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Enhance timeout check to avoid false positives during processing [of video download to IIAB] #170

Merged
merged 8 commits into from
Jun 4, 2024
24 changes: 10 additions & 14 deletions cps/tasks/download.py
Original file line number Diff line number Diff line change
Expand Up @@ -51,16 +51,17 @@ def run(self, worker_thread):

complete_progress_cycle = 0

last_progress_time = datetime.now()
fragment_stuck_timeout = 30 # seconds
fragment_stuck_time = 0

while p.poll() is None:
self.end_time = datetime.now()
# Check if there's data available to read
rlist, _, _ = select.select([p.stdout], [], [], 0.1)
if rlist:
line = p.stdout.readline()
if line:
if re.search(pattern_success, line):
if re.search(pattern_success, line) or complete_progress_cycle == 4:
# 2024-01-10: 99% (a bit arbitrary) is explained here...
# https://github.com/iiab/calibre-web/pull/88#issuecomment-1885916421
self.progress = 0.99
Expand All @@ -69,21 +70,17 @@ def run(self, worker_thread):
percentage = int(re.search(r'\d+', line).group())
if percentage < 100:
self.message = f"Downloading {self.media_url_link}..."
self.end_time = datetime.now()
self.progress = min(0.99, (complete_progress_cycle + (percentage / 100)) / 4)
if percentage == 100:
complete_progress_cycle += 1
if complete_progress_cycle == 4:
break
last_progress_time = datetime.now()
else:
fragment_stuck_time += 0.1
if fragment_stuck_time >= fragment_stuck_timeout:
log.error("Download appears to be stuck.")
self.record_error_in_database("Download appears to be stuck.")
raise ValueError("Download appears to be stuck.")
elapsed_time = (datetime.now() - last_progress_time).total_seconds()
if elapsed_time >= fragment_stuck_timeout:
self.message = f"Downloading {self.media_url_link}... (This is taking longer than expected)"

sleep(0.1)

p.wait()

# Database operations
Expand Down Expand Up @@ -118,7 +115,7 @@ def run(self, worker_thread):
else:
log.error("Failed to send the requested file to %s", self.original_url)
self.message = f"{self.media_url_link} failed to download: {response.status_code} {response.reason}"

conn.close()

except Exception as e:
Expand All @@ -127,12 +124,11 @@ def run(self, worker_thread):
self.record_error_in_database(str(e))

finally:
self.end_time = datetime.now()
if p.returncode == 0 or self.progress == 1.0:
self.end_time = datetime.now()
self.stat = STAT_FINISH_SUCCESS
log.info("Download task for %s completed successfully", self.media_url)
else:
self.end_time = datetime.now()
self.stat = STAT_FAIL

else:
Expand Down