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From: Michael Lamoureux <lamour@engin.umich.edu>
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Subject: Re: rebuilding .overview
Date: 11 Feb 1997 15:21:25 -0500
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Original-To: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
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 "lars" == Lars Magne Ingebrigtsen <larsi@ifi.uio.no> writes:

lars> Michael Lamoureux <lamour@engin.umich.edu> writes:
>> Also, after running the above function all of the new messages
>> (there were 105 new messages, which is how I noticed there was a
>> problem in the first place), all of the messages that were added
>> back into the .overview file were given a mark of read instead of
>> unread.  I had to enter the group with C-u Ret to see them.  Is
>> that the best default mark to have for such an operation?

lars> I can't explain this.  Regenerating the .overview files doesn't
lars> affect article readedness at all -- all that's being handled by
lars> Gnus, and Gnus knows nothing about .overview files and stuff
lars> like that.

Ok, then I clearly don't understand as much as I thought I did.  I'll
tell you what happened without any assumptions of understanding what
happened, and you can figure it out.

1) the topic buffer reported 105 unread messages in an NNML group.
2) upon entering the group, I found only about 20-25 messages.  I read
   them, and then got out of the group.
3) I reentered the group with C-u RET, and could not find messages
   which I could see in the actual mail directory.
4) I looked at the .overview file, and noticed that a large chunk of
   it had been overwritten with nulls.
5) I looked for a function to rebuild it, and then ran M-x
   generate-nov-databases.
6) I reentered the group.  Nothing.
7) I got out and reentered with C-u RET again, and found all of the
   messages that I had never seen, but they all had a "O" mark.
8) Then I posted the above message.


fyi,
Michael