On Wed, 2019-12-11 at 23:25 -0800, Ryan Schmitt wrote: > I've discovered a few things about the HPACK errors I'm seeing during > integration testing: > > - They are deterministic: they always occur on the > first RegisterStreamConsumer call, which is usually assigned streamId > 17 or > so on the h2 connection. > - They are completely unaffected by disabling Huffman encoding. > - The RegisterStreamConsumer call succeeds when retried > (automatically, by > the SDK's default retry logic) on a new connection. > > I think these facts strongly suggest some sort of client-side > corruption of > the connection state, causing the client to eventually write a > corrupt > HEADERS frame that the server rejects. I've posted GitHub gists with > full > debug logs for the integration tests with Huffman encoding disabled > [1] and > enabled [2]. I don't think debug logs are an especially useful format > in > this case, so tomorrow I'll work on dumping just the raw binary > sequence of > HEADERS frames (for the whole connection) to a dedicated file, which > we can > then shove up some other HTTP/2 implementation (starting with Netty > 4.1.29.Final). > > By the way, the test I'm running is [3], modified to run with my > apache-async-client [4]. >
Hi Ryan I will try to find time and help you with the fix whichever way you deem helpful. However I would like to see if I can reproduce the same issue with other HTTP/2 servers such Apache HTTPD, Ngnix or Jetty. Oleg > [1] > https://gist.githubusercontent.com/rschmitt/bd996852c1bb8b56341051e585a4ed93/raw/c0c8bb6d337de3a881ace9bb52ebd55f4bb29dd3/huffman-disabled.txt > [2] > https://gist.githubusercontent.com/rschmitt/311e8413d88ed7cf8450e844fb74df86/raw/66b559eca0eb9bf5d2192a817881a9efdd3c2c1d/huffman-enabled.txt > [3] > https://github.com/aws/aws-sdk-java-v2/blob/master/services/kinesis/src/it/java/software/amazon/awssdk/services/kinesis/SubscribeToShardIntegrationTest.java > [4] https://github.com/aws/aws-sdk-java-v2/pull/1543 --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@hc.apache.org For additional commands, e-mail: dev-h...@hc.apache.org
