Stellar overlay: Mandatory Flow control in bytes

[pieterjan84]

FYI: stellar/stellar-core#4353

Flow control in bytes is now required. Also listed as breaking change in latest pre-release of stellar-core.

Implementation made for Stellarbeat: https://github.com/stellarbeat/js-stellar-node-connector/blob/master/src/connection/flow-controller.ts

If I'm mistaking that this is an issue for your project, please ignore :-)

[prayagd]

Thank you @pieterjan84 for raising the issue.

cc @pendulum-chain/devs is this relevant for us?

[b-yap]

Yes it is an issue:

Error occurred during processing xdr message: ConfigError("Error{ code:ErrConf message:flow control bytes disabled }")

It appears when running the test (given the environment file and the json config files were setup):

RUST_LOG=info cargo run --example connect

Thank you once again @pieterjan84 !

[ebma]

This was fixed in #550 but we forgot to close it.