Versions Compared

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.
Comment: Fixed a minor typo and removed old FAQ wizard last update.

4.76. I can't access one of my lists via the web interface. One of my lists is not sending mail. List locked.

Problems that affect only one list in an installation can be caused by stale locks for the list.

A list lock is implemented as a pair of files in mailman's locks/ directory. One file is named '<listname>.lock' and the other is named '<listname>.lock.<hostname>.<pid>.<seq>' where

...

<listname>

...

is

...

the

...

name

...

of

...

the

...

list

...


<hostname>

...

is

...

the

...

name

...

of

...

the

...

host

...

that

...

set

...

the

...

lock

...


<pid>

...

is

...

the

...

process

...

id

...

of

...

the

...

process

...

on <hostname> that set the lock
<seq> is a sequence number

The contents of both files (actually they are the same file with two names - hard linked) is

...

/path/to/locks/<listname>.lock.<hostname>.<pid>.<seq>

...

There may be additional files named '<listname>.lock.<hostname>.<pid>.<seq>' for the same listname. These represent lock requests waiting for the lock to be relinquished.

...

Note that pre-2.1.7 Mailman could stop sending to a single list because of a problem with a message in the lists/<listname>/digest.mbox file. This will not affect the web interface for the list, but if this is why the list is not sending, there will be a 'shunting' message and a traceback of an exception involving Mailman/Handlers/ToDigest.py in Mailman's 'error' log for each list post. See the post at http://mail.python.org/pipermail/mailman-users/2007-December/059426.html and other posts referenced by it for more information, but note that this post only discusses one specific error. There are many other possible message defects that can cause a different exception with the same end result.

Last changed on Wed Apr 2 00:44:06 2008 by Mark Sapiro
Converted from the Mailman FAQ Wizard

This is one of many Frequently Asked Questions.