触点数字孪生,揭秘它的独特魅力
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2025-02-20
http { map $http_x_device_id $backend { default prod_backend; "~*^gray" gray_backend; } split_clients "${remote_addr}${http_user_agent}" $variant { 10% "v2"; * "v1"; } server { location / { if ($http_x_gray_tag = "true") { proxy_pass http://$backend; } proxy_pass http://$variant; } } }
public class DeviceInfoCollector : MonoBehaviour { void Start() { var deviceFingerprint = SystemInfo.deviceUniqueIdentifier + SystemInfo.graphicsDeviceName + SystemInfo.processorType; WX.SetStorageSync("device_fp", MD5Hash(deviceFingerprint)); } string MD5Hash(string input) { using (var md5 = System.Security.Cryptography.MD5.Create()) { byte[] inputBytes = Encoding.ASCII.GetBytes(input); byte[] hashBytes = md5.ComputeHash(inputBytes); return BitConverter.ToString(hashBytes).Replace("-",""); } } }
public class GrayRouteFilter implements GlobalFilter { @Override public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) { String deviceId = exchange.getRequest().getHeaders().getFirst("X-Device-ID"); int hash = Math.abs(deviceId.hashCode() % 100); if (hash < grayRate) { exchange.getAttributes().put(GATEWAY_REQUEST_URL_ATTR, grayServiceInstance.getUri()); } return chain.filter(exchange); } }
# 数据同步中间件 class DataSyncMiddleware: def __init__(self, old_db, new_db): self.old_db = old_db self.new_db = new_db def write(self, data): # 异步双写 Thread(target=self.old_db.insert, args=(data,)).start() Thread(target=self.new_db.insert, args=(data,)).start() def migrate(self): # 全量数据迁移 for record in self.old_db.scan(): self.new_db.insert(record) # MQ增量同步 consumer = KafkaConsumer('db_changes') for msg in consumer: self.new_db.insert(msg.value)
# metrics_config.yml metrics: - name: game_start_total type: counter labels: [version, platform] help: "Total game starts count" - name: api_latency_seconds type: histogram buckets: [0.1, 0.5, 1, 2, 5] labels: [endpoint] help: "API response latency distribution"
const client = require('prom-client'); const httpRequestDuration = new client.Histogram({ name: 'http_request_duration_seconds', help: 'HTTP request latency', labelNames: ['method', 'route'], buckets: [0.1, 0.3, 0.5, 1, 2, 5] }); app.use((req, res, next) => { const end = httpRequestDuration.startTimer(); res.on('finish', () => { end({ method: req.method, route: req.path }); }); next(); });
stages: - deploy - monitor - rollback deploy_gray: stage: deploy script: - curl -X POST "${GRAY_DEPLOY_URL}?ratio=10" rules: - if: '$CI_COMMIT_BRANCH == "feat/gray"' auto_rollback: stage: rollback script: - ERROR_RATE=$(query_prometheus 'error_rate{env="gray"}') - if [ $(echo "$ERROR_RATE > 15" | bc) -eq 1 ]; then curl -X POST "${ROLLBACK_URL}"; fi needs: ["deploy_gray"]
def calculate_ratio(base=5, growth=2, days=5): return [min(base * (growth ** d), 100) for d in range(days)] # 输出:[5, 10, 20, 40, 80]
public boolean isGrayUser(HttpRequest request) { String deviceId = request.getHeader("X-Device-ID"); String userId = request.getCookie("uid"); String location = request.getHeader("Geo-City"); int hash = (deviceId + userId).hashCode() & 0x7FFFFFFF; return hash % 100 < grayRatio && SUPPORTED_CITIES.contains(location) && isHighEndDevice(deviceId); }
const ETCD = require('etcd3'); const client = new ETCD({ hosts: 'etcd-cluster:2379' }); client.watch() .key('/gray_config') .create() .on('data', (res) => { updateGrayConfig(JSON.parse(res.value.toString())); });
func edgeGrayDecision(ctx context.Context) bool { deviceInfo := ctx.Value("device_info").(DeviceInfo) return deviceInfo.Battery > 0.3 && deviceInfo.Network == "wifi" && deviceInfo.Storage > 1024 }
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