Alex Kotliarskyi f6a69b5873 Tie gRPC code-mode connection lifetime to live sessions (#59783) ...

## Why

Some hosts assign a worker per connection. Idle connection eviction can prevent a quiet session from reaching the worker holding its lease, while retaining a connection after the last session closes unnecessarily keeps that worker allocated.

## What changed

- Disable the HTTP connection pool idle timeout for gRPC code-mode connections.
- Cache URL-based clients weakly and let live sessions own the shared client, releasing their ownership on closure or failure even while the provider remains alive.
- Acquire clients for deferred RPCs only when needed and return the session error if the client has already been released.

## Testing

Add regression tests that verify connection reuse and stored state after 120 seconds of inactivity, and connection closure after the last shared session fails while the provider and session handles remain alive.

GitOrigin-RevId: bd1ff00c4003c03ed173c23dd2ed373ed354ab65

2026-11-06 01:49:33 +00:00

..

admission_tests.rs

Add code-mode output truncation protocol contracts (#57272)

2026-10-26 21:36:35 +00:00

image_cancellation_tests.rs

Preserve rollout tracing across sub-agent reloads (#57615)

2026-10-28 01:29:34 +00:00

network_policy_tests.rs

Preserve rollout tracing across sub-agent reloads (#57615)

2026-10-28 01:29:34 +00:00

process_metrics_tests.rs

Stabilize cross-platform tests and directory-change fork permissions (#59369)

2026-11-04 09:51:28 +00:00

session_recovery_tests.rs

Tie gRPC code-mode connection lifetime to live sessions (#59783)

2026-11-06 01:49:33 +00:00