[undertow-dev] nghttp2 requests to Undertow - "[ERROR] HTTP/2 protocol was not selected. (nghttp2 expects h2)"

[Michael Hixson]

Yeah that must be it.  Thanks, Stuart.

-Michael

On Wed, Jun 3, 2015 at 12:56 AM, Stuart Douglas <sdouglas at redhat.com> wrote:
> This is very odd. What version of OpenSSL do you have? From their docs:
>
> "ALPN support requires OpenSSL >= 1.0.2 (released 22 January 2015)."
>
> If you have an older version it will be using NPN (which was used by early drafts of the protocol), which we do not support.
>
> Stuart
>
> ----- Original Message -----
>> From: "Michael Hixson" <michael.hixson at gmail.com>
>> To: undertow-dev at lists.jboss.org
>> Sent: Wednesday, 3 June, 2015 6:17:40 AM
>> Subject: [undertow-dev] nghttp2 requests to Undertow - "[ERROR] HTTP/2 protocol was not selected. (nghttp2 expects
>> h2)"
>>
>> I am attempting to make requests to an Undertow+HTTP/2 server with nghttp2.
>>
>> https://github.com/tatsuhiro-t/nghttp2
>>
>> The requests fail.  I see the same error on the public demo site for
>> Undertow+HTTP/2, and I don't see any errors when I hit other
>> HTTP/2-enabled public sites, such as google.com.
>>
>> The error is "[ERROR] HTTP/2 protocol was not selected. (nghttp2
>> expects h2)".  See the end of this email for full output from the
>> command line for requests to google.com and http2.undertow.io.
>>
>> I'm wondering if this is a bug in Undertow.  Or perhaps it is a bug in
>> nghttp2 and I'm on the wrong mailing list.  Have any of you tried
>> this?  Any thoughts?
>>
>> I'm using nghttp2 version 1.1.  The Undertow version is whatever the
>> public demo site is running right now, but I also tried it locally
>> with the latest from master (1.3.0.Beta1-SNAPSHOT) and got the same
>> result.
>>
>> -Michael
>>
>>
>> ----------------------------------------------
>>
>>
>> $ nghttp -ns https://www.google.com/
>> ***** Statistics *****
>>
>> Request timing:
>>   responseEnd: the  time  when  last  byte of  response  was  received
>>                relative to connectEnd
>>  requestStart: the time  just before  first byte  of request  was sent
>>                relative  to connectEnd.   If  '*' is  shown, this  was
>>                pushed by server.
>>       process: responseEnd - requestStart
>>          code: HTTP status code
>>          size: number  of  bytes  received as  response  body  without
>>                inflation.
>>           URI: request URI
>>
>> see http://www.w3.org/TR/resource-timing/#processing-model
>>
>> sorted by 'complete'
>>
>> id  responseEnd requestStart  process code size request path
>>  13    +83.40ms       +161us  83.24ms  200  19K /
>>
>>
>> ----------------------------------------------
>>
>>
>> $ nghttp -ns https://http2.undertow.io/
>> [ERROR] HTTP/2 protocol was not selected. (nghttp2 expects h2)
>> Some requests were not processed. total=1, processed=0
>> ***** Statistics *****
>>
>> Request timing:
>>   responseEnd: the  time  when  last  byte of  response  was  received
>>                relative to connectEnd
>>  requestStart: the time  just before  first byte  of request  was sent
>>                relative  to connectEnd.   If  '*' is  shown, this  was
>>                pushed by server.
>>       process: responseEnd - requestStart
>>          code: HTTP status code
>>          size: number  of  bytes  received as  response  body  without
>>                inflation.
>>           URI: request URI
>>
>> see http://www.w3.org/TR/resource-timing/#processing-model
>>
>> sorted by 'complete'
>>
>> id  responseEnd requestStart  process code size request path
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