
for manager in managers:
|
|
manager.stop()
|
|
|
|
gevent.signal_handler(signal.SIGTERM, stop)
|
|
|
|
if backdoor_port:
|
|
gevent.backdoor.BackdoorServer(('127.0.0.1', backdoor_port), locals=locals()).start()
|
|
|
|
# Wait for any to die
|
|
gevent.wait(workers, count=1)
|
|
# If one has stopped, either:
|
|
# 1. stop() was called and all are stopping
|
|
# 2. one errored and we should stop all remaining and report the error
|
|
# 3. We were only told to run once, and it's finished.
|
|
# For cases 1 & 2, tell everyone else to stop. In the run-once case, let everyone else finish naturally.
|
|
if not run_once:
|
|
stop()
|
|
# Then wait until they've stopped
|
|
gevent.wait(workers)
|
|
# Finally, check if any of them failed. If they did, report it. If mulitple
|
|
# failed, we report one arbitrarily.
|
|
for worker in workers:
|
|
worker.get()
|
|
|
|
logging.info('Gracefully stopped')
|