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06b4790 77eea12 06b4790 849b14a 06b4790 | 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 | 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 = "2026-03-30T10:32:01Z"
DEPENDENCIES = [
{"service": "api-gateway", "calls": ["order-service", "user-service"], "called_by": []},
{"service": "order-service", "calls": ["inventory-service"], "called_by": ["api-gateway"]},
{"service": "inventory-service", "calls": ["db-primary"], "called_by": ["order-service"]},
{"service": "notification-service", "calls": [], "called_by": []},
{"service": "user-service", "calls": [], "called_by": ["api-gateway"]},
]
# Cascading scenarios — 3 different root services that can fail
SCENARIOS = [
{
"root_service": "inventory-service",
"root_cause_template": "connection_pool_exhaustion_{service}_{version}",
"fix_template": "rollback {service}",
"error_type": "connection_pool",
"diagnosis_keywords": ["connection", "pool", "hikari", "db", "database", "exhaustion", "inventory"],
"fix_action": ActionType.ROLLBACK,
},
{
"root_service": "inventory-service",
"root_cause_template": "null_pointer_exception_{service}_{version}",
"fix_template": "rollback {service}",
"error_type": "null_pointer",
"diagnosis_keywords": ["null", "nullpointer", "npe", "exception", "inventory", "bug", "crash"],
"fix_action": ActionType.ROLLBACK,
},
]
INV_LOGS_CONNECTION = [
"[10:31:58] INFO Deployment inventory-service:{version} complete - 12 pods running",
"[10:32:01] INFO Health check passed for inventory-service:{version}",
"[10:32:38] ERROR Failed to acquire connection from pool: timeout after 30000ms",
"[10:32:39] ERROR HikariPool-1 - Connection is not available, request timed out",
"[10:32:40] ERROR Connection pool exhausted (max=10, active=10, waiting=47)",
"[10:32:42] WARN Retry attempt 1/3 failed for getInventory(productId=1982)",
"[10:32:46] WARN Retry attempt 3/3 failed - returning error upstream",
"[10:32:48] ERROR Thread pool saturation: 98/100 threads active, queue depth 412",
]
INV_LOGS_NPE = [
"[10:31:58] INFO Deployment inventory-service:{version} complete",
"[10:32:01] INFO Health check passed for inventory-service:{version}",
"[10:32:35] ERROR NullPointerException: Cannot invoke method getStock() on null object",
"[10:32:35] ERROR at InventoryService.checkAvailability(InventoryService.java:218)",
"[10:32:36] ERROR at InventoryController.getInventory(InventoryController.java:87)",
"[10:32:37] WARN Exception rate 38/min - circuit breaker threshold approaching",
"[10:32:42] ERROR Circuit breaker OPEN - too many NullPointerExceptions",
"[10:32:45] ERROR getInventory returning 500 for all requests",
]
ORDER_LOGS = [
"[10:32:30] INFO Order created: order_id=ORD-8821 status=confirmed",
"[10:32:45] WARN inventory-service call timed out after 5000ms",
"[10:32:49] ERROR Order creation failed: upstream dependency unavailable",
"[10:32:50] ERROR Circuit breaker OPEN for inventory-service endpoint",
"[10:32:51] WARN Falling back to cached inventory data (may be stale)",
]
GATEWAY_LOGS = [
"[10:32:20] INFO POST /api/v1/orders 200 142ms",
"[10:32:50] WARN POST /api/v1/orders upstream latency 5800ms",
"[10:32:55] ERROR POST /api/v1/orders 503 Service Unavailable",
"[10:32:56] WARN Error rate for /api/v1/orders: 18% (threshold: 5%)",
]
NOTIF_LOGS = [
"[10:30:00] INFO Batch email job started: 48000 recipients",
"[10:31:30] INFO Sent 24000/48000 emails",
"[10:33:00] INFO Batch email job complete: 48000 sent, 0 failed",
]
USER_LOGS = ["[10:32:00] INFO GET /users/profile 200 9ms",
"[10:33:00] INFO GET /users/profile 200 10ms"]
class MediumTask(BaseTask):
def initialize(self) -> InternalState:
scenario = SCENARIOS[self.rng.randint(0, len(SCENARIOS) - 1)]
bad_ver = f"v2.3.{self.rng.randint(1, 5)}"
root_svc = scenario["root_service"]
if scenario["error_type"] == "connection_pool":
inv_logs = [l.replace("{version}", bad_ver) for l in INV_LOGS_CONNECTION]
else:
inv_logs = [l.replace("{version}", bad_ver) for l in INV_LOGS_NPE]
logs = {
"inventory-service": inv_logs,
"order-service": ORDER_LOGS[:],
"api-gateway": GATEWAY_LOGS[:],
"notification-service": NOTIF_LOGS[:],
"user-service": USER_LOGS[:],
}
services = {
"api-gateway": {
"name": "api-gateway", "status": "degraded",
"cpu_percent": round(self.rng.uniform(55, 70), 1),
"memory_percent": round(self.rng.uniform(48, 60), 1),
"error_rate": round(self.rng.uniform(3.5, 6.0), 2),
"latency_p99_ms": round(self.rng.uniform(4500, 6500), 0),
"replicas_running": 2, "replicas_desired": 2,
"current_version": "v3.1.0", "last_deployed": "2026-03-20T08:00:00Z",
"minutes_degraded": 0, "sla_breach": False,
},
"order-service": {
"name": "order-service", "status": "degraded",
"cpu_percent": round(self.rng.uniform(60, 75), 1),
"memory_percent": round(self.rng.uniform(55, 68), 1),
"error_rate": round(self.rng.uniform(4.0, 8.0), 2),
"latency_p99_ms": round(self.rng.uniform(5000, 7000), 0),
"replicas_running": 3, "replicas_desired": 3,
"current_version": "v1.8.2", "last_deployed": "2026-03-22T10:00:00Z",
"minutes_degraded": 0, "sla_breach": False,
},
"inventory-service": {
"name": "inventory-service", "status": "degraded",
"cpu_percent": round(self.rng.uniform(80, 95), 1),
"memory_percent": round(self.rng.uniform(70, 85), 1),
"error_rate": round(self.rng.uniform(12.0, 20.0), 2),
"latency_p99_ms": round(self.rng.uniform(28000, 35000), 0),
"replicas_running": 3, "replicas_desired": 3,
"current_version": bad_ver, "last_deployed": "2026-03-30T10:31:58Z",
"minutes_degraded": 0, "sla_breach": False,
},
"notification-service": {
"name": "notification-service", "status": "healthy",
"cpu_percent": round(self.rng.uniform(82, 92), 1),
"memory_percent": round(self.rng.uniform(55, 65), 1),
"error_rate": 0.0,
"latency_p99_ms": round(self.rng.uniform(20, 45), 0),
"replicas_running": 2, "replicas_desired": 2,
"current_version": "v1.2.0", "last_deployed": "2026-03-15T16:00:00Z",
"minutes_degraded": 0, "sla_breach": False,
},
"user-service": {
"name": "user-service", "status": "healthy",
"cpu_percent": round(self.rng.uniform(20, 35), 1),
"memory_percent": round(self.rng.uniform(30, 42), 1),
"error_rate": 0.0,
"latency_p99_ms": round(self.rng.uniform(8, 20), 0),
"replicas_running": 2, "replicas_desired": 2,
"current_version": "v3.0.5", "last_deployed": "2026-03-18T09:00:00Z",
"minutes_degraded": 0, "sla_breach": False,
},
}
alerts = [
{
"id": "A010", "severity": "critical", "service": "api-gateway",
"message": "Error rate on /api/v1/orders exceeded 15% threshold",
"timestamp": "2026-03-30T10:32:56Z", "acknowledged": False,
},
{
"id": "A011", "severity": "critical", "service": "order-service",
"message": "Order creation failure rate 31% - circuit breaker triggered for inventory-service",
"timestamp": "2026-03-30T10:32:51Z", "acknowledged": False,
},
{
"id": "A012", "severity": "warning", "service": "inventory-service",
"message": f"P99 latency 32100ms (threshold: 5000ms) - deployed {bad_ver} at 10:31",
"timestamp": "2026-03-30T10:32:48Z", "acknowledged": False,
},
# Red herring
{
"id": "A013", "severity": "warning", "service": "notification-service",
"message": "CPU usage 88% - batch email job running (scheduled, not an incident)",
"timestamp": "2026-03-30T10:30:00Z", "acknowledged": False,
},
]
rc = scenario["root_cause_template"].format(service=root_svc, version=bad_ver)
fix = scenario["fix_template"].format(service=root_svc)
state = InternalState(
episode_id=str(uuid.uuid4()), task_id="medium", step=0, max_steps=20,
services=services, alerts=alerts, logs=logs,
action_history=[], total_reward=0.0, incident_resolved=False,
ground_truth_root_cause=rc, ground_truth_fix=fix,
incident_start_time=INCIDENT_TIME,
healthy_services=["notification-service", "user-service"],
service_dependencies=DEPENDENCIES,
)
state._scenario = scenario
state._bad_ver = bad_ver
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 ""
scenario = state._scenario
keywords = scenario["diagnosis_keywords"]
bad_ver = state._bad_ver
reward = 0.0
done = False
info: Dict[str, Any] = {}
result_text, error_text = self._apply_action_to_logs(state, action)
if at in (ActionType.READ_LOGS, ActionType.SEARCH_LOGS) and svc == "inventory-service":
if "logs_investigated" not in state.rewards_given:
reward += 0.10; state.rewards_given.add("logs_investigated")
if at == ActionType.READ_METRICS and svc == "inventory-service":
if "read_metrics_inv" not in state.rewards_given:
reward += 0.10; state.rewards_given.add("read_metrics_inv")
if at == ActionType.READ_METRICS and svc == "order-service":
if "read_metrics_ord" not in state.rewards_given:
reward += 0.05; state.rewards_given.add("read_metrics_ord")
if at == ActionType.READ_RUNBOOK:
if "runbook" not in state.rewards_given:
reward += 0.05; state.rewards_given.add("runbook")
# Red herring penalty
if at == ActionType.RESTART_SERVICE and svc == "notification-service":
reward -= 0.05
error_text = "notification-service was healthy — high CPU is a scheduled batch job, not an incident."
# Treating symptom before root cause
if at == ActionType.RESTART_SERVICE and svc == "order-service":
if "diagnose_correct" not in state.rewards_given:
reward -= 0.10
error_text = "order-service is a downstream victim. Fix inventory-service first."
if at == ActionType.DIAGNOSE:
rc = action.root_cause or ""
has_service = semantic_match(rc, ["inventory"])
has_cause = semantic_match(rc, keywords, threshold=1)
result_text = f"Diagnosis recorded: {rc}"
if has_service and has_cause:
if "diagnose_correct" not in state.rewards_given:
reward += 0.25; state.rewards_given.add("diagnose_correct")
elif has_service or has_cause:
if "diagnose_partial" not in state.rewards_given and "diagnose_correct" not in state.rewards_given:
reward += 0.10; state.rewards_given.add("diagnose_partial")
if at == ActionType.ROLLBACK and svc == "inventory-service":
reward += self._penalty_blind_remediation(state, action, "rollback_done")
if "rollback_done" not in state.rewards_given:
reward += 0.30; state.rewards_given.add("rollback_done")
ver = action.version or ""
if "v2.3.0" in ver or ver in ("previous", "last"):
reward += 0.10
state.services["inventory-service"]["status"] = "healthy"
state.services["inventory-service"]["error_rate"] = 0.0
state.services["inventory-service"]["latency_p99_ms"] = 85.0
state.services["inventory-service"]["current_version"] = "v2.3.0"
state.services["order-service"]["status"] = "healthy"
state.services["order-service"]["error_rate"] = 0.0
state.services["api-gateway"]["status"] = "healthy"
state.services["api-gateway"]["error_rate"] = 0.1
state.alerts = [a for a in state.alerts if a["id"] not in ("A010", "A011", "A012")]
state.incident_resolved = True
result_text = f"inventory-service rolled back. Downstream services recovering."
done = True; info["resolution"] = "incident_resolved"
if at in (ActionType.RESTART_SERVICE, ActionType.ROLLBACK) and svc in state.healthy_services:
reward -= 0.10
if at == ActionType.NOOP and state.step > 4:
reward -= 0.03
if at in (ActionType.BLOCK_IP_RANGE, ActionType.CREATE_INDEX, 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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