看到一些流从客户端发送到服务器的 RST_STREAM 和 CANCEL。添加了两个流数据，在一种情况下看到 RST_STREAM，在另一种情况下没有。
看到 RST_STREAM 的 HTTP2 流
No. Time Source Destination Protocol Length Info
87 2020-05-13 16:38:33.051377 192.168.1.1 192.168.2.2 HTTP2 131 HEADERS[25]: PUT /resource/2
HyperText Transfer Protocol 2
Stream: HEADERS, Stream ID: 25, Length 56, PUT /resource/2
Length: 56
Type: HEADERS (1)
Flags: 0x04
.... ...0 = End Stream: False
.... .1.. = End Headers: True
.... 0... = Padded: False
..0. .... = Priority: False
00.0 ..0. = Unused: 0x00
0... .... .... .... .... .... .... .... = Reserved: 0x0
.000 0000 0000 0000 0000 0000 0001 1001 = Stream Identifier: 25
[Pad Length: 0]
Header Block Fragment: cecd45af62ab64a56b4a4a58ee160d4a0cb3210321004406…
[Header Length: 279]
[Header Count: 8]
Header: :authority: 192.168.2.2:8000
Name Length: 10
Name: :authority
Value Length: 19
Value: 192.168.2.2:8000
:authority: 192.168.2.2:8000
[Unescaped: 192.168.2.2:8000]
Representation: Indexed Header Field
Index: 78
Header: :method: PUT
Name Length: 7
Name: :method
Value Length: 3
Value: PUT
:method: PUT
[Unescaped: PUT]
Representation: Indexed Header Field
Index: 77
Header: :path: /resource/2
Name Length: 5
Name: :path
Value Length: 68
Value: /resource/2
:path: /resource/2
[Unescaped: /resource/2]
Representation: Literal Header Field with Incremental Indexing - Indexed Name
Index: 5
Header: :scheme: http
Name Length: 7
Name: :scheme
Value Length: 4
Value: http
:scheme: http
[Unescaped: http]
Representation: Indexed Header Field
Index: 6
Header: content-type: application/json
Name Length: 12
Name: content-type
Value Length: 16
Value: application/json
content-type: application/json
[Unescaped: application/json]
Representation: Indexed Header Field
Index: 76
Header: content-length: 259
Name Length: 14
Name: content-length
Value Length: 3
Value: 259
content-length: 259
[Unescaped: 259]
Representation: Indexed Header Field
Index: 75
Header: accept-encoding: gzip
Name Length: 15
Name: accept-encoding
Value Length: 4
Value: gzip
accept-encoding: gzip
[Unescaped: gzip]
Representation: Indexed Header Field
Index: 74
Header: user-agent: Go-http-client/2.0
Name Length: 10
Name: user-agent
Value Length: 18
Value: Go-http-client/2.0
user-agent: Go-http-client/2.0
[Unescaped: Go-http-client/2.0]
Representation: Indexed Header Field
Index: 73
No. Time Source Destination Protocol Length Info
89 2020-05-13 16:38:33.051399 192.168.1.1 192.168.2.2 HTTP2 334 DATA[25] (application/json)
HyperText Transfer Protocol 2
Stream: DATA, Stream ID: 25, Length 259
Length: 259
Type: DATA (0)
Flags: 0x01
.... ...1 = End Stream: True
.... 0... = Padded: False
0000 .00. = Unused: 0x00
0... .... .... .... .... .... .... .... = Reserved: 0x0
.000 0000 0000 0000 0000 0000 0001 1001 = Stream Identifier: 25
[Pad Length: 0]
Data: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx…
JavaScript Object Notation: application/json
Object
No. Time Source Destination Protocol Length Info
299 2020-05-13 16:38:33.192347 192.168.2.2 192.168.1.1 HTTP2 742 DATA[15] (application/json), HEADERS[47]: 200 OK, HEADERS[25]: 201 Created, DATA[25] (application/json)
HyperText Transfer Protocol 2
Stream: HEADERS, Stream ID: 25, Length 107, 201 Created
Length: 107
Type: HEADERS (1)
Flags: 0x04
.... ...0 = End Stream: False
.... .1.. = End Headers: True
.... 0... = Padded: False
..0. .... = Priority: False
00.0 ..0. = Unused: 0x00
0... .... .... .... .... .... .... .... = Reserved: 0x0
.000 0000 0000 0000 0000 0000 0001 1001 = Stream Identifier: 25
[Pad Length: 0]
Header Block Fragment: ce0f0d03323539d40f1fd99d29aee30c040b85d797085e5c…
[Header Length: 396]
[Header Count: 8]
Header: :status: 201 Created
Name Length: 7
Name: :status
Value Length: 3
Value: 201
:status: 201
[Unescaped: 201]
Representation: Indexed Header Field
Index: 78
Header: content-length: 259
Name Length: 14
Name: content-length
Value Length: 3
Value: 259
content-length: 259
[Unescaped: 259]
Representation: Literal Header Field without Indexing - Indexed Name
Index: 28
Header: content-type: application/json
Name Length: 12
Name: content-type
Value Length: 16
Value: application/json
content-type: application/json
[Unescaped: application/json]
Representation: Indexed Header Field
Index: 84
Header: location: http://192.168.2.2:8000/192.168.3.3:8080~odxdp~api~/resource/2
Name Length: 8
Name: location
Value Length: 124
Value: http://192.168.2.2:8000/192.168.3.3:8080~odxdp~api~/resource/2
location: http://192.168.2.2:8000/192.168.3.3:8080~odxdp~api~/resource/2
[Unescaped: http://192.168.2.2:8000/192.168.3.3:8080~odxdp~api~/resource/2]
Representation: Literal Header Field without Indexing - Indexed Name
Index: 46
Header: x-envoy-upstream-service-time: 82
Name Length: 29
Name: x-envoy-upstream-service-time
Value Length: 2
Value: 82
[Unescaped: 82]
Representation: Literal Header Field with Incremental Indexing - Indexed Name
Index: 62
Header: date: Wed, 13 May 2020 16:38:33 GMT
Name Length: 4
Name: date
Value Length: 29
Value: Wed, 13 May 2020 16:38:33 GMT
date: Wed, 13 May 2020 16:38:33 GMT
[Unescaped: Wed, 13 May 2020 16:38:33 GMT]
Representation: Indexed Header Field
Index: 76
Header: server: istio-envoy
Name Length: 6
Name: server
Value Length: 11
Value: istio-envoy
server: istio-envoy
[Unescaped: istio-envoy]
Representation: Indexed Header Field
Index: 82
Header: via: 2.0 worker.com
Name Length: 3
Name: via
Value Length: 61
Value: 2.0 worker.com
via: 2.0 worker.com
[Unescaped: 2.0 worker.com]
Representation: Indexed Header Field
Index: 81
Stream: DATA, Stream ID: 25, Length 259
Length: 259
Type: DATA (0)
Flags: 0x01
.... ...1 = End Stream: True
.... 0... = Padded: False
0000 .00. = Unused: 0x00
0... .... .... .... .... .... .... .... = Reserved: 0x0
.000 0000 0000 0000 0000 0000 0001 1001 = Stream Identifier: 25
[Pad Length: 0]
Data: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx…
JavaScript Object Notation: application/json
Object
No. Time Source Destination Protocol Length Info
303 2020-05-13 16:38:33.192550 192.168.1.1 192.168.2.2 HTTP2 79 RST_STREAM[25]
HyperText Transfer Protocol 2
Stream: RST_STREAM, Stream ID: 25, Length 4
Length: 4
Type: RST_STREAM (3)
Flags: 0x00
0000 0000 = Unused: 0x00
0... .... .... .... .... .... .... .... = Reserved: 0x0
.000 0000 0000 0000 0000 0000 0001 1001 = Stream Identifier: 25
Error: CANCEL (8)
看不到 RST_STREAM 的 HTTP2 流
No. Time Source Destination Protocol Length Info
27 2020-05-13 16:38:33.000206 192.168.1.1 192.168.2.2 HTTP2 131 HEADERS[7]: PUT /resource/1
HyperText Transfer Protocol 2
Stream: HEADERS, Stream ID: 7, Length 56, PUT /resource/1
Length: 56
Type: HEADERS (1)
Flags: 0x04
.... ...0 = End Stream: False
.... .1.. = End Headers: True
.... 0... = Padded: False
..0. .... = Priority: False
00.0 ..0. = Unused: 0x00
0... .... .... .... .... .... .... .... = Reserved: 0x0
.000 0000 0000 0000 0000 0000 0000 0111 = Stream Identifier: 7
[Pad Length: 0]
Header Block Fragment: c5c445af62ab64a56b4a4a58ee160d4a0cb3210321004406…
[Header Length: 279]
[Header Count: 8]
Header: :authority: 192.168.2.2:8000
Name Length: 10
Name: :authority
Value Length: 19
Value: 192.168.2.2:8000
:authority: 192.168.2.2:8000
[Unescaped: 192.168.2.2:8000]
Representation: Indexed Header Field
Index: 69
Header: :method: PUT
Name Length: 7
Name: :method
Value Length: 3
Value: PUT
:method: PUT
[Unescaped: PUT]
Representation: Indexed Header Field
Index: 68
Header: :path: /resource/1
Name Length: 5
Name: :path
Value Length: 68
Value: /resource/1
:path: /resource/1
[Unescaped: /resource/1]
Representation: Literal Header Field with Incremental Indexing - Indexed Name
Index: 5
Header: :scheme: http
Name Length: 7
Name: :scheme
Value Length: 4
Value: http
:scheme: http
[Unescaped: http]
Representation: Indexed Header Field
Index: 6
Header: content-type: application/json
Name Length: 12
Name: content-type
Value Length: 16
Value: application/json
content-type: application/json
[Unescaped: application/json]
Representation: Indexed Header Field
Index: 67
Header: content-length: 259
Name Length: 14
Name: content-length
Value Length: 3
Value: 259
content-length: 259
[Unescaped: 259]
Representation: Indexed Header Field
Index: 66
Header: accept-encoding: gzip
Name Length: 15
Name: accept-encoding
Value Length: 4
Value: gzip
accept-encoding: gzip
[Unescaped: gzip]
Representation: Indexed Header Field
Index: 65
Header: user-agent: Go-http-client/2.0
Name Length: 10
Name: user-agent
Value Length: 18
Value: Go-http-client/2.0
user-agent: Go-http-client/2.0
[Unescaped: Go-http-client/2.0]
Representation: Indexed Header Field
Index: 64
No. Time Source Destination Protocol Length Info
29 2020-05-13 16:38:33.000227 192.168.1.1 192.168.2.2 HTTP2 334 DATA[7] (application/json)
HyperText Transfer Protocol 2
Stream: DATA, Stream ID: 7, Length 259
Length: 259
Type: DATA (0)
Flags: 0x01
.... ...1 = End Stream: True
.... 0... = Padded: False
0000 .00. = Unused: 0x00
0... .... .... .... .... .... .... .... = Reserved: 0x0
.000 0000 0000 0000 0000 0000 0000 0111 = Stream Identifier: 7
[Pad Length: 0]
Data: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx…
JavaScript Object Notation: application/json
Object
No. Time Source Destination Protocol Length Info
185 2020-05-13 16:38:33.131058 192.168.2.2 192.168.1.1 HTTP2 1149 HEADERS[3]: 200 OK, DATA[3] (application/json), HEADERS[11]: 200 OK, DATA[11] (application/json), HEADERS[7]: 201 Created, DATA[7] (application/json)
HyperText Transfer Protocol 2
Stream: HEADERS, Stream ID: 7, Length 111, 201 Created
Length: 111
Type: HEADERS (1)
Flags: 0x04
.... ...0 = End Stream: False
.... .1.. = End Headers: True
.... 0... = Padded: False
..0. .... = Priority: False
00.0 ..0. = Unused: 0x00
0... .... .... .... .... .... .... .... = Reserved: 0x0
.000 0000 0000 0000 0000 0000 0000 0111 = Stream Identifier: 7
[Pad Length: 0]
Header Block Fragment: 488210030f0d03323539c40f1fd99d29aee30c040b85d797…
[Header Length: 397]
[Header Count: 8]
Header: :status: 201 Created
Name Length: 7
Name: :status
Value Length: 3
Value: 201
:status: 201
[Unescaped: 201]
Representation: Literal Header Field with Incremental Indexing - Indexed Name
Index: 8
Header: content-length: 259
Name Length: 14
Name: content-length
Value Length: 3
Value: 259
content-length: 259
[Unescaped: 259]
Representation: Literal Header Field without Indexing - Indexed Name
Index: 28
Header: content-type: application/json
Name Length: 12
Name: content-type
Value Length: 16
Value: application/json
content-type: application/json
[Unescaped: application/json]
Representation: Indexed Header Field
Index: 68
Header: location: http://192.168.2.2:8000/192.168.3.4:8080~odxdp~api~/resource/1
Name Length: 8
Name: location
Value Length: 124
Value: http://192.168.2.2:8000/192.168.3.4:8080~odxdp~api~/resource/1
location: http://192.168.2.2:8000/192.168.3.4:8080~odxdp~api~/resource/1
[Unescaped: http://192.168.2.2:8000/192.168.3.4:8080~odxdp~api~/resource/1]
Representation: Literal Header Field without Indexing - Indexed Name
Index: 46
Header: x-envoy-upstream-service-time: 119
Name Length: 29
Name: x-envoy-upstream-service-time
Value Length: 3
Value: 119
[Unescaped: 119]
Representation: Literal Header Field with Incremental Indexing - Indexed Name
Index: 63
Header: date: Wed, 13 May 2020 16:38:32 GMT
Name Length: 4
Name: date
Value Length: 29
Value: Wed, 13 May 2020 16:38:32 GMT
date: Wed, 13 May 2020 16:38:32 GMT
[Unescaped: Wed, 13 May 2020 16:38:32 GMT]
Representation: Indexed Header Field
Index: 67
Header: server: istio-envoy
Name Length: 6
Name: server
Value Length: 11
Value: istio-envoy
server: istio-envoy
[Unescaped: istio-envoy]
Representation: Indexed Header Field
Index: 66
Header: via: 2.0 worker.com
Name Length: 3
Name: via
Value Length: 61
Value: 2.0 worker.com
via: 2.0 worker.com
[Unescaped: 2.0 worker.com]
Representation: Indexed Header Field
Index: 65
Stream: DATA, Stream ID: 7, Length 259
Length: 259
Type: DATA (0)
Flags: 0x01
.... ...1 = End Stream: True
.... 0... = Padded: False
0000 .00. = Unused: 0x00
0... .... .... .... .... .... .... .... = Reserved: 0x0
.000 0000 0000 0000 0000 0000 0000 0111 = Stream Identifier: 7
[Pad Length: 0]
Data: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx…
JavaScript Object Notation: application/json
Object
我不理解这里的行为。由于已经在响应数据中收到了 END_STREAM，为什么 http2 堆栈正在发送 RST_STREAM。
Note1: 使用 golang 的 http2 包golang.org/x/net/http2
注2：两种流的数据内容没有区别