grpc: add new Dial/ServerOptions to set the size like the existing ones, but which do not also disable BDP esimation

[janardhanvissa]

Partially addresses: #7923

RELEASE NOTES:

• grpc: add new Dial/ServerOptions to set the size like the existing ones, but which do not also disable BDP esimation

[purnesh42H]

@janardhanvissa could you add more details why is it partially addressing the issue?

[janardhanvissa]

@janardhanvissa could you add more details why is it partially addressing the issue?

As per the proposal by Doug, the changes to the existing WithInitialWindowSize and InitialWindowSize options should be delayed for two releases. This delay ensures backward compatibility and gives users adequate time to adjust to the changes.

[purnesh42H]

@dfawley in the issue its mentioned that new options "Add new Dial/ServerOptions to set the size like the existing ones, but which do not also disable BDP esimation". What are the existing options? How do they disable bdp estimation currently?

[dfawley]

What are the existing options? How do they disable bdp estimation currently?

They are mentioned briefly in the proposal in the second comment:

And mark WithInitialWindowSize and InitialWindowSize as deprecated.

How do they disable it? By passing configuration that the transport sees and disables BDP estimation. E.g. for the client:

grpc-go/internal/transport/http2_client.go

Line 315 in 67bee55

dynamicWindow = false

This PR, as-is, will not have any actual effect, so it needs work to pass these settings to the transport and make the transport use them correctly.