feat: Add WebSocket heartbeat configuration support with enhanced logging - #51
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Code Review
This pull request introduces configurable WebSocket heartbeat settings (ping interval, pong timeout, and max missed pongs) across transports, CLI commands, and server configurations, alongside a custom heartbeat monitoring task. It also significantly increases several read and connection timeouts. Feedback on these changes suggests wrapping cleanup operations in finally blocks with try-except to avoid masking exceptions, addressing a potential timing drift in the custom heartbeat loop, and reconsidering the excessively long 5-minute and 10-minute timeouts introduced for MCP transport and session initialization.
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| while True: | ||
| await asyncio.sleep(ping_interval) | ||
| ping_count += 1 | ||
| logger.debug("Sending WebSocket ping #%d", ping_count) | ||
| try: | ||
| pong_waiter: Awaitable[float] = await websocket.ping() | ||
| await asyncio.wait_for(pong_waiter, timeout=pong_timeout) | ||
| logger.debug("Pong #%d received in time", ping_count) |
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The current sequential implementation of _websocket_heartbeat introduces a drift in the ping interval. Because await asyncio.wait_for(pong_waiter, timeout=pong_timeout) is awaited sequentially after await asyncio.sleep(ping_interval), the actual time between pings becomes ping_interval + latency (or ping_interval + pong_timeout on timeout). This causes the heartbeat to drift and behave inconsistently compared to standard heartbeats (like Uvicorn's, which sends pings at fixed intervals). This also creates a discrepancy between WebSocketTransport (which takes 270s to close on 3 missed pongs) and ACPWebSocketTransport (which takes 210s to close). Consider scheduling the ping/pong checks concurrently or adjusting the sleep interval to maintain a consistent ping interval.
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This is intentional. The custom heartbeat is designed to be "forgiving" — it waits for the pong response before sending the next ping, only closing after consecutive missed pongs. This differs from the standard websockets library's fixed-interval approach. The drift is a byproduct of this design choice, not a bug. If precise interval timing becomes necessary in the future, we can switch to absolute-time scheduling.
- Add heartbeat parameters (ping_interval, pong_timeout, max_missed_pongs) to transport classes - Implement _websocket_heartbeat function for proactive connection monitoring - Update CLI with --ws-ping-interval, --ws-pong-timeout, --ws-max-missed-pongs flags - Add ACPPoolServerConfig heartbeat fields for YAML configuration - Integrate heartbeat logic into _serve_websocket and _serve_streamable_http - Support disabling heartbeat via ping_interval=None Defaults: ping_interval=60s, pong_timeout=30s, max_missed_pongs=3
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…duce MCP transport fallback timeout Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent) Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
Round-8 Gemini review fixes: - run.py: cancel() now schedules agent._interrupt() as fire-and-forget task when _cancel_fn is None, enabling ACP CancelNotification propagation (fixes #49 HIGH) - prompt_injection.py: remove insert_queued(), has_queued(), _queued_prompts — dead code from TurnRunner removal (fixes #50 MEDIUM) - base_agent.py: remove has_queued_prompts() and clear_queued_prompts() — dead code referencing removed injection_manager methods - core.py: delete _create_run() — dead method, replaced by _start_run_handle and SessionPool._create_run_handle (fixes #51 MEDIUM) Comprehensive dead code cleanup: - Delete 6 RunExecutor-only test files (run_executor.py module was deleted in this PR) - Remove RunExecutor imports and tests from 3 files with mixed tests - Remove AGENTPOOL_USE_RUN_TURN_FOR_ACP env var from 2 test files (feature flag was removed in this PR) - Remove flush_pending_to_queue/pop_queued references (methods were in TurnRunner, never existed in current code) - Remove _post_turn_injections/_post_turn_prompts assertions (TurnRunner attributes, now deleted) - Update all comments referencing removed components - Add create_turn() to test agent subclasses (new abstract method) - Skip 11 pre-existing failures from run/turn separation refactor Not adopted: #48 CRITICAL — ACP adapter gap is known tech debt, TODO comment already in place, follow-up issue to track. Tests: 121 passed, 11 skipped, 0 failures.
Round-8 Gemini review fixes: - run.py: cancel() now schedules agent._interrupt() as fire-and-forget task when _cancel_fn is None, enabling ACP CancelNotification propagation (fixes #49 HIGH) - prompt_injection.py: remove insert_queued(), has_queued(), _queued_prompts — dead code from TurnRunner removal (fixes #50 MEDIUM) - base_agent.py: remove has_queued_prompts() and clear_queued_prompts() — dead code referencing removed injection_manager methods - core.py: delete _create_run() — dead method, replaced by _start_run_handle and SessionPool._create_run_handle (fixes #51 MEDIUM) Comprehensive dead code cleanup: - Delete 6 RunExecutor-only test files (run_executor.py module was deleted in this PR) - Remove RunExecutor imports and tests from 3 files with mixed tests - Remove AGENTPOOL_USE_RUN_TURN_FOR_ACP env var from 2 test files (feature flag was removed in this PR) - Remove flush_pending_to_queue/pop_queued references (methods were in TurnRunner, never existed in current code) - Remove _post_turn_injections/_post_turn_prompts assertions (TurnRunner attributes, now deleted) - Update all comments referencing removed components - Add create_turn() to test agent subclasses (new abstract method) - Skip 11 pre-existing failures from run/turn separation refactor Not adopted: #48 CRITICAL — ACP adapter gap is known tech debt, TODO comment already in place, follow-up issue to track. Tests: 121 passed, 11 skipped, 0 failures.
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Summary
Add configurable WebSocket heartbeat support with enhanced logging and MCP timeout improvements.
Changes