Reactive Rest client can not upload files bigger, than 2G

[fedinskiy]

Describe the bug

Quarkus Rest Reactive client fails with OutOfMemory error when uploading files bigger than 2G.

Expected behavior

Reactive client should be able to process files of any size.

Actual behavior

Sending fails with HTTP Request to /client-wrapper/upload-file failed, error id: 6fdd4d92-5bb6-49df-bd70-c5e3671bbad3-1: java.lang.OutOfMemoryError

How to Reproduce?

1. git clone git@github.com:fedinskiy/quarkus-test-suite.git -b reproducer/reactive-rest-client
2. cd quarkus-test-suite/http/rest-client-reactive
3. mvn clean verify -Dit.test=FileIT#uploadFile

Output of uname -a or ver

5.16.13-200.fc35.x86_64

Output of java -version

11.0.12, vendor: GraalVM Community

GraalVM version (if different from Java)

No response

Quarkus version or git rev

2.7.4.Final

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

Apache Maven 3.8.4 (9b656c72d54e5bacbed989b64718c159fe39b537)

Additional information

See also #24402 for the same error on downloading.

[quarkus-bot]

/cc @michalszynkiewicz

[fedinskiy]

When File is passed through multipart, the client fails with much more informative Request Entity Too Large. Steps to reporduce are the same, but last step should look like that: mvn clean verify -Dit.test=FileIT#uploadMultipart

[gsmet]

@michalszynkiewicz a lot of APIs out there allow to download files (typically the GitHub API).

[geoand]

I'll have a look at the regular file upload part

[geoand]

When File is passed through multipart, the client fails with much more informative Request Entity Too Large

This is a message returned by the Server. You need to configure Quarkus with something like: quarkus.http.limits.max-body-size=2050m.
See this for more information