Repair WebSocket Ping Pong Timeout Cascade

Repair WebSocket Ping Pong Timeout Cascade — EVIDENCE-LIMITED REVIEW

Scenario received

Thousands of active browser sessions disconnect together during short server event loop stalls.

Evidence inventory

• S1: WebSocket client heartbeat traces — partial extract described by the requester; original full source not provided here.
• S2: proxy idle timeout configuration — partial extract described by the requester; original full source not provided here.
• S3: server event loop latency — NOT PROVIDED; required to validate dependent findings.
• S4: connection close codes — NOT PROVIDED; required to validate dependent findings.

Case-specific checks

Align heartbeat interval with network policy. INCOMPLETE until matching source anchors can be examined; document the observable facts, counterexamples and decision gate.
2.

Distinguish idle closes from stalls. INCOMPLETE until matching source anchors can be examined; document the observable facts, counterexamples and decision gate.
3.

Identify synchronized reconnect bursts. INCOMPLETE until matching source anchors can be examined; document the observable facts, counterexamples and decision gate.
4.

Test jittered recovery under loss. INCOMPLETE until matching source anchors can be examined; document the observable facts, counterexamples and decision gate.

Deliverables

Heartbeat failure timeline. Create an evidence-linked section with observations, missing data, owner and next validation step.

Keepalive tuning proposal. Create an evidence-linked section with observations, missing data, owner and next validation step.

Reconnect load test matrix. Create an evidence-linked section with observations, missing data, owner and next validation step.

Acceptance gate

A repair limits reconnection storms while preserving liveness detection and session boundaries. Do not label this gate passed until supplied source records actually demonstrate it.

Verdict and next action

INCOMPLETE — evidence required. Request S3 and S4 from the authorized owner, reconcile them with S1 and S2, then repeat the four checks and log remaining conflicts. No production change, approval, communication, or test run is claimed.