#1255 Subscriber "disappears" after subscription

[Massimo Lanfranconi]

Mailman 2.1.11
Python 2.4.4
OS Solaris 2.11

Hi,

I have been able to reproduce this bug consistently by running the replicate_bug script:

replicate _bug is the following:

#!/bin/sh
/usr/local/mailman/bin/rmlist testlist1
/usr/local/mailman/bin/rmlist testlist2
/usr/local/mailman/bin/rmlist testlist3
/usr/local/mailman/bin/rmlist testlist4
/usr/local/mailman/bin/rmlist testlist5
/usr/local/mailman/bin/rmlist testlist6
/usr/local/mailman/bin/newlist -q -e url.domain.com testlist1 list-admin@domain.com testpwd
/usr/local/mailman/bin/newlist -q -e url.domain.com testlist2 list-admin@domain.com testpwd
/usr/local/mailman/bin/newlist -q -e url.domain.com testlist3 list-admin@domain.com testpwd
/usr/local/mailman/bin/newlist -q -e url.domain.com testlist4 list-admin@domain.com testpwd
/usr/local/mailman/bin/newlist -q -e url.domain.com testlist5 list-admin@domain.com testpwd
/usr/local/mailman/bin/newlist -q -e url.domain.com testlist6 list-admin@domain.com testpwd

echo "foo@bar.com" | /usr/local/mailman/bin/add_members -r - testlist1
echo "foo@bar.com" | /usr/local/mailman/bin/add_members -r - testlist2
echo "foo@bar.com" | /usr/local/mailman/bin/add_members -r - testlist3
echo "foo@bar.com" | /usr/local/mailman/bin/add_members -r - testlist4
echo "foo@bar.com" | /usr/local/mailman/bin/add_members -r - testlist5
echo "foo@bar.com" | /usr/local/mailman/bin/add_members -r - testlist6
echo "boo@foo.com" | /usr/local/mailman/bin/add_members -r - testlist1
echo "boo@foo.com" | /usr/local/mailman/bin/add_members -r - testlist2
echo "boo@foo.com" | /usr/local/mailman/bin/add_members -r - testlist3
echo "boo@foo.com" | /usr/local/mailman/bin/add_members -r - testlist4
echo "boo@foo.com" | /usr/local/mailman/bin/add_members -r - testlist5
echo "boo@foo.com" | /usr/local/mailman/bin/add_members -r - testlist6

After a short wait the following output is received:

Subscribed: foo@bar.com
Subscribed: foo@bar.com
Subscribed: foo@bar.com
Subscribed: foo@bar.com
Subscribed: foo@bar.com
Subscribed: foo@bar.com
Subscribed: boo@foo.com
Subscribed: boo@foo.com
Subscribed: boo@foo.com
Subscribed: boo@foo.com
Subscribed: boo@foo.com
Subscribed: boo@foo.com

foo@bar.com receives 6 confirmation emails, as boo@foo.com does. So far so good.

At this point testlist1-6 each should contain 2 subscribers: foo@bar.com and boo@foo.com

BUT

/usr/local/mailman/bin/list_members testlist1
/usr/local/mailman/bin/list_members testlist2
/usr/local/mailman/bin/list_members testlist3
/usr/local/mailman/bin/list_members testlist4
/usr/local/mailman/bin/list_members testlist5
/usr/local/mailman/bin/list_members testlist6

invariably produce some random combination in which one or more of the subscribers are missing:
for example:
boo@foo.com
foo@bar.com
foo@bar.com
boo@foo.com
foo@bar.com
foo@bar.com
foo@bar.com
boo@foo.com
foo@bar.com

in which three instances of boo@foo.com are missing...

No Errors in any Mailman log.
Thanks in advance for your help. Please let me know if you need additional details.
Regards,
Max

[Mark Sapiro]

Logged In: YES
user_id=1123998
Originator: NO

Thanks for the script. It was helpful in finding the problem. The analysis of the cause of the problem and potential fix is at <http://mail.python.org/pipermail/mailman-developers/2008-August/020330.html>.