INC178379212033315

P1resolvedai_assisted

orders-service reporting connection pool exhaustion against orders-db

Pipeline Status

Context Assembly

Diagnose Agent

Severity / Routing Agent

Scenario Match

Remediate Agent

Confidence Gate

Gate Decisionveto timeout executed

Execute Action

Verify Agent

Resolution

Assembled Context — bounded to last 30 minutes

Rolling logs

[orders-service] ERROR HikariPool-1 - Connection is not available, request timed out after 30000ms

[orders-service] WARN active connections 100/100

[orders-db] INFO max_connections 200, current 198

[orders-service] ERROR 504 Gateway Timeout on /v1/orders

Recent commits

(none in lookback window)

Similar past incidents

INC178096353296025 · database/P1 · 33d ago — orders-service reporting connection pool exhaustion against orders-db

INC177635354140634 · database/P2 · 86d ago — users-db read replica lag exceeding 90s after migration

INC178026679020738 · database/P2 · 41d ago — users-db read replica lag exceeding 90s after migration

Diagnosis Agent

ran in parallel

The orders-service’s Hikari connection pool (max 100) is saturated, causing requests to wait and time‑out; the database is also near its max connections (198/200), so the service cannot acquire new DB connections, leading to 504 errors.

[orders-service] ERROR HikariPool-1 - Connection is not available, request timed out after 30000ms
[orders-service] WARN active connections 100/100
[orders-db] INFO max_connections 200, current 198
[orders-service] ERROR 504 Gateway Timeout on /v1/orders

Assessed: P2 / application

Self-reported confidence: 90% (audit-only — not used by the gate)

openai/gpt-oss-120b · 1487ms

Severity / Routing Agent

ran in parallel

P2 / database

Routed to: database-reliability-team

The logs indicate connection pool exhaustion specifically within the orders-service despite the database itself having additional capacity, suggesting a configuration mismatch or query performance bottleneck. Since the orders-service is failing to serve traffic, this represents a significant degradation of a core business function.

Self-reported confidence: 95% (audit-only — not used by the gate)

gemini-flash-lite-latest · 988ms

Scenario Matcher

deterministic, pre-LLM

Connection pool exhaustion

Connection pool exhaustion on the application tier is typically cleared by restarting the affected service to release stale connections.

Match score: 86% · Recommended action: restart_service

Matched tags: connection pool, exhaustion, timeout

Remediate Agent

grounded by runbook match, pre-gate

Proposed action: restart_service

team: database-reliability-team · reason: Connection pool exhaustion leading to 504 errors. · message: Restarting orders-service to clear saturated Hikari connection pool. · serviceName: orders-service · justification: Restart releases stale DB connections and resets pool.

The runbook recommends restarting the affected service to clear the exhausted connection pool. No other action (e.g., scaling or rollback) addresses the immediate symptom. Restarting orders-service will release the held DB connections, allowing new requests to succeed.

openai/gpt-oss-120b · 1586ms

Confidence Gate

veto_timeout_executed

Computed from 4 measurable signals — not the model's self-reported confidence.

Severity match rate50%

Runbook coverage86%

Data completeness67%

Recency63%

Computed confidence (v1)67%

Auto-execute threshold: 75%

Proposed action: restart_service

Verify Agent

runs after execution

Resolved · residual risk: medium

Follow-up: notify_oncall

The service restart cleared the connection pool and restored connectivity. However, connection pool exhaustion is often a symptom of an underlying issue like a memory leak, suboptimal query performance, or insufficient connection limits. The incident is resolved for now, but there is a risk of recurrence, necessitating investigation by an on-call engineer.

Self-reported confidence: 85% (audit-only — not used by the gate)

gemini-flash-lite-latest · 1070ms