Path: csiph.com!fu-berlin.de!uni-berlin.de!not-for-mail
From: "Loris Bennett" <loris.bennett@fu-berlin.de>
Newsgroups: gnu.emacs.gnus
Subject: Re: Search finds no messages
Date: Tue, 08 Aug 2023 11:07:45 +0200
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Hi Gijs,

Gijs Hillenius <gijs@hillenius.net> writes:

> On  8 August 2023 10:22 Loris Bennett, wrote:
>
>> Hi,
>>
>> I have just upgraded my Debian system from 11 to 12 and now, when I try
>> to search within a group in the *Group* buffer with 'G G' I always get
>> an error like
>>
>>   Group nnselect:nnselect-87zg32gdj4.fsf contains no messages
>>
>> even when I know that there are messages in the group and that some of
>> these contain the string I searched for.  If I enter the group, messages
>> are displayed.
>>
>> Does anyone know what the problems might be or at least where I should
>> start looking in order to debug the problem?
>
> Hello
>
> We probably need more info. Did something else change ?

Not that I am aware of, but that is a fairly major change :-)

> What mail
> backend are you using?

  nnimap

but I also have the problem in the nntp groups, although with those I
seen the following in the *Messages* buffer:

  nnselect-run: gnus-search-run-query on ((search-query-spec (query
  . loris) (raw)) (search-group-spec (nntp:news.fu-berlin.de
  gnu.emacs.gnus))) gave error (gnus-search-config-error
  gnus-search-config-error No search engine configured for
  nntp:news.fu-berlin.de)

Indeed there is no search engine configured for nntp:

  (nntp "fu_news"
        (nntp-address "news.fu-berlin.de")
        (remove-prefix nntp)
        (gnus-message-archive-group "nnimap+fu_exchange:Gesendete Elemente"))

whereas for imap the search engine is configured 

  (nnimap "fu_exchange"
          (nnir-search-engine imap)
          (remove-prefix "nnimap")
          (nnimap-address "mail.zedat.fu-berlin.de")
          (nnimap-record-commands t)
          (nnimap-inbox INBOX)
          (gnus-message-archive-group "nnimap+fu_exchange:Gesendete Elemente"))

So it seems that for IMAP the search engine is configured but not
working and for NNTP it is just not configured.

> You suspect a link to Debian 12. Debian Bookworm comes with Emacs 28.2.
> If you think that is it, how about going back to 27.1 ? 
>
> http://snapshot.debian.org/binary/emacs/ 
>

Well, before I go down that road I shall check whether the same problem
occurs on my other laptop, which is at work, but which I also updated
and which uses the same Emacs config.

Cheers,

Loris

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