I have a weird issue. Using openssl v1.0.2h and libnghttp2 v1.24.0 I coded a service interacting with AVS. All is fine until I ask Alexa something that will imply a "long" answer like "Alexa good morning" where it will give trivia about the day.
Everything starts fine, on_data_chunk_recv_callback is called twice or three times then stall indefinitely. The connection file descriptor returns from its select and SSL_Read returns a WANT_READ error. And it will stay that way until the service sends a PING request that will magically unlock everything.
So my question is, am I configuring Openssl wrong? Is there an issue in the window size management in nghttp2 that somehow fails?
If it can help the latest case I add like that had the x-amzn-requestid 0a81a6fffe1aed38-00002510-00013678-bbef8cad62194440-6379dbb0-5