Actually, our error output is slightly different than issue 17066's.
2017/07/14 10:53:31 http2: Transport failed to get client conn for
<redacted>:443: http2: no cached connection was available
2017/07/14 10:53:31 http2: Transport creating client conn 0xc4200016c0 to
<redacted>:443
2017/07/14 10:53:31 http2: Framer 0xc4202b41a0: wrote SETTINGS len=18,
settings: ENABLE_PUSH=0, INITIAL_WINDOW_SIZE=4194304,
MAX_HEADER_LIST_SIZE=10485760
2017/07/14 10:53:31 http2: Framer 0xc4202b41a0: wrote WINDOW_UPDATE len=4
(conn) incr=1073741824
2017/07/14 10:53:31 http2: Transport encoding header ":authority" =
"<redacted>"
2017/07/14 10:53:31 http2: Transport encoding header ":method" = "POST"
2017/07/14 10:53:31 http2: Transport encoding header ":path" = "/"
2017/07/14 10:53:31 http2: Transport encoding header ":scheme" = "https"
<redacted some x-headers>
2017/07/14 10:53:31 http2: Framer 0xc4202b41a0: read SETTINGS len=18,
settings: MAX_FRAME_SIZE=1048576, MAX_CONCURRENT_STREAMS=250,
MAX_HEADER_LIST_SIZE=1048896
2017/07/14 10:53:31 http2: Transport received SETTINGS len=18, settings:
MAX_FRAME_SIZE=1048576, MAX_CONCURRENT_STREAMS=250,
MAX_HEADER_LIST_SIZE=1048896
2017/07/14 10:53:31 http2: Transport encoding header "content-length" =
"141"
2017/07/14 10:53:31 http2: Transport encoding header "accept-encoding" =
"gzip"
2017/07/14 10:53:31 http2: Transport encoding header "user-agent" =
"Go-http-client/2.0"
2017/07/14 10:53:31 http2: Framer 0xc4202b41a0: wrote HEADERS
flags=END_HEADERS stream=1 len=212
2017/07/14 10:53:31 Unhandled Setting: [MAX_HEADER_LIST_SIZE = 1048896]
2017/07/14 10:53:31 http2: Framer 0xc4202b41a0: wrote SETTINGS flags=ACK
len=0
2017/07/14 10:53:31 http2: Framer 0xc4202b41a0: wrote DATA stream=1 len=141
data="<redacted>"
2017/07/14 10:53:31 http2: Framer 0xc4202b41a0: wrote DATA flags=END_STREAM
stream=1 len=0 data=""
2017/07/14 10:53:31 http2: Framer 0xc4202b41a0: read SETTINGS flags=ACK
len=0
2017/07/14 10:53:31 http2: Transport received SETTINGS flags=ACK len=0
2017/07/14 10:53:31 http2: Framer 0xc4202b41a0: read WINDOW_UPDATE len=4
(conn) incr=141
2017/07/14 10:53:31 http2: Transport received WINDOW_UPDATE len=4 (conn)
incr=141
2017/07/14 10:53:31 http2: Framer 0xc4202b41a0: read RST_STREAM stream=1
len=4 ErrCode=INTERNAL_ERROR
2017/07/14 10:53:31 http2: Transport received RST_STREAM stream=1 len=4
ErrCode=INTERNAL_ERROR
2017/07/14 10:53:31 RoundTrip failure: stream error: stream ID 1;
INTERNAL_ERROR
2017/07/14 10:53:31 Post https://<redacted>/: stream error: stream ID 1;
INTERNAL_ERROR
We get INTERNAL_ERROR instead of REFUSED_STREAM
On Friday, July 14, 2017 at 12:06:30 PM UTC+2, thwd wrote:
>
> Seems to be Mac OS related. It works on Linux, every time over HTTP 1 and
> 2.
>
> On Friday, July 14, 2017 at 11:33:22 AM UTC+2, thwd wrote:
>>
>> We tried:
>>
>> if len(os.Getenv("DISABLE_HTTP2")) > 0 {
>> http.DefaultClient.Transport = &http.Transport{
>> TLSNextProto: make(map[string]func(string, *tls.Conn)
>> http.RoundTripper),
>> }
>> }
>>
>> But the effect was the same as with GODEBUG=http2client=0, just an EOF.
>> Will keep trying.
>>
>> If it is relevant we're using "golang.org/x/crypto/acme/autocert" for
>> TLS and our service is only reachable through HTTPS. The certificate is
>> valid and working and will not expire soon.
>>
>> On Friday, July 14, 2017 at 11:10:39 AM UTC+2, thwd wrote:
>>>
>>> We use GKE (Kubernetes on GCE) and have Go HTTP/2 pods running there. In
>>> front of them is a service of type "LoadBalancer". As I understand, these
>>> are nginx instances.
>>>
>>> Since this week, the error described in issue 17066 [1] is happening
>>> about 90% of the time when we connect a client via HTTP/2 (it works
>>> sporadically).
>>>
>>> This project has been running for over a year with no issues until this
>>> week. I suspect Google deployed an update or such to the load balancers.
>>>
>>> We've tried setting GODEBUG=http2client=0 (as described in package
>>> net/http doc) to use HTTP 1.1 but all we get is a io.EOF error on
>>> http.DefaultClient.Do.
>>>
>>> I'm working on a workaround, will post how we solve it. Any ideas or
>>> suggestions are welcome.
>>>
>>> [1] https://github.com/golang/go/issues/17066
>>>
>>
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