Kerry,
The first thing to do is verify the network configuration on the Review
Board server. It’s the server which is experiencing these timeouts.
If you don’t need DMARC for your emails, you could also change the settings
for email delivery to avoid the DNS lookup here. That said, if DNS is
unreliable, it’s hard to predict what other problems might arise.
David
On Tue, May 16, 2023 at 8:21 AM Kerry Groeschel <kerry.groesc...@gmail.com>
wrote:
> Occasionally clients to our RB 5.0.4/Ubuntu 22.04 get a HTTP 500 Internal
> Server Error when posting to RB. It appears email notifications do not go
> out when this occurs but the posting to RB is successful. Below is the RB
> log showing a traceback that seems to go back to a DNS timeout. Anyone
> have any ideas on how to resolve this or troubleshoot it further?
>
> 2023-05-16 13:28:53,171 - DEBUG - -
> reviewboard.reviews.models.review_request - Calculated issue counts for
> review request ID 4045 across 1 review(s): Resulting counts = {'O': 1, 'R':
> 0, 'D': 0, 'A': 0, 'B': 0}; DB values = <QuerySet [{'comments__pk': None,
> 'comments__issue_opened': None, 'comments__issue_status': None,
> 'file_attachment_comments__pk': 10089,
> 'file_attachment_comments__issue_opened': True,
> 'file_attachment_comments__issue_status': 'O', 'general_comments__pk':
> None, 'general_comments__issue_opened': None,
> 'general_comments__issue_status': None, 'screenshot_comments__pk': None,
> 'screenshot_comments__issue_opened': None,
> 'screenshot_comments__issue_status': None}]>; Field IDs = {'comments':
> set(), 'file_attachment_comments': {10089}, 'general_comments': set(),
> 'screenshot_comments': set()}
> 2023-05-16 13:28:53,248 - DEBUG - - djblets.cache.backend - Cache miss
> for key "<servername>:/:dmarc-record-<domain>.com"
> 2023-05-16 13:28:58,651 - ERROR - None - E1377138 -
> /api/review-requests/4045/reviews/31228/ - djblets.log.middleware -
> Exception thrown for user E1377138 at http://
> <servername>/api/review-requests/4045/reviews/31228/
>
> The resolution lifetime expired after 5.402 seconds: Server 127.0.0.53 UDP
> port 53 answered The DNS operation timed out.; Server 127.0.0.53 UDP port
> 53 answered The DNS operation timed out.; Server 127.0.0.53 UDP port 53
> answered The DNS operation timed out.
> Traceback (most recent call last):
> File
> "/usr/local/lib/python3.10/dist-packages/django/core/handlers/base.py",
> line 181, in _get_response
> response = wrapped_callback(request, *callback_args, **callback_kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/django/views/decorators/cache.py",
> line 44, in _wrapped_view_func
> response = view_func(request, *args, **kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/django/views/decorators/vary.py",
> line 20, in inner_func
> response = func(*args, **kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/djblets/webapi/resources/base.py",
> line 232, in __call__
> result = self.call_method_view(
> File
> "/usr/local/lib/python3.10/dist-packages/reviewboard/webapi/base.py", line
> 348, in call_method_view
> return super(WebAPIResource, self).call_method_view(
> File
> "/usr/local/lib/python3.10/dist-packages/djblets/webapi/resources/mixins/api_tokens.py",
> line 62, in call_method_view
> return super(ResourceAPITokenMixin, self).call_method_view(
> File
> "/usr/local/lib/python3.10/dist-packages/djblets/webapi/resources/mixins/oauth2_tokens.py",
> line 99, in call_method_view
> return super(ResourceOAuth2TokenMixin, self).call_method_view(
> File
> "/usr/local/lib/python3.10/dist-packages/djblets/webapi/resources/base.py",
> line 429, in call_method_view
> return view(request, *args, **kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/djblets/webapi/resources/base.py",
> line 545, in put
> return self.update(request, *args, **kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/djblets/webapi/decorators.py",
> line 156, in _call
> return view_func(*args, **kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/djblets/util/decorators.py", line
> 47, in _call
> f = augmented_func(*args, **kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/djblets/webapi/decorators.py",
> line 156, in _call
> return view_func(*args, **kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/reviewboard/webapi/decorators.py",
> line 170, in _check
> return view_func(*args, **kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/djblets/webapi/decorators.py",
> line 156, in _call
> return view_func(*args, **kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/djblets/webapi/decorators.py",
> line 177, in _checklogin
> return view_func(*args, **kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/djblets/webapi/decorators.py",
> line 156, in _call
> return view_func(*args, **kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/djblets/webapi/decorators.py",
> line 156, in _call
> return view_func(*args, **kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/djblets/webapi/decorators.py",
> line 322, in _validate
> return view_func(*args, **new_kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/reviewboard/webapi/resources/base_review.py",
> line 290, in update
> return self.update_review(request, review, *args, **kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/reviewboard/webapi/resources/review.py",
> line 121, in update_review
> return super(ReviewResource, self).update_review(
> File
> "/usr/local/lib/python3.10/dist-packages/reviewboard/webapi/resources/base_review.py",
> line 389, in update_review
> review.publish(user=request.user,
> File
> "/usr/local/lib/python3.10/dist-packages/reviewboard/reviews/models/review.py",
> line 420, in publish
> review_published.send(sender=self.__class__,
> File
> "/usr/local/lib/python3.10/dist-packages/django/dispatch/dispatcher.py",
> line 180, in send
> return [
> File
> "/usr/local/lib/python3.10/dist-packages/django/dispatch/dispatcher.py",
> line 181, in <listcomp>
> (receiver, receiver(signal=self, sender=sender, **named))
> File
> "/usr/local/lib/python3.10/dist-packages/reviewboard/notifications/email/signal_handlers.py",
> line 131, in send_review_published_mail
> message, sent = send_email(prepare_review_published_mail,
> File
> "/usr/local/lib/python3.10/dist-packages/reviewboard/notifications/email/utils.py",
> line 290, in send_email
> message = email_builder(**kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/reviewboard/notifications/email/message.py",
> line 405, in prepare_review_published_mail
> return prepare_base_review_request_mail(
> File
> "/usr/local/lib/python3.10/dist-packages/reviewboard/notifications/email/message.py",
> line 237, in prepare_base_review_request_mail
> return EmailMessage(subject=subject.strip(),
> File
> "/usr/local/lib/python3.10/dist-packages/reviewboard/notifications/email/message.py",
> line 55, in __init__
> super(EmailMessage, self).__init__(
> File "/usr/local/lib/python3.10/dist-packages/djblets/mail/message.py",
> line 234, in __init__
> not is_email_allowed_by_dmarc(parsed_from_email))):
> File "/usr/local/lib/python3.10/dist-packages/djblets/mail/dmarc.py",
> line 308, in is_email_allowed_by_dmarc
> dmarc_record = get_dmarc_record(hostname)
> File "/usr/local/lib/python3.10/dist-packages/djblets/mail/dmarc.py",
> line 255, in get_dmarc_record
> record = _fetch_dmarc_record(hostname=hostname,
> File "/usr/local/lib/python3.10/dist-packages/djblets/mail/dmarc.py",
> line 211, in _fetch_dmarc_record
> record_str = cache_memoize(
> File "/usr/local/lib/python3.10/dist-packages/djblets/cache/backend.py",
> line 965, in cache_memoize
> data = lookup_callable()
> File "/usr/local/lib/python3.10/dist-packages/djblets/mail/dmarc.py",
> line 213, in <lambda>
> lambda: _fetch_record(),
> File "/usr/local/lib/python3.10/dist-packages/djblets/mail/dmarc.py",
> line 202, in _fetch_record
> return dns.resolver.resolve('_dmarc.%s' % hostname,
> File "/usr/local/lib/python3.10/dist-packages/dns/resolver.py", line
> 1193, in resolve
> return get_default_resolver().resolve(qname, rdtype, rdclass, tcp,
> source,
> File "/usr/local/lib/python3.10/dist-packages/dns/resolver.py", line
> 1066, in resolve
> timeout = self._compute_timeout(start, lifetime,
> File "/usr/local/lib/python3.10/dist-packages/dns/resolver.py", line
> 879, in _compute_timeout
> raise LifetimeTimeout(timeout=duration, errors=errors)
> dns.resolver.LifetimeTimeout: The resolution lifetime expired after 5.402
> seconds: Server 127.0.0.53 UDP port 53 answered The DNS operation timed
> out.; Server 127.0.0.53 UDP port 53 answered The DNS operation timed out.;
> Server 127.0.0.53 UDP port 53 answered The DNS operation timed out.
> 2023-05-16 13:28:58,654 - ERROR - None - E1377138 -
> /api/review-requests/4045/reviews/31228/ - django.request - Internal Server
> Error: /api/review-requests/4045/reviews/31228/
> Traceback (most recent call last):
> File
> "/usr/local/lib/python3.10/dist-packages/django/core/handlers/exception.py",
> line 47, in inner
> response = get_response(request)
> File
> "/usr/local/lib/python3.10/dist-packages/django/core/handlers/base.py",
> line 181, in _get_response
> response = wrapped_callback(request, *callback_args, **callback_kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/django/views/decorators/cache.py",
> line 44, in _wrapped_view_func
> response = view_func(request, *args, **kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/django/views/decorators/vary.py",
> line 20, in inner_func
> response = func(*args, **kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/djblets/webapi/resources/base.py",
> line 232, in __call__
> result = self.call_method_view(
> File
> "/usr/local/lib/python3.10/dist-packages/reviewboard/webapi/base.py", line
> 348, in call_method_view
> return super(WebAPIResource, self).call_method_view(
> File
> "/usr/local/lib/python3.10/dist-packages/djblets/webapi/resources/mixins/api_tokens.py",
> line 62, in call_method_view
> return super(ResourceAPITokenMixin, self).call_method_view(
> File
> "/usr/local/lib/python3.10/dist-packages/djblets/webapi/resources/mixins/oauth2_tokens.py",
> line 99, in call_method_view
> return super(ResourceOAuth2TokenMixin, self).call_method_view(
> File
> "/usr/local/lib/python3.10/dist-packages/djblets/webapi/resources/base.py",
> line 429, in call_method_view
> return view(request, *args, **kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/djblets/webapi/resources/base.py",
> line 545, in put
> return self.update(request, *args, **kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/djblets/webapi/decorators.py",
> line 156, in _call
> return view_func(*args, **kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/djblets/util/decorators.py", line
> 47, in _call
> f = augmented_func(*args, **kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/djblets/webapi/decorators.py",
> line 156, in _call
> return view_func(*args, **kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/reviewboard/webapi/decorators.py",
> line 170, in _check
> return view_func(*args, **kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/djblets/webapi/decorators.py",
> line 156, in _call
> return view_func(*args, **kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/djblets/webapi/decorators.py",
> line 177, in _checklogin
> return view_func(*args, **kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/djblets/webapi/decorators.py",
> line 156, in _call
> return view_func(*args, **kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/djblets/webapi/decorators.py",
> line 156, in _call
> return view_func(*args, **kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/djblets/webapi/decorators.py",
> line 322, in _validate
> return view_func(*args, **new_kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/reviewboard/webapi/resources/base_review.py",
> line 290, in update
> return self.update_review(request, review, *args, **kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/reviewboard/webapi/resources/review.py",
> line 121, in update_review
> return super(ReviewResource, self).update_review(
> File
> "/usr/local/lib/python3.10/dist-packages/reviewboard/webapi/resources/base_review.py",
> line 389, in update_review
> review.publish(user=request.user,
> File
> "/usr/local/lib/python3.10/dist-packages/reviewboard/reviews/models/review.py",
> line 420, in publish
> review_published.send(sender=self.__class__,
> File
> "/usr/local/lib/python3.10/dist-packages/django/dispatch/dispatcher.py",
> line 180, in send
> return [
> File
> "/usr/local/lib/python3.10/dist-packages/django/dispatch/dispatcher.py",
> line 181, in <listcomp>
> (receiver, receiver(signal=self, sender=sender, **named))
> File
> "/usr/local/lib/python3.10/dist-packages/reviewboard/notifications/email/signal_handlers.py",
> line 131, in send_review_published_mail
> message, sent = send_email(prepare_review_published_mail,
> File
> "/usr/local/lib/python3.10/dist-packages/reviewboard/notifications/email/utils.py",
> line 290, in send_email
> message = email_builder(**kwargs)
> File
> "/usr/local/lib/python3.10/dist-packages/reviewboard/notifications/email/message.py",
> line 405, in prepare_review_published_mail
> return prepare_base_review_request_mail(
> File
> "/usr/local/lib/python3.10/dist-packages/reviewboard/notifications/email/message.py",
> line 237, in prepare_base_review_request_mail
> return EmailMessage(subject=subject.strip(),
> File
> "/usr/local/lib/python3.10/dist-packages/reviewboard/notifications/email/message.py",
> line 55, in __init__
> super(EmailMessage, self).__init__(
> File "/usr/local/lib/python3.10/dist-packages/djblets/mail/message.py",
> line 234, in __init__
> not is_email_allowed_by_dmarc(parsed_from_email))):
> File "/usr/local/lib/python3.10/dist-packages/djblets/mail/dmarc.py",
> line 308, in is_email_allowed_by_dmarc
> dmarc_record = get_dmarc_record(hostname)
> File "/usr/local/lib/python3.10/dist-packages/djblets/mail/dmarc.py",
> line 255, in get_dmarc_record
> record = _fetch_dmarc_record(hostname=hostname,
> File "/usr/local/lib/python3.10/dist-packages/djblets/mail/dmarc.py",
> line 211, in _fetch_dmarc_record
> record_str = cache_memoize(
> File "/usr/local/lib/python3.10/dist-packages/djblets/cache/backend.py",
> line 965, in cache_memoize
> data = lookup_callable()
> File "/usr/local/lib/python3.10/dist-packages/djblets/mail/dmarc.py",
> line 213, in <lambda>
> lambda: _fetch_record(),
> File "/usr/local/lib/python3.10/dist-packages/djblets/mail/dmarc.py",
> line 202, in _fetch_record
> return dns.resolver.resolve('_dmarc.%s' % hostname,
> File "/usr/local/lib/python3.10/dist-packages/dns/resolver.py", line
> 1193, in resolve
> return get_default_resolver().resolve(qname, rdtype, rdclass, tcp,
> source,
> File "/usr/local/lib/python3.10/dist-packages/dns/resolver.py", line
> 1066, in resolve
> timeout = self._compute_timeout(start, lifetime,
> File "/usr/local/lib/python3.10/dist-packages/dns/resolver.py", line
> 879, in _compute_timeout
> raise LifetimeTimeout(timeout=duration, errors=errors)
> dns.resolver.LifetimeTimeout: The resolution lifetime expired after 5.402
> seconds: Server 127.0.0.53 UDP port 53 answered The DNS operation timed
> out.; Server 127.0.0.53 UDP port 53 answered The DNS operation timed out.;
> Server 127.0.0.53 UDP port 53 answered The DNS operation timed out.
>
>
>
> --
> Supercharge your Review Board with Power Pack:
> https://www.reviewboard.org/powerpack/
> Want us to host Review Board for you? Check out RBCommons:
> https://rbcommons.com/
> Happy user? Let us know! https://www.reviewboard.org/users/
> ---
> You received this message because you are subscribed to the Google Groups
> "Review Board Community" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to reviewboard+unsubscr...@googlegroups.com.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/reviewboard/e9f68f8d-72c8-42da-beac-db61a15593aen%40googlegroups.com
> <https://groups.google.com/d/msgid/reviewboard/e9f68f8d-72c8-42da-beac-db61a15593aen%40googlegroups.com?utm_medium=email&utm_source=footer>
> .
>
--
Supercharge your Review Board with Power Pack:
https://www.reviewboard.org/powerpack/
Want us to host Review Board for you? Check out RBCommons:
https://rbcommons.com/
Happy user? Let us know! https://www.reviewboard.org/users/
---
You received this message because you are subscribed to the Google Groups
"Review Board Community" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to reviewboard+unsubscr...@googlegroups.com.
To view this discussion on the web visit
https://groups.google.com/d/msgid/reviewboard/CAFS3VNUyyUBDrnQJiBcje5SZh94fLHOcuvZFW_fu%3Dvw_16AV%2BQ%40mail.gmail.com.
