envoyproxy / envoyproxy/envoy

Compression and decompression of gRPC through envoy proxy

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#41,893 5 comments 0 reactions 1 assignee Claimed by @cpreciad View on GitHub
area/compression area/http bug help wanted no stalebot
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Description

What is the proper way to use Envoy to compress and decompress `application/grpc`?

**Description**
I am trying to compress and decompress `application/grpc` through 2 envoy proxies. One handling the compression and one the decompression. However, I find through Wireshark that the Envoy Decompressor filter breaks the gRPC protocol by failing to set the `END_STREAM` flag on the final DATA frame, which causes the backend server to immediately send a TCP Reset.

> [A similar issue](https://github.com/envoyproxy/envoy/issues/6292) has been opened since 2019 but not resolved.

Given this issue, what is the most stable and reliable implementation of compression and decompression through Envoy? Is implementing a header mutation filter to remove the trailers the recommended solution?

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