XSF Discussion - 2014-02-11

https://twitter.com/g0rdin/statuses/432999314257084417

For those with some German skills. For those without, the executive summary is: "Carbons >>> Hangouts, Stream Management is awesome. Yeah. The future. Yeah."

he's a happy camper. Now we just need to get some mobile clients sorted.

I really like watching http://display.ik.nu/xmpp.

you and your self-signed certs ;)

:-D

Better than nothing, I suppose?

probably

it says via Twitter, are there other source that go into it?

Not for this feed, no. But ikDisplay can have multiple different sources. It was originally created as a back channel for the federated semantic-web-like social networking sites I worked on at Mediamatic.

Including ActivityStreams.

https://github.com/ralphm/ikdisplay

Tobias: do you have any use cases?

ralphm, just wondered about the sources...but i suppose not many networks have sources for public streams anyway

Yay silos.

Tobias: That said, it probably should have support for Superfeedr. However, its XMPP PubSub API has some non-standard warts.

xnyhps, To be fair, if you send more than 2^96 stanzas, you've a better than even chance of hitting a collision.

You want to send the entire internet how many times? ;)

xnyhps, Although I imagine we could mitigate that by recommending people restart their XMLStream at least once before the heat death of the universe.

:)

anybody have a good federated xmpp domain for groupies to the philips hue bands we are startig around the world

the anni-frid@jabber.se <mailto:anni-frid@jabber.se>,bjorn@jabber.se <mailto:bjorn@jabber.se>, benny@jabber.se <mailto:benny@jabber.se> agneta@jabber.se <mailto:agneta@jabber.se> from abba@jabber.se <mailto:abba@jabber.se> is soon online

disco will get a completely new meaning in the XMPP world (:

YEEES :)

jabberjocke: looking awesome #hue

xnyhps, Oh, he's right.

xnyhps, I think you hit parity on the probability of hitting a 10 hex-char (ie, 48-bit) hash fragment after only 4.5 million years on a stanza per second.

I meant outputting the first 10 bytes of the hash, not the first 10 bytes of the hex representation of the hash, so 80 bit.

(Also, 10 hex-char is 40 bit, isn't it?)

Ah, yes.

It is worth noting, potentially, that while they're a generally bad idea, 0-based integer counters do have bandwidth going for them :)

yeah...think of all the savings....when outputting tons of bloated XML

^^

Oh, don't start.

;)

Use compression, and pick random parts from the stream so far to use as ids.

That actually works.

Absolutely.

Use an RNG to select bits of a stream to avoid needing to use an RNG.

Kev, No, this is for saving bandwidth.

Just hope you don't actually pick the content of a message. :P

dwd: It can't possibly save bandwidth.

However many bytes of entropy you want to have are going to take that many bytes to transmit.

(At least that many bytes to transmit, you could transmit lots with little entropy, I realise)

Kev, No, not at all. If you select carefully, you can generate random identifiers that are always encoded by zlib as a reference, hence three octets or so.

And by doing so, you're reducing the entropy.

You're talking about selecting your randomness very carefully so that it's not too random :)

Smallish number of bits.

But it's OK, because you could send the *real* random data earlier in the stream to refer back to.

This is close enough to the edge of my knowledge that I accept I could be wrong in this. But this sounds like Not A Good Idea.

I was entirely not serious.

xnyhps, Nor me. But I'm wondering how far I can string Kev along. :-)

xnyhps: You, I believe. Dave I have less faith in...

Kev, You didn't like the suggestion that you'd put arbitrary random data in the stream, then refer back to it, so you get both the compression *and* the randomness?

I was proud of that one.

That bit I assumed was a joke. The rest I was less convinced about.

Sorry Peter.

xnyhps: I haven't seen anything useful from this person, but I admit that I have started to tune him out (not quite killfile, but close)

Me neither

You're talking about me, right? :p

;-)

Who are you?

created a fosdem post draft at xmpp.org <http://xmpp.org> please review and add a good foto

Right, I think that's comments for the people who asked for them on GSoC ideas given.