Hello,
occasionally we face the problem "The content of this message was lost."
when handling a message on hold.
We use the mailman3 packages on Debian 12: 3.3.8-2~deb12u2
GNU Mailman 3.3.8 (Tom Sawyer)
Python 3.11.2 (main, Nov 30 2024, 21:22:50) [GCC 12.2.0]
with postgresql, exim and Apache httpd on the same machine.
To get closer to this problem we made 2 changes:
/usr/lib/python3/dist-packages/mailman/app/moderator.py
def _lost_message(mlist, subject, sender, message_id):
# Create a substitute for a message not found in the message store.
text = _("""\
The content of this message was lost. It was probably cross-posted to
multiple lists and previously handled on another list.
""")
+ # Don’t send an empty message to all members in case this event occurs.
+ # raise an exception instead:
+ raise Exception("_lost_message",subject, sender, message_id)
/usr/lib/python3/dist-packages/mailman/runners/task.py
def _evict_pendings(self):
…
messages = getUtility(IMessageStore)
for msg in messages.messages:
# msg can be None if file is already removed.
if msg is not None:
mid = msg.get('message-id')
if mid not in mids:
messages.delete_message(mid)
# 2024-12-11 fri: Debug inserted
+ tlog.debug('Task runner deleted message %s', mid)
count += 1
tlog.info('Task runner deleted %d orphaned messages', count)
So let’s see what happens:
A message sent to one list is set on hold:
exim mainlog:
2025-01-28 14:10:23 1tclMF-00H6cW-1s <= u...@s2024.tu-chemnitz.de
H=vittal.hrz.tu-chemnitz.de (mail.tu-chemnitz.de)
[2001:638:911:b01:134:109:133:32] P=esmtps
X=TLS1.3:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM:256 CV=no K
S=9058 id=2f972b-6798d700-9f-5b841500@14907502
2025-01-28 14:10:23 1tclMF-00H6cW-1s => fsr-...@lists.tu-chemnitz.de
R=lists_mailman T=mailman3_transport H=localhost [::1] C="250 Ok"
2025-01-28 14:10:23 1tclMF-00H6cW-1s Completed
vette.log
Jan 28 14:10:24 2025 (2602) HOLD: fsr-...@lists.tu-chemnitz.de post from
u...@s2024.tu-chemnitz.de held,
message-id=<2f972b-6798d700-9f-5b841500@14907502>: The message is not from a
list member
A task runner deleted the message 5 seconds later:
task.log
Jan 28 14:10:29 2025 (2609) Task runner deleted message
<2f972b-6798d700-9f-5b841500@14907502>
Jan 28 14:10:29 2025 (2609) Task runner deleted 1 orphaned messages
Later an owner/moderator want to do a moderation action:
mailman.log:
2025-01-28 17:40:54 [FALCON] [ERROR] POST
/3.1/lists/fsr-...@lists.tu-chemnitz.de/held/7544 => Traceback (most recent
call last):
File "falcon/app.py", line 365, in falcon.app.App.__call__
File "/usr/lib/python3/dist-packages/mailman/rest/post_moderation.py",
line 155, in on_post
handle_message(self._mlist, request_id, **arguments)
File "/usr/lib/python3/dist-packages/mailman/app/moderator.py", line 144,
in handle_message
msg = _lost_message(mlist, subject, sender, message_id)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3/dist-packages/mailman/app/moderator.py", line 104,
in _lost_message
raise Exception("_lost_message",subject, sender, message_id)
Exception: ('_lost_message', 'Re: [Fsr-hsw] ...',
'u...@s2024.tu-chemnitz.de', '<2f972b-6798d700-9f-5b841500@14907502>')
Do you have any suggestions what we can do to find the reason, why the task
runner deletes the message?
Or any other hints …
Thanks and kind regards
Frank
--
Frank Richter, Chemnitz University of Technology, Germany
_______________________________________________
Mailman-users mailing list -- mailman-users@mailman3.org
To unsubscribe send an email to mailman-users-le...@mailman3.org
https://lists.mailman3.org/mailman3/lists/mailman-users.mailman3.org/
Archived at:
https://lists.mailman3.org/archives/list/mailman-users@mailman3.org/message/ZCUDORR7JGHAWDUESPLTYM75P5L7Z277/
This message sent to arch...@mail-archive.com
