Hi Willy.
Am 07-04-2016 18:01, schrieb Willy Tarreau:
Hi Aleks,
On Fri, Apr 01, 2016 at 12:18:54PM +0200, Aleksandar Lazic wrote:
Hi Willy & other core devs/pms.
I know that HTTP/2 is on the road-map but not ready yet.
Would you be so kind and share some of your thoughts, stats and plans
for
HTTP/2.
Well, the plan is to have *at least* HTTP/2 with the client and HTTP/1
with
the server. Maybe we'll find that doing H2->H2 is easy enough but given
our
past experiences guessing that two sides are only slightly more
difficult
than a single one, I'd prefer to remain careful.
Regarding the timing, I'm trying hard to get something for 1.7 next
fall.
But to be very honnest, 90% of my time spent on haproxy is spent
chasing
bugs these days, the last 10% are spent on code review. We've reached a
level of complexity that is high enough to keep bug hunters busy and
that's
slowing us down. For the first time we even released a version with
several
known bugs that were not yet addressed by lack of time. So I'm trying
to
compose between fixing bugs and developing.
I have some paper drafts about what to do, when I read the date on them
I
realize that time flies (2014 for some of them). A significant part of
the
internal architecture is ready (split between streams and sessions),
some
of it still needs to be done (make an applet able to use normal load
balancing
just like a regular client), we need to implement the H2<->H1 MUX which
will
itself work almost like a proxy with various states depending what side
closes
first etc. And then to address all the shortcomings that will result
from this
(eg: tcp-request contents having to be applied on the clear text only,
etc).
Also among the requirements we can count one which is that the applets
are
fixed regarding the issue we currently have with peers which can stall.
H2
will have the same problem so we must ensure we find a correct fix for
the
peers before going full throttle the H2 way if we don't want to modify
the
architecture again.
That's the most accurate vision I can give for the moment.
Cheers,
Willy
thank you very much for the detailed answer, as always ;-).
Good to here that there are some plans for H2.
As we see on the answers on the list that there is a demand but not to
much pressure.
It's also a political thing like 'what you can't handle HTTP/2 this
fantastic new solve everything Protocol 8-O', you know.
Due to the fact that I'm long enough part of the haproxy community I'll
keep an eye on this and will ask again in some time and some times the
thread support is just here ;-).
If you need some help just give me a ping.
Cheers Aleks
