Mercurial > p > roundup > code
view website/issues/extensions/local_replace.py @ 6565:2c2dbfc332ba
Try to handle multiple connections better.
The session database is a hot spot. When multiple requests (e.g. 20)
come in at the same time session database contention can get great.
The original code didn't retry session database access when the open
failed. This resulted in errors at the client.
The second pass delayed 0.01 seconds and retried. It was better but we
still had multiple second stalls. I think the first request got in,
everybody else backed up and then retried at the same time. Again they
stepped on each other. With logging I would see many counters go all
the way to low single digits or to -1 indicating falure.
This pass uses randomint to generate delays from 0-.125 seconds in 5ms
increments. This performs better in testing. I rarely saw a counter
less than 13 (2 failed retries). Current logging starts after 6
failures and counts down until success or failure.
| author | John Rouillard <rouilj@ieee.org> |
|---|---|
| date | Thu, 16 Dec 2021 20:02:00 -0500 |
| parents | 042c50d5e06e |
| children | ca62a7cc3c9b |
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from __future__ import print_function import re hg_url_base = r'http://sourceforge.net/p/roundup/code/ci/' substitutions = [ (re.compile(r'debian:\#(?P<id>\d+)'), r'<a href="http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=\g<id>">debian#\g<id></a>' ), (re.compile(r'\#(?P<ws>\s*)(?P<id>\d+)'), r"<a href='issue\g<id>'>#\g<ws>\g<id></a>" ), (re.compile(r'(?P<prews>^|\s+)issue(?P<ws>\s*)(?P<id>\d+)'), r"\g<prews><a href='issue\g<id>'>issue\g<ws>\g<id></a>" ), # matching the typical number:hash format of hg's own output # and then use use hash instead of the number (re.compile(r'(?P<prews>(^|\s+))(?P<revstr>(rev\s*|hg\s*|changeset: ))(?P<revnumber>\d+):(?P<refhash>[0-9a-fA-F]{12,40})(?P<post>\W+|$)'), r'\g<prews><a href="' + hg_url_base + '\g<refhash>">\g<revstr>\g<revnumber>:\g<refhash></a>\g<post>'), # matching hg revison number or hash (re.compile(r'(?P<prews>(^|\s+))(?P<revstr>(revision|rev|r)\s?)(?P<revision>([1-9][0-9]*)|[0-9a-fA-F]{4,40})(?P<post>\W+|$)'), r'\g<prews><a href="' + hg_url_base + '\g<revision>">\g<revstr>\g<revision></a>\g<post>'), ] def local_replace(message): for cre, replacement in substitutions: message = cre.sub(replacement, message) return message def init(instance): instance.registerUtil('localReplace', local_replace) def quicktest(msgstr, should_replace = True, substr = True): testcount['run'] += 1 replacedstr = local_replace(msgstr) if not (not replacedstr == msgstr ) == should_replace: print("(fail)", end=' ') testcount['failed'] += 1 elif substr and (msgstr not in replacedstr): print("(fail)", end=' ') testcount['failed'] += 1 if replacedstr == msgstr: print( "'%s'" % (msgstr,)) else: print("'%s' -> '%s'" % (msgstr, replacedstr)) if "__main__" == __name__: testcount = {'run':0 , 'failed': 0} print("Replacement examples:") quicktest(" debian:#222", substr=False) quicktest(" #555", substr=False) quicktest("issue333") quicktest(" revision 222", substr=False) quicktest(" r 222", substr=False) quicktest(" wordthatendswithr 222", False) quicktest(" references", False) quicktest(" too many spaces r 222", False) quicktest("re-evaluate", False) quicktest("rex140eb", False) quicktest("rev 012", False) # too short for a hg hash quicktest("rev 0123") quicktest("re140eb") quicktest(" r7140eb", substr=False) quicktest(" rev7140eb ", substr=False) quicktest("rev7140eb") quicktest("rev7140eb,", substr=False) quicktest("rev4891:ad3d628e73f2") quicktest("hg4891:ad3d628e73f2") quicktest("changeset: 4542:46239c21a1eb") quicktest("rev 4542:46239c21a1eb") quicktest("rev 4542:46239c21a1eb") # many spaces print() print(testcount)