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Matthias Andree | 2 Sep 2009 08:39
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leafnode 1.11.7 unsubscribes low-traffic groups with slrn?

Greetings,

this is a question to the slrn users reading news from leafnode 1.11.7:

Have you ever observed leafnode unsubscribing you from low-traffic groups
(i. e. stop fetching these groups)?

How exactly does slrn check for new news in newsgroups, which NNTP
commands does it use (a debug log from either slrn or leafnode might
tell)? If slrn can be reconfigured to use different NNTP commands, which
others are available?

I've recently become aware (through a de.comm.software.newsserver post)
that people still started using the noexpire scripts that are part of the
Debian package, but I believed the last bug in the "unsubscribe
low-traffic groups" was fixed 5½ years ago in the 1.9.52 release.

TIA

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Matthias Andree
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Robert Grimm | 4 Sep 2009 10:10
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Re: leafnode 1.11.7 unsubscribes low-traffic groups with slrn?

Matthias Andree <matthias.andree@...> wrote:
> Greetings,

> this is a question to the slrn users reading news from leafnode 1.11.7:

> Have you ever observed leafnode unsubscribing you from low-traffic groups
> (i. e. stop fetching these groups)?

> How exactly does slrn check for new news in newsgroups, which NNTP
> commands does it use (a debug log from either slrn or leafnode might
> tell)? If slrn can be reconfigured to use different NNTP commands, which
> others are available?

The default ist to use GROUP for every subscribed group in slrn, e.g.
read_active defaults to 0. If read_active is set, slrn only issues LIST
and NEWGROUPS and GROUP only when entering a group.

I will be able to do some tests over the weekend and provide some logs.

> I've recently become aware (through a de.comm.software.newsserver post)
> that people still started using the noexpire scripts that are part of the
> Debian package, but I believed the last bug in the "unsubscribe
> low-traffic groups" was fixed 5½ years ago in the 1.9.52 release.

Currently I am trying to take over maintainership in Debian. Do you think the
script should be removed? I have to confess that I never had use for it.

I am sorry that I didn't contact you before on this behalf, my plan was to send
a mail to you after the end of the holidays in Bavaria.
(Continue reading)

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Matthias Andree | 4 Sep 2009 10:59
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Re: leafnode 1.11.7 unsubscribes low-traffic groups with slrn?

Robert Grimm schrieb:
> Matthias Andree <matthias.andree@...> wrote:
>> Greetings,
> 
>> this is a question to the slrn users reading news from leafnode 1.11.7:
> 
>> Have you ever observed leafnode unsubscribing you from low-traffic groups
>> (i. e. stop fetching these groups)?
> 
>> How exactly does slrn check for new news in newsgroups, which NNTP
>> commands does it use (a debug log from either slrn or leafnode might
>> tell)? If slrn can be reconfigured to use different NNTP commands, which
>> others are available?
> 
> The default ist to use GROUP for every subscribed group in slrn, e.g.
> read_active defaults to 0. If read_active is set, slrn only issues LIST
> and NEWGROUPS and GROUP only when entering a group.

Hm. The latter cannot possibly work with leafnode, because it's too unspecific.

We could work around that and pretend LIST refreshes interest in all subscribed
groups, but I'm not sure if that's harmful and prevents unsubscriptions, so I'm
not going to change 1.X for that matter.

I'll rather document for 1.11.8 that slrn should be used with read_active at its
default setting of 0.

> I will be able to do some tests over the weekend and provide some logs.

Thank you.
(Continue reading)

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Mark Brown | 4 Sep 2009 12:23
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Re: leafnode 1.11.7 unsubscribes low-traffic groups with slrn?

On Fri, Sep 04, 2009 at 10:10:50AM +0200, Robert Grimm wrote:

> Currently I am trying to take over maintainership in Debian. Do you think the

You are?
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Peter J Ross | 4 Sep 2009 23:10
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Re: leafnode 1.11.7 unsubscribes low-traffic groups with slrn?

Matthias Andree wrote:
> Robert Grimm schrieb:
>> The default ist to use GROUP for every subscribed group in slrn, e.g.
>> read_active defaults to 0. If read_active is set, slrn only issues LIST
>> and NEWGROUPS and GROUP only when entering a group.

slrn always starts the session with MODE READER, XOVER, XHDR Path, LIST 
OVERVIEW.FMT and NEWGROUPS. It then uses either GROUP once for each 
subscribed group or LIST, depending on the read_active setting. Then, on 
entering a group, XHDR or HEAD may be called for scoring purposes, 
depending on the slrn settings and the responses received when probing 
with XOVER, XHDR Path and LIST OVERVIEW.FMT.

> Hm. The latter cannot possibly work with leafnode, because it's too unspecific.

It works if one wishes to drop empty groups even if they're marked as 
subscribed, but that's probably not what most users want to happen. 
Should slrn be modified to always use GROUP for all subscribed groups?

> We could work around that and pretend LIST refreshes interest in all subscribed
> groups, but I'm not sure if that's harmful and prevents unsubscriptions, so I'm
> not going to change 1.X for that matter.

I don't see how leafnode could tell which groups slrn marks as 
subscribed unless slrn distinguishes them somehow from other groups. If 
a change is needed, it's needed in slrn, not in leafnode.

> I'll rather document for 1.11.8 that slrn should be used with read_active at its
> default setting of 0.
(Continue reading)

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Whiskers | 4 Sep 2009 23:33
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Re: leafnode 1.11.7 unsubscribes low-traffic groups with slrn?

On Wed, 02 Sep 2009 08:39:24 +0200 "Matthias Andree"
<matthias.andree@...> wrote:

> Greetings,
> 
> this is a question to the slrn users reading news from leafnode 1.11.7:
> 
> Have you ever observed leafnode unsubscribing you from low-traffic groups
> (i. e. stop fetching these groups)?

[...]

Yes.  Pragmatically, the resolution is to set 'timeout_long' to more than 
the default 7 days, in /etc/leafnode/config - or of course, post something 
to the quiet group  ;))

It isn't in the /etc/leafnode/config.example file that came with my 
Leafnode 2 but I seem to recall that timeout_long set to zero, turns off 
that feature altogether - in which case you might want to manually edit 
the contents of /var/spool/news/interesting.groups from time to time.

--

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-- ^^^^^^^^^^
--  Whiskers 
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Paul Brooks | 6 Sep 2009 00:59
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Segmentation fault and dependencies


Hello,

Just info for others wanting to do the same thing.
I downloaded the source files leafnode-2.0.0.alpha20090409a.luascript.tar.bz2
and compiled them on a 64bit Ubuntu 9.04 machine and found the following
dependencies.

pcre     http://www.pcre.org/

  libtool

    gobjc++

libpcrecpp0

I think the last 3 were in the repositories, im not 100% sure.

Im in the process of setting up Leafnode 2.
Before I had set up a news reader to select a news group I ran
sudo fetchnews -vvvv        which ended with the output below.

......
I need an active file (to figure which groups are moderated) before I can post.
cannot open /var/spool/leafnode/leaf.node/10.0.0.13: No such file or directory - new server?
unable to open /etc/leafnode/local.groups: No such file or directory
Segmentation fault

Surely It should quit nicely
(Continue reading)

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Paul Brooks | 6 Sep 2009 01:19
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watermarks


Hello

On a server I get some news from, one group in particular
gives the message

......
sci.electronics.design: XOVER: reply was mutilated
news.task.gda.pl NNTP server disconnected or timed out while waiting for response
.....

It then exits without getting messages from any groups there after.

Now I know its the servers problem but I was wondering if it is possible to
change the watermark for that group by a message or 2 and how to do it,
so that it would not try and fetch the faulty header and message.
Or is there another / better way of doing it.

Paul.

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andrew | 6 Sep 2009 01:27
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Re: Segmentation fault and dependencies

On Sat, Sep 05, 2009 at 10:59:56PM +0000, Paul Brooks wrote:

> Just info for others wanting to do the same thing.
> I downloaded the source files leafnode-2.0.0.alpha20090409a.luascript.tar.bz2
> and compiled them on a 64bit Ubuntu 9.04 machine 

There is a guide on the Ubuntu Forums for a slightly older version of
leafnode 2:

[Howto] Setup and use Leafnode-2 with the newsreader slrn
http://ubuntuforums.org/showthread.php?t=676837

Andrew

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Paul Brooks | 6 Sep 2009 13:17
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Re: Segmentation fault and dependencies


>> Just info for others wanting to do the same thing.
>> I downloaded the source files leafnode-2.0.0.alpha20090409a.luascript.tar.bz2
>> and compiled them on a 64bit Ubuntu 9.04 machine 
> 
> There is a guide on the Ubuntu Forums for a slightly older version of
> leafnode 2:
> 
> [Howto] Setup and use Leafnode-2 with the newsreader slrn
> http://ubuntuforums.org/showthread.php?t=676837
> 
> Andrew

Ive managed to set it up before and this was a new setup I
was doing from memory and I found those dependencies from
a clean installation and were not noted in the installation
instructions that came with the source files. So Id
thought Id share.

Thanks for your reply
Paul

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