On Wed, 2020-11-18 at 21:20 +0000, jwhit...@redhat.com wrote:
> Hi, 
>  I am benchmarking HttpCore 5.1-Beta. When running under load HTTP
> clear text tests I am seeing frequent protocol errors reported. Using
> Wireshark to trace the interface.
> 
> No.   Time    Cumulative      Protocol        Length  Info    UTC
> 29    0.093415950     2572    TCP     66      37020 → 80 [ACK]
> Seq=554 Ack=90 Win=65536 Len=0 TSval=3201662568 TSecr=3201662568      
> 2020-11-18 18:09:26.134336499
> 30    0.094209181     2749    HTTP2   177     HEADERS[9]: GET 
> http://localhost/api/content/maven/remote/central/org/codehaus/mojo/build-helper-maven-plugin/3.0.0/build-helper-maven-plugin-3.0.0.pom
>       2020-11-18 18:09:26.135129730
> 31    0.094291017     2828    HTTP2   79      RST_STREAM[9]   2020-
> 11-18 18:09:26.135211566
> 32    0.094304480     2894    TCP     66      37020 → 80 [ACK]
> Seq=665 Ack=103 Win=65536 Len=0 TSval=3201662569 TSecr=3201662569     
> 2020-11-18 18:09:26.135225029
> 
> 
>  Immediately after the client issues a GET method request the server
> is
> sending RST_STREAM.
> 
> Frame 31: 79 bytes on wire (632 bits), 79 bytes captured (632 bits)
> on
> interface lo, id 0
> Ethernet II, Src: 00:00:00_00:00:00 (00:00:00:00:00:00), Dst:
> 00:00:00_00:00:00 (00:00:00:00:00:00)
> Internet Protocol Version 4, Src: 127.0.0.1, Dst: 127.0.0.1
> Transmission Control Protocol, Src Port: 80, Dst Port: 37020, Seq:
> 90,
> Ack: 665, Len: 13
>     Source Port: 80
>     Destination Port: 37020
>     [Stream index: 0]
>     [TCP Segment Len: 13]
>     Sequence number: 90    (relative sequence number)
>     Sequence number (raw): 3817038059
>     [Next sequence number: 103    (relative sequence number)]
>     Acknowledgment number: 665    (relative ack number)
>     Acknowledgment number (raw): 3962548455
>     1000 .... = Header Length: 32 bytes (8)
>     Flags: 0x018 (PSH, ACK)
>     Window size value: 512
>     [Calculated window size: 65536]
>     [Window size scaling factor: 128]
>     Checksum: 0xfe35 [unverified]
>     [Checksum Status: Unverified]
>     Urgent pointer: 0
>     Options: (12 bytes), No-Operation (NOP), No-Operation (NOP),
> Timestamps
>     [SEQ/ACK analysis]
>     [Timestamps]
>     TCP payload (13 bytes)
>     [PDU Size: 13]
> HyperText Transfer Protocol 2
>     Stream: RST_STREAM, Stream ID: 9, Length 4
>         Length: 4
>         Type: RST_STREAM (3)
>         Flags: 0x00
>         0... .... .... .... .... .... .... .... = Reserved: 0x0
>         .000 0000 0000 0000 0000 0000 0000 1001 = Stream Identifier:
> 9
>         Error: PROTOCOL_ERROR (1)
> 
> 
>  The set-up I have is running Apache Httpd to serve content with h2c
> protocol. The load driver pushing GET requests for files. A mixture
> of
> text or binary.
> 
>  I checked JIRA and found no reported issues. I know this as BETA
> release I'm using. Is this api expected to work without issue ?
> 
> Regards,
> Jeremy
> 
> The client driver is based on this example [1].
> 
> $ java -version
> openjdk version "11.0.9" 2020-10-20
> OpenJDK Runtime Environment 18.9 (build 11.0.9+11)
> OpenJDK 64-Bit Server VM 18.9 (build 11.0.9+11, mixed mode, sharing)
> $ uname -a
> Linux burtha-f31 5.8.17-100.fc31.x86_64 #1 SMP Thu Oct 29 18:58:48
> UTC
> 2020 x86_64 x86_64 x86_64 GNU/Linux
> $
> 
> [1] 
> https://hc.apache.org/httpcomponents-core-5.1.x/httpcore5-h2/examples/H2RequestExecutionExample.java
> 

Hi Jeremy

I am not aware of such issue. This is not expected. However to be able
to tell me I need to see the complete message exchange leading to a
stream reset by the server.

Is there a chance you could put together a reproducer based on this
docker image [1] or anything I could run locally?

Oleg

[1] 
https://github.com/apache/httpcomponents-core/tree/master/httpcore5-testing/docker/apache-httpd




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