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Tassilo Horn c708851b5e Fixing slowness of following Gnus links to IMAP articles 
David Maus <dmaus@ictsoc.de> writes:

Hi David,

>>I'm trying to add a workaround to org-gnus.el which should save the
>>slowness of querying the IMAP server by looking up the article number
>>in the group's .overview file.  But since I don't have nnimap groups,
>>we have to play some question & answer game. ;-)
>
>>Please apply this patch and set
>>`org-gnus-nnimap-query-article-no-from-file' to t.
>
> The patch does not work: It calls `nnimap-retrieve-headers-from-file'
> without the required arguments (group server)

Argh, stupid me!  Here's a corrected patch.

--8<---------------cut here---------------start------------->8---
--8<---------------cut here---------------end--------------->8---

> and the headers are not fetched because
> `nnimap-retrieve-headers-from-file' looks for a NOV cache file, not
> .overview.

Aren't overview file and NOV file synonyms?

Hm, anyway.  In the Gnus docs I've found this paragraph:

,----[ (info "(gnus)IMAP") ]
| `nnimap-nov-is-evil'
|      Never generate or use a local NOV database. Defaults to the value
|      of `gnus-agent'.
|
|      Using a NOV database usually makes header fetching much faster,
|      but it uses the `UID SEARCH UID' command, which is very slow on
|      some servers (notably some versions of Courier). Since the Gnus
|      Agent caches the information in the NOV database without using the
|      slow command, this variable defaults to true if the Agent is in
|      use, and false otherwise.
`----

So maybe we're trying to replace one slow command with another slow
command.  Especially, the fact that Courier is explicitly mentioned is a
bit frustrating.  Well, let's try it out and see if it helps a bit.

> Alas: I couldn't figure out how to enable NOV cache for my nnimap
> group.  Setting `nnimap-nov-is-evil' to nil didn't help.

This variable defaults to the value of `gnus-agent', so I assume the
agent has to be enabled (which is default), and most probably the IMAP
server has to be agentized as well.  That can be done in the server
buffer (`^' in *Group*), and then:

,----[ (info "(gnus)Server Agent Commands") ]
| `J a'
|      Add the current server to the list of servers covered by the Gnus
|      Agent (`gnus-agent-add-server').
`----

Bye,
Tassilo
 		2010-07-31 10:34:35 +02:00
..
ob-C.el ob-C: more generous regular expression for matching main call 2010-07-25 12:32:48 -06:00
ob-R.el ob-R: improved prompt-stripping regexp thanks to Charles C. Berry 2010-07-28 08:05:30 -06:00
ob-asymptote.el Mention release 7.01 on the website, push release number to 7.01trans 2010-07-19 08:33:24 +02:00
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ob-keys.el ob-keys: org-babel-load-in-session now using "l", org-babel-lob-ingest switched to "i" 2010-07-30 11:02:42 -06:00
ob-latex.el Mention release 7.01 on the website, push release number to 7.01trans 2010-07-19 08:33:24 +02:00
ob-ledger.el ob-ledger: Babel support for the ledger accounting system 2010-07-23 09:23:44 -07:00
ob-lob.el ob-lob: fixed error in lob regexp -- it wasn't matching lob lines w/o indices 2010-07-22 16:20:08 -07:00
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ob-sqlite.el ob-sqlite: now inserts string arguments w/o quotes 2010-07-28 07:31:39 -06:00
ob-table.el ob-table: babel scripts called from tables can accept ranges 2010-07-21 16:11:49 -07:00
ob-tangle.el Resolve a compiler warning 2010-07-28 20:50:19 -04:00
ob.el babel: accept explicit lists of colnames and/or rownames 2010-07-21 11:19:50 -07:00
org-agenda.el Merge branch 't/patch157' 2010-07-28 02:26:57 -04:00
org-archive.el Mention release 7.01 on the website, push release number to 7.01trans 2010-07-19 08:33:24 +02:00
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org-capture.el Added a missing call to (goto-char (point-min)) 2010-07-28 21:05:50 -04:00
org-clock.el Mention release 7.01 on the website, push release number to 7.01trans 2010-07-19 08:33:24 +02:00
org-colview-xemacs.el Estimate ranges in column view 2010-07-19 13:56:17 +02:00
org-colview.el Column view: Fix indentation problem when org-indent-mode is active 2010-07-22 10:43:48 +02:00
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org-freemind.el Mention release 7.01 on the website, push release number to 7.01trans 2010-07-19 08:33:24 +02:00
org-gnus.el Fixing slowness of following Gnus links to IMAP articles 2010-07-31 10:34:35 +02:00
org-habit.el Mention release 7.01 on the website, push release number to 7.01trans 2010-07-19 08:33:24 +02:00
org-html.el HTML export: Fix inlining images 2010-07-21 16:04:33 +02:00
org-icalendar.el iCalendar export: Implement alarms 2010-07-21 09:47:57 +02:00
org-id.el Autoload org-id-store-link 2010-07-21 18:37:34 +02:00
org-indent.el Mention release 7.01 on the website, push release number to 7.01trans 2010-07-19 08:33:24 +02:00
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org-latex.el improve latex listings code block name export 2010-07-21 10:39:53 -07:00
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org-mac-message.el Mention release 7.01 on the website, push release number to 7.01trans 2010-07-19 08:33:24 +02:00
org-macs.el Make org-capture use `org-default-notes-file' if the file is not specified 2010-07-20 09:05:31 +02:00
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org-publish.el Publish: Better error messages if important information is missing 2010-07-22 11:45:04 +02:00
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org-table.el fix infinite loop in csv table import 2010-07-20 09:28:22 +02:00
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org-wl.el Provide link property for message-id without angle brackets 2010-07-31 09:47:33 +02:00
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org.el org-insert-time-stamp: fix value of org-last-inserted-timestamp 2010-07-31 10:31:30 +02:00