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scripts/apache-log-rate: Use a deque instead of a list

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This commit is contained in:
Athanasius 2022-02-10 16:26:25 +00:00
parent 42129a50ce
commit 0414b18f97
1 changed files with 5 additions and 8 deletions
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13
scripts/apache-log-rate
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@ -3,6 +3,7 @@
"""Process Apache access.log lines to find highest rate of /upload/."""
import argparse
from collections import deque
import datetime
import dateutil.parser
import fileinput
@ -30,7 +31,7 @@ def process_log_file(
window_time_delta = datetime.timedelta(seconds=window_size)
window_count = 0
window_dts = []
window_dts = deque()
line_count = 0
for line in f:
matches = apache_re.search(line)
@ -47,13 +48,8 @@ def process_log_file(
# Find the oldest entry that is still within the window:
oldest_of_interest = this_dt - window_time_delta
dti = 0
for dt in window_dts:
if dt >= oldest_of_interest:
break
dti += 1
window_dts = window_dts[dti:]
while window_dts[0] < oldest_of_interest:
window_dts.popleft()
# Now we need to expire any of the oldest stored timestamps that
# are outside the window relative to this
@ -61,6 +57,7 @@ def process_log_file(
if len(window_dts) > window_count:
window_count = len(window_dts)
# print(f'Largest window count : {window_count:>9} ({window_count / window_size:>9}/s)')
# print()