[SR-Users] [sr-dev] rfc: distributing dialog profiles

[Charles Chance]

Alex,

Thanks for expanding in such detail. I appreciate you taking the time to
fix the things that I missed. Sometimes I think it may have been easier to
start from scratch ;)

Best regards,

Charles
On 25 Aug 2014 10:11, "Alex Hermann" <alex at speakup.nl> wrote:

> On Friday 22 August 2014, Charles Chance wrote:
> > On 22 August 2014 16:46, Alex Hermann <alex at speakup.nl> wrote:
> > > Last week, i just built profile synchronisation in the dialog module,
> > > based on
> > > dmq. It took quite a bit of debugging time because of the state dmq was
> > > in.
> >
> > Can you expand a little on "the state dmq was in"?
>
> I was hoping to use it as-is, but i encountered issues which had to be
> resolved before i could even use the module:
>
> - As soon as i enabled the dmq module, i experienced segfaults.
> - It had bad interaction with the maxfwd module
> - Status updates between hosts were largely ignored.
> - The configured server_address wasn't used to send messages.
>
>
>
> > > It still has some rough edges, but i'll try to push a branch (shortly
> > > after)
> > > this weekend for review.
> >
> > Looking forward to seeing it - may save me the time :)
>
> I pushed my WIP to the branch alexh/dialog-sync-wip which also contains
> dialog and dmq fixes and cleanups.
>
> It's WIP, so it might still change. This branch is only compile-tested so
> far, because i normally develop against 3.2. I just cherry-picked most of
> my
> patches to master.
>
> Known issues:
>  - Sync get off under load, cause unknown yet, but probably because of out-
> of-order sync messages.
>
> Still on the TODO list:
>  - Delete 'disabled'  dmq hosts
>  - Cope better with out-of-order sync messages
>  - Sync initial state
>  - Clean shutdown of DMQ, free all memory
>  - More efficient protocol instead of JSON. Probably just write raw data in
> the packet, so the receiving side can just use a pointer into the buf
> instead of having to copy everything.
>
> --
> Alex
>
>
>
> --
> Alex Hermann
>

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