user/dev discussion of public-inbox itself
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From: Eric Wong <e@80x24.org>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: meta@public-inbox.org
Subject: Re: Q: Did you do something to message number recently?
Date: Mon, 24 Jun 2019 23:42:12 +0000
Message-ID: <20190624234212.j7ghrejyv7ts7y2u@dcvr> (raw)
In-Reply-To: <877e9avbh2.fsf@xmission.com>

"Eric W. Biederman" <ebiederm@xmission.com> wrote:
> The add method computes the number using num_for, which uses
> Msgmpa::mid_insert.
> 
> Short of the sequence number for msgmap getting scrambled I don't
> see how that can go wrong.  Sigh.

That seems to be what went wrong with "INSERT OR IGNORE"

cf. https://public-inbox.org/meta/20190624233809.1721-1-e@80x24.org/

> I will have to instrument my client, and see if that will give
> me a clue what is going on.

I guess your client ends up seeing the same message
over-and-over again like -watch does?

> I think most of my previous work was all in the index rebuild path.
> Which may be why we don't have a regression test catching this.

Yeah, this isn't a new bug at all.  I didn't notice since I
mainly use w3m or (neo)mutt for NNTP and didn't look too closely
at NNTP article numbers.  lynx makes it apparent messages are
missing: lynx news.public-inbox.org/inbox.comp.lib.glibc.alpha

  reply	other threads:[~2019-06-24 23:42 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-24 15:59 Eric W. Biederman
2019-06-24 16:34 ` Eric Wong
2019-06-24 17:33   ` Eric Wong
2019-06-24 22:56     ` Eric W. Biederman
2019-06-24 23:42       ` Eric Wong [this message]
2019-06-25 12:01         ` Eric W. Biederman
2019-06-25 17:51           ` Eric Wong
2019-06-24 23:38 ` [PATCH] msgmap: mid_insert: use plain "INSERT" to detect duplicates Eric Wong
2019-06-25  3:48   ` Eric Wong

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