[java-storage] Feature request: expose ChannelPoolSettings on GrpcStorageOptions.Builder

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@Dhriti07 já está trabalhando nisso.

Desde 29/9/2026.

  • #3556 de @DeepikaMamidipelly009 — fechado sem integrar

Avaliação

Dificuldade
3/5
Tempo estimado
1-2 dias
Facilidade para iniciantes
76/100
Tipo de issue
Funcionalidade
Clareza
Claramente especificada
Status de atividade
Pouca atividade
Stack de tecnologia
grpc, java
Domínio
api, backend, cloud

Direção de pesquisa

Start in GrpcStorageOptions.Builder and follow resolveSettingsAndOpts() to see how InstantiatingGrpcChannelProvider is configured. Add the ChannelPoolSettings builder option, wire it through while preserving the unset default, and verify that the high-level Storage API exposes the configured pool settings.

Escrita pelo modelo de indexação a partir do texto da issue.

Descrição

api: storage

Is your feature request related to a problem? Please describe.

We use StorageOptions.grpc() with Direct Path on GKE for high-throughput writes (WriteChannel, resumable uploads). A single commit can trigger hundreds of concurrent uploads per pod.

GrpcStorageOptions builds InstantiatingGrpcChannelProvider without setChannelPoolSettings(), so the default is effectively one gRPC channel. With ~100+ concurrent RPCs, calls queue on that channel and we see high tail latency and underused bandwidth.

ChannelPoolSettings can be set on StorageSettings + StorageClient, but the high-level Storage API from StorageOptions.grpc().build().getService() offers no way to pass those settings.

(google-cloud-storage 2.34.0+, resolves to 2.55.x in our build.)

Describe the solution you'd like

Add setChannelPoolSettings(ChannelPoolSettings) to GrpcStorageOptions.Builder, wired through to InstantiatingGrpcChannelProvider in resolveSettingsAndOpts(). Default unchanged when unset.

Storage storage = StorageOptions.grpc()
    .setProjectId(projectId)
    .setChannelPoolSettings(ChannelPoolSettings.builder()
        .setInitialChannelCount(8)
        .setMaxChannelCount(16)
        .setMaxRpcsPerChannel(50)
        .build())
    .build()
    .getService();

Describe alternatives you've considered

  • StorageClient + custom StorageSettings — channel pool works, but not compatible with high-level Storage / WriteChannel.
  • Copy resolveSettingsAndOpts() in app code — fragile.
  • Upload concurrency limit in app — does not fix single-channel RPC queuing.
Linguagem predominante
Java
Estrelas
2.1k
Forks
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Merge médio
2d 14h
PRs com merge (30d)
192

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