[nos-bbs] multi bbs with same call, bid overlap, history file, dupes, expires

[Ron Gibson]

Hi Maiko,

1) I don't touch my history file. I keep 720 days of history in an 
attempt to prevent accepting old BID's

2) No

3) I expire my areas each day and only keep X days of messages. As long 
as the BID's aren't modified somewhere along the line then #1 stops them.

Ron
VE3CGR

On 9/23/2020 4:33 PM, Langelaar wrote:
> Some technical questions going through my head lately, in part
> this is me just thinking outloud, but also asking questions, so
> it would be nice to hear from LOTS of folks how they interpret
> all of this.
>
> Subject : multi bbs with same call, bid overlap, history file, dupes, 
> expires
>
> 3 groups of questions
>
> Over the past year I am finally understanding a bit better the
> intricacies of dupes, and bids, still not an expert, but a few
> things that have happened lately are making me look deeper.
>
> 1) History file
>
> For instance, how many folks use the history file on their NOS
> systems, doyou actively 'maintain' or heaven forbid 'delete' it
> on a regularbasis ? This file is important (?) for dupe control.
>
> 2) Multiple BBS using same callsign and ovelapping BIDs ?
>
> How many folks are running multiple BBS systems that havethesame
> callsign ? If you fall into this category, would you mind sharing a
> bit more information ?
>
> Are you running multiple xNOS systems ?
>
> If so, do your 'sequence' numbers overlap ? In other words, if
> you examine the values on each of your xNOS system, how close
> are they to each other, how much of a 'gap' exists between :
>
>    # more /jnos/rte/spool/mqueue/sequence.seq
>    16792
>
> With the present BID limit of JNOS, it's kind of a complicated
> question, since once we hit 99999 we 'roll over' XXXXX_VE4KLM
> for instance. So that doesn't leave much leeway for those who
> run multiple NOS systems.
>
> The next version is coming out with BASE36 BID so that stretches
> the limit to a MUCH LARGER value, so if you run multiple NOS systems
> it would seem to make sense to stagger your sequence numbers, so that
> there is a gap of a few million between them (once you run BASE36 that
> is).
>
> Can the lack of a gap contribute to dupes ? Actually can the lack of
> the gap prevent bonified messages from getting posted on remote BBS
> systems that already have a message with the BID from your other NOS
> system, one that technically could be a whole different subject line
> or content ?
>
> 3) I expire messages every so often, like anyone does. So I recently
>    expired my ww area, then the messages reappeared when forwarding
>    from another remote system who has different 'expiry' needs then
>    my own. This one surprised me by accident the other day. I had a
>    whole wack of @ww expired after lets say 30 days, only to find
>    them there again after forwarding with another system. Yeah, I
>    got back all those messages which I had already expired, since
>    that other system did not expire them. Does this make sense what
>    I'm saying ?
>
>    SO what happens then is that I in turn forward these to others,
>    without knowing at the time that 'these expired messages' came
>    back to my system, so does that make me create dupes of messages
>    in a sense and it spirals out of control ?
>
> It's been 16 years since I took on JNOS and I'm just starting to
> figure out some of this crap now ? oh man ...
>
> Sorry for the length of this, but to me this seems 'important' :|
>
> Maiko / VE4KLM
>
>
> _______________________________________________
> nos-bbs mailing list
> nos-bbs at lists.tapr.org
> http://lists.tapr.org/mailman/listinfo/nos-bbs_lists.tapr.org


-- 
This email has been checked for viruses by AVG.
https://www.avg.com