Quarkus Vert.x GRPC client hangs on big messages.

[alex-pumpkin]

Describe the bug

After resolving this vertx-grpc issue Quarkus GRPC client hangs on big messages.

Expected behavior

The client should produce some kind of error.

Actual behavior

It hangs forever without completion.

How to Reproduce?

I have a small reproducer with test failing on timeout https://github.com/alex-pumpkin/quarkus-grpc-client-hangs-reproducer

Output of uname -a or ver

Linux ap 5.15.0-121-generic #131-Ubuntu SMP Fri Aug 9 08:29:53 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux

Output of java -version

openjdk version "17.0.12" 2024-07-16 OpenJDK Runtime Environment (build 17.0.12+7-Ubuntu-1ubuntu222.04) OpenJDK 64-Bit Server VM (build 17.0.12+7-Ubuntu-1ubuntu222.04, mixed mode, sharing)

Quarkus version or git rev

3.15.2

Build tool (ie. output of mvnw --version or gradlew --version)

Apache Maven 3.6.3 (cecedd343002696d0abb50b32b541b8a6ba2883f)

Additional information

No response

[quarkus-bot]

/cc @alesj (grpc), @cescoffier (grpc)

[cescoffier]

@alex-pumpkin was this fixed by your recent PR?

[alex-pumpkin]

@cescoffier no.
My reproducer is fixed, because default limit is 4MB now. But it still hangs if message is larger.

Vertx GRPC client just sends reset to the stream but does not emit any error.

"Legacy" client returns StatusRuntimeException with CANCELLED status when message exceeds the limit

[cescoffier]

@vietj, is this an expected difference in behavior?

[vietj]

thanks for the reproducer, I'll have a look at it from the vertx side