Module rpc grpc Future

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RPC gRPC Module - Future Enhancements

Scope

• hardening and refinement of gRPC plugin runtime behavior
• deterministic reliability improvements for lifecycle/credentials/stream paths
• stronger benchmark-backed guardrails for gRPC WAL-apply hot path

Design Constraints

• plugin contracts remain backward compatible within major release line.
• TLS/mTLS and registration outcomes remain explicit and deterministic.
• degraded/reload fault paths remain observable and non-silent.
• metrics/log outputs remain actionable for runtime triage.

Required Interfaces

Interface	Requirement
lifecycle interfaces	deterministic init/start/stop/reload semantics
credential interfaces	fail-closed TLS/mTLS handling with explicit failures
service interfaces	stable service registration and activation contracts
observability interfaces	method-level metrics and structured log visibility

Implementation Notes

• tighten parity between credential reload and active-service safety checks.
• standardize diagnostics for lifecycle/registration/stream incident classes.
• expand resilience tests for prolonged RPC traffic and reload churn.
• broaden benchmark depth for additional gRPC transport workflows.

Test Strategy

• unit and integration suites for lifecycle, credentials, registration, and stream adapter behavior.
• regressions for malformed credential bundles and registration failures.
• deterministic stress runs for long-running RPC traffic with reload events.
• release-profile benchmark runs for mapped WAL-apply gRPC targets.

Performance Targets

• gRPC plugin hot paths remain inside regression budgets.
• WAL-apply and service-lifecycle-sensitive operations remain stable at p95/p99 envelopes.
• mapped benchmark manifests reach no-missing-case status for release gating.

Security / Reliability

• maintain strict validation before TLS/mTLS activation and reload application.
• preserve explicit failure signaling for lifecycle/credential/registration faults.
• enforce bounded behavior under sustained and bursty RPC workloads.
• keep diagnostics actionable for production transport incidents.

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