314383 - unsubscribing from a newsgroup does not remove it's downloaded data

Status: RESOLVED WORKSFORME

(MailNews Core :: Backend, defect)

Description

[Ryan Hill]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8) Gecko/20051029 Firefox/1.5
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8) Gecko/20051029 Firefox/1.5

when you unsubscribe from a newsgroup, its .dat and .msf files remain indefinitely.  this has the potential to waste a lot of disk space on useless data.  i found i had 160mb worth of unsubscribed newgroup info in my profile that could have been freed.

to reproduce: (using news.gmane.org as an example)

- subscribe to eg. gmane.linux.kernel
- download the last 10000 headers and bodies
- unsubscribe from the newsgroup
- notice that gmane.linux.kernel.dat and gmane.linux.kernel.msf are taking up 50mb of space in .thunderbird/profile/News/news.gmane.org

i suppose this might be useful if you ever want to resubscribe, since it would save you from downloading everything again.  maybe a 'Also delete saved data' checkbox on the confirmation dialog could be added.

Reproducible: Always

Steps to Reproduce:

Comment 1

[zug_treno]

Related to Core bug 185348?

Comment 2

[steg]

This also happens with SeaMonkey on Windows, and if I remember correctly, on Mac OS X, too. Maybe some corrections to Hardware, OS and Product fields would be appropriate.

Comment 3

[Hartmut Welpmann [:welpy-cw]]

When unsubscribing a newsgroup with current Thunderbird versions, the message database (.msf) and the mailbox file are getting removed. For the filter file (.dat) we still have bug 185348.