Bring SPDY back in nginx-1.14.0

[Dewangga Alam]

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Hello!

On 01/10/18 19.32, Maxim Dounin wrote:
> Hello!
> 
> On Sat, Sep 29, 2018 at 08:29:56AM +0700, Dewangga Alam wrote:
> 
>> Currently, I am using nginx-1.8.1 in production. And I need SPDY to
>> works on nginx-1.14.0 co-exists with http/2. Because I still need SPD
Y
>> for compatibility, and for future deployment, I will migrate it all t
o
>> HTTP/2.
>>
>> To make this possible, so I was create patch to make SPDY and HTTP/2 
run
>> together.
>>
>> I was read cloudflare patch regarding this issue (spdy & http/2) and
>> make some adjustment (patch attached).
>>
>> But, got some errors when compiling. The error message was :
> 
> [...]
> 
> Just to make sure you understand it:
> 
> As per https://caniuse.com/#search=spdy - SPDY is only supported by
> about 20% of browsers in use, and most of these browsers already
> support HTTP/2.  Most modern browsers do not have SPDY support.
> 
> In contrast, HTTP/2 is supported by more than 80% of browsers in 
> use.  And most modern browsers which do not support HTTP/2 - do
> not support SPDY either.
> 
> Moreover, SPDY code you are trying to bring back is not maintained 
> for a long time now, since it was replaced by HTTP/2 in nginx 
> 1.9.5.  And there are various known problems fixed in the HTTP/2 
> code since then, so likely there are similar problems in the SPDY 
> code.
> 
> Summing the above, trying to bring back SPDY support is mostly 
> meaningless and might be dangerous.  It might be a better idea to 
> focus on migrating to HTTP/2 instead.
> 

Many thanks for very clear explanation, Maxim. We will focus on
migrating to HTTP/2.
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