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0a14522 849b14a 0a14522 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 | from __future__ import annotations
import uuid
from typing import Dict, Any, List
from models import Action, ActionType
from tasks.base import BaseTask, InternalState, StepOutput, semantic_match
INCIDENT_TIME = "2026-04-12T14:22:00Z"
DEPENDENCIES = [
{"service": "api-gateway", "calls": ["order-service", "user-service"], "called_by": []},
{"service": "order-service", "calls": ["postgres-primary"], "called_by": ["api-gateway"]},
{"service": "analytics-service", "calls": ["postgres-primary"], "called_by": []},
{"service": "postgres-primary", "calls": [], "called_by": ["order-service", "analytics-service"]},
{"service": "user-service", "calls": [], "called_by": ["api-gateway"]},
]
POSTGRES_LOGS = [
"[14:22:01] SLOW_QUERY 4281ms: SELECT * FROM orders WHERE user_segment='premium' LIMIT 100 [seq_scan: 18M rows]",
"[14:22:03] SLOW_QUERY 4190ms: SELECT COUNT(*) FROM orders WHERE user_segment='standard' [seq_scan: 18M rows]",
"[14:22:05] SLOW_QUERY 4350ms: SELECT order_id, total FROM orders WHERE user_segment='enterprise' [seq_scan: 18M rows]",
"[14:22:07] INFO MISSING INDEX DETECTED: orders.user_segment has no index (added in migration 20260425_add_user_segment)",
"[14:22:08] WARN Table scan count: 847/min (normal: 2/min) — index missing on hot column",
"[14:22:09] SLOW_QUERY 4401ms: SELECT * FROM orders WHERE user_segment='premium' AND created_at > '2026-04-01' [seq_scan]",
]
ORDER_LOGS = [
"[14:22:01] WARN DB query timeout: getOrdersBySegment() exceeded 5000ms",
"[14:22:02] ERROR Failed to fetch orders for dashboard: upstream DB timeout",
"[14:22:05] WARN Retry 1/3: getOrdersBySegment() - 4300ms",
"[14:22:09] ERROR Circuit breaker OPEN for postgres-primary read replica",
]
ANALYTICS_LOGS = [
"[14:22:00] INFO Starting hourly aggregation job: orders by user_segment",
"[14:22:04] WARN Aggregation query running slow: 4100ms elapsed (expected: 80ms)",
"[14:22:08] ERROR Aggregation job timed out after 300s — will retry in 60min",
"[14:22:09] INFO Root cause likely: orders table scan (no index on user_segment)",
]
class DatabaseTask(BaseTask):
def initialize(self) -> InternalState:
logs = {
"postgres-primary": POSTGRES_LOGS[:],
"order-service": ORDER_LOGS[:],
"analytics-service": ANALYTICS_LOGS[:],
"api-gateway": ["[14:22:05] WARN Upstream order-service latency 4600ms"],
"user-service": ["[14:22:00] INFO Service normal"],
}
services = {
"postgres-primary": {
"name": "postgres-primary", "status": "degraded",
"cpu_percent": 94.0, "memory_percent": 65.0,
"error_rate": 0.0, "latency_p99_ms": 4401.0,
"replicas_running": 1, "replicas_desired": 1,
"current_version": "v14.1", "last_deployed": "2025-01-01T00:00:00Z",
"minutes_degraded": 15, "sla_breach": False,
},
"order-service": {
"name": "order-service", "status": "degraded",
"cpu_percent": 35.0, "memory_percent": 45.0,
"error_rate": 2.5, "latency_p99_ms": 4800.0,
"replicas_running": 3, "replicas_desired": 3,
"current_version": "v2.1.0", "last_deployed": "2026-03-20T08:00:00Z",
"minutes_degraded": 15, "sla_breach": False,
},
"analytics-service": {
"name": "analytics-service", "status": "degraded",
"cpu_percent": 25.0, "memory_percent": 30.0,
"error_rate": 5.0, "latency_p99_ms": 300000.0,
"replicas_running": 1, "replicas_desired": 1,
"current_version": "v1.5.0", "last_deployed": "2026-04-10T11:00:00Z",
"minutes_degraded": 15, "sla_breach": False,
},
"api-gateway": {
"name": "api-gateway", "status": "degraded",
"cpu_percent": 45.0, "memory_percent": 45.0,
"error_rate": 1.5, "latency_p99_ms": 4600.0,
"replicas_running": 5, "replicas_desired": 5,
"current_version": "v3.1.0", "last_deployed": "2026-03-20T08:00:00Z",
"minutes_degraded": 15, "sla_breach": False,
},
"user-service": {
"name": "user-service", "status": "healthy",
"cpu_percent": 15.0, "memory_percent": 30.0,
"error_rate": 0.0, "latency_p99_ms": 25.0,
"replicas_running": 2, "replicas_desired": 2,
"current_version": "v1.1.2", "last_deployed": "2026-03-01T00:00:00Z",
"minutes_degraded": 0, "sla_breach": False,
},
}
alerts = [
{
"id": "D001", "severity": "critical", "service": "order-service",
"message": "P99 latency 4800ms (threshold: 500ms)",
"timestamp": "2026-04-12T14:22:05Z", "acknowledged": False,
},
{
"id": "D002", "severity": "critical", "service": "analytics-service",
"message": "Hourly aggregation job timed out",
"timestamp": "2026-04-12T14:22:08Z", "acknowledged": False,
},
{
"id": "D003", "severity": "warning", "service": "postgres-primary",
"message": "CPU 94% sustained 15min, high sequential scan rate",
"timestamp": "2026-04-12T14:22:07Z", "acknowledged": False,
},
{
"id": "D004", "severity": "warning", "service": "api-gateway",
"message": "Upstream order-service latency 4600ms",
"timestamp": "2026-04-12T14:22:09Z", "acknowledged": False,
},
]
state = InternalState(
episode_id=str(uuid.uuid4()), task_id="database", step=0, max_steps=20,
services=services, alerts=alerts, logs=logs,
action_history=[], total_reward=0.0, incident_resolved=False,
ground_truth_root_cause="missing_index_orders_user_segment_column_migration",
ground_truth_fix="create index on orders.user_segment OR rollback migration",
incident_start_time=INCIDENT_TIME,
healthy_services=["user-service"],
service_dependencies=DEPENDENCIES,
)
return state
def step(self, state: InternalState, action: Action) -> StepOutput:
state.step += 1
state._apply_sla_degradation()
at = action.action_type
svc = action.service or ""
reward = 0.0
done = False
info: Dict[str, Any] = {}
result_text, error_text = self._apply_action_to_logs(state, action)
# Custom read_metrics response for postgres-primary
if at == ActionType.READ_METRICS and svc == "postgres-primary":
s = state.services[svc]
result_text = (
f"=== Metrics: postgres-primary ===\n"
f"Status: {s['status'].upper()}\n"
f"CPU: {s['cpu_percent']:.1f}% (normal: 15%)\n"
f"Memory: {s['memory_percent']:.1f}%\n"
f"Sequential scans/min: 847 (normal: 2)\n"
f"Index scans/min: 12 (normal: 890)\n"
f"Active queries: 48 (normal: 8)\n"
f"Longest running query: {s['latency_p99_ms']:.0f}ms\n"
f"Last migration: 20260425_add_user_segment (14:07:00, 15 min ago)\n"
)
state.evidence_log.append({
"step": state.step,
"source": f"metrics:{svc}",
"summary": "postgres-primary: cpu=94%, seq_scans=847/min, normal=2/min",
"raw": result_text,
})
gather_map = {
("read_logs", "postgres-primary"): ("rl_pg", 0.10),
("search_logs", "postgres-primary"): ("rl_pg", 0.10),
("read_metrics", "postgres-primary"): ("rm_pg", 0.10),
("read_logs", "analytics-service"): ("rl_ana", 0.05),
("search_logs", "analytics-service"): ("rl_ana", 0.05),
}
k = (at.value, svc)
if k in gather_map:
tag, r = gather_map[k]
if tag not in state.rewards_given:
reward += r; state.rewards_given.add(tag)
if at == ActionType.READ_RUNBOOK:
if "runbook_any" not in state.rewards_given:
reward += 0.05; state.rewards_given.add("runbook_any")
if at == ActionType.DIAGNOSE:
rc = action.root_cause or ""
if semantic_match(rc, ["index", "migration", "user_segment", "seq_scan", "table scan"]):
if "diagnose_correct" not in state.rewards_given:
reward += 0.20; state.rewards_given.add("diagnose_correct")
result_text = f"Diagnosis recorded: {rc}"
if at == ActionType.CREATE_INDEX:
table = (action.table or "").lower()
column = (action.column or "").lower()
if table == "orders" and "user_segment" in column:
if "fix_index" not in state.rewards_given:
reward += 0.30; state.rewards_given.add("fix_index")
result_text = f"Successfully created index on {table}.{column}. Sequential scans dropped. Query latency normalizing."
state.services["postgres-primary"]["cpu_percent"] = 18.0
state.services["postgres-primary"]["latency_p99_ms"] = 12.0
state.incident_resolved = True; done = True; info["resolution"] = "incident_resolved"
else:
reward -= 0.10
result_text = f"Created index on {table}.{column}, but it had no effect on the ongoing sequential scans."
if at == ActionType.ROLLBACK and svc == "postgres-primary":
if "fix_index" not in state.rewards_given:
reward += 0.20; state.rewards_given.add("fix_index")
result_text = "Migration rolled back. user_segment column removed. Service queries failing back to old schema, but database CPU returning to normal."
state.services["postgres-primary"]["cpu_percent"] = 18.0
state.services["postgres-primary"]["latency_p99_ms"] = 12.0
state.incident_resolved = True; done = True; info["resolution"] = "incident_resolved"
if at == ActionType.RESTART_SERVICE:
reward -= 0.10
result_text = f"Restarted {svc}. Connection pool dropped but immediately overwhelmed again by slow queries missing index."
if at == ActionType.SCALE_UP:
reward -= 0.08
result_text = f"Scaled up {svc}. More workers are now hitting the database, worsening the CPU starvation."
if at == ActionType.NOOP and state.step > 5:
reward -= 0.03
if at in (ActionType.BLOCK_IP_RANGE, ActionType.FAILOVER):
reward -= 0.10
error_text = f"Action {at.value} is not applicable to this incident."
state.total_reward = self._clamp(state.total_reward + reward)
if state.step >= state.max_steps and not done:
done = True; info["reason"] = "max_steps_reached"
obs = state._build_observation(last_action_result=result_text, last_action_error=error_text)
state.action_history.append({"step": state.step, "action": action.model_dump(), "reward": round(reward, 4)})
return StepOutput(next_state=state, reward=round(reward, 4), done=done, info=info)
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