feat: 初始化 bls-onoffline-backend 项目基础结构
添加 Kafka 消费者、数据库写入、Redis 集成等核心模块，实现设备上下线事件处理 - 创建项目基础目录结构与配置文件 - 实现 Kafka 消费逻辑与手动提交偏移量 - 添加 PostgreSQL 数据库连接与分区表管理 - 集成 Redis 用于错误队列和项目心跳 - 包含数据处理逻辑，区分重启与非重启数据 - 提供数据库初始化脚本与分区创建工具 - 添加单元测试与代码校验脚本
This commit is contained in:
857
bls-onoffline-backend/dist/index.js
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857
bls-onoffline-backend/dist/index.js
vendored
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@@ -0,0 +1,857 @@
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import cron from "node-cron";
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import dotenv from "dotenv";
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import pg from "pg";
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import fs from "fs";
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import path from "path";
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import { fileURLToPath } from "url";
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import kafka from "kafka-node";
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import { randomUUID } from "crypto";
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import { z } from "zod";
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import { createClient } from "redis";
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dotenv.config();
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const parseNumber = (value, defaultValue) => {
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const parsed = Number(value);
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return Number.isFinite(parsed) ? parsed : defaultValue;
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};
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const parseList = (value) => (value || "").split(",").map((item) => item.trim()).filter(Boolean);
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const config = {
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env: process.env.NODE_ENV || "development",
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port: parseNumber(process.env.PORT, 3001),
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kafka: {
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brokers: parseList(process.env.KAFKA_BROKERS),
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topic: process.env.KAFKA_TOPIC || process.env.KAFKA_TOPICS || "blwlog4Nodejs-rcu-onoffline-topic",
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groupId: process.env.KAFKA_GROUP_ID || "bls-onoffline-group",
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clientId: process.env.KAFKA_CLIENT_ID || "bls-onoffline-client",
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consumerInstances: parseNumber(process.env.KAFKA_CONSUMER_INSTANCES, 1),
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maxInFlight: parseNumber(process.env.KAFKA_MAX_IN_FLIGHT, 50),
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fetchMaxBytes: parseNumber(process.env.KAFKA_FETCH_MAX_BYTES, 10 * 1024 * 1024),
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fetchMinBytes: parseNumber(process.env.KAFKA_FETCH_MIN_BYTES, 1),
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fetchMaxWaitMs: parseNumber(process.env.KAFKA_FETCH_MAX_WAIT_MS, 100),
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autoCommitIntervalMs: parseNumber(process.env.KAFKA_AUTO_COMMIT_INTERVAL_MS, 5e3),
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logMessages: process.env.KAFKA_LOG_MESSAGES === "true",
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sasl: process.env.KAFKA_SASL_USERNAME && process.env.KAFKA_SASL_PASSWORD ? {
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mechanism: process.env.KAFKA_SASL_MECHANISM || "plain",
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username: process.env.KAFKA_SASL_USERNAME,
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password: process.env.KAFKA_SASL_PASSWORD
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} : void 0
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},
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db: {
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host: process.env.DB_HOST || process.env.POSTGRES_HOST || "localhost",
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port: parseNumber(process.env.DB_PORT || process.env.POSTGRES_PORT, 5432),
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user: process.env.DB_USER || process.env.POSTGRES_USER || "postgres",
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password: process.env.DB_PASSWORD || process.env.POSTGRES_PASSWORD || "",
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database: process.env.DB_DATABASE || process.env.POSTGRES_DATABASE || "log_platform",
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max: parseNumber(process.env.DB_MAX_CONNECTIONS || process.env.POSTGRES_MAX_CONNECTIONS, 10),
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ssl: process.env.DB_SSL === "true" ? { rejectUnauthorized: false } : void 0,
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schema: process.env.DB_SCHEMA || "onoffline",
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table: process.env.DB_TABLE || "onoffline_record"
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},
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redis: {
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host: process.env.REDIS_HOST || "localhost",
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port: parseNumber(process.env.REDIS_PORT, 6379),
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password: process.env.REDIS_PASSWORD || void 0,
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db: parseNumber(process.env.REDIS_DB, 0),
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projectName: process.env.REDIS_PROJECT_NAME || "bls-onoffline",
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apiBaseUrl: process.env.REDIS_API_BASE_URL || `http://localhost:${parseNumber(process.env.PORT, 3001)}`
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}
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};
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const format = (level, message, context) => {
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const payload = {
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level,
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message,
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timestamp: Date.now(),
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...context ? { context } : {}
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};
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return JSON.stringify(payload);
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};
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const logger$1 = {
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info(message, context) {
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process.stdout.write(`${format("info", message, context)}
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`);
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},
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error(message, context) {
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process.stderr.write(`${format("error", message, context)}
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`);
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}
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};
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const { Pool } = pg;
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const columns = [
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"guid",
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"ts_ms",
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"write_ts_ms",
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"hotel_id",
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"mac",
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"device_id",
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"room_id",
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"ip",
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"current_status",
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"launcher_version",
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"reboot_reason"
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];
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class DatabaseManager {
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constructor(dbConfig) {
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this.pool = new Pool({
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host: dbConfig.host,
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port: dbConfig.port,
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user: dbConfig.user,
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password: dbConfig.password,
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database: dbConfig.database,
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max: dbConfig.max,
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ssl: dbConfig.ssl
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});
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}
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async insertRows({ schema, table, rows }) {
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if (!rows || rows.length === 0) {
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return;
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}
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const values = [];
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const placeholders = rows.map((row, rowIndex) => {
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const offset = rowIndex * columns.length;
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columns.forEach((column) => {
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values.push(row[column] ?? null);
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});
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const params = columns.map((_, columnIndex) => `$${offset + columnIndex + 1}`);
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return `(${params.join(", ")})`;
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});
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const statement = `
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INSERT INTO ${schema}.${table} (${columns.join(", ")})
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VALUES ${placeholders.join(", ")}
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ON CONFLICT DO NOTHING
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`;
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try {
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await this.pool.query(statement, values);
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} catch (error) {
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logger$1.error("Database insert failed", {
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error: error?.message,
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schema,
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table,
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rowsLength: rows.length
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});
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throw error;
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}
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}
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async checkConnection() {
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let client;
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try {
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const connectPromise = this.pool.connect();
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const timeoutPromise = new Promise((_, reject) => {
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setTimeout(() => reject(new Error("Connection timeout")), 5e3);
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});
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try {
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client = await Promise.race([connectPromise, timeoutPromise]);
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} catch (raceError) {
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connectPromise.then((c) => c.release()).catch(() => {
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});
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throw raceError;
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}
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await client.query("SELECT 1");
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return true;
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} catch (err) {
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logger$1.error("Database check connection failed", { error: err.message });
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return false;
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} finally {
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if (client) {
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client.release();
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}
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}
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}
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async close() {
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await this.pool.end();
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}
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}
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const dbManager = new DatabaseManager(config.db);
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class PartitionManager {
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/**
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* Calculate the start and end timestamps (milliseconds) for a given date.
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* @param {Date} date - The date to calculate for.
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* @returns {Object} { startMs, endMs, partitionSuffix }
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*/
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getPartitionInfo(date) {
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const yyyy = date.getFullYear();
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const mm = String(date.getMonth() + 1).padStart(2, "0");
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const dd = String(date.getDate()).padStart(2, "0");
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const partitionSuffix = `${yyyy}${mm}${dd}`;
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const start = new Date(date);
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start.setHours(0, 0, 0, 0);
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const startMs = start.getTime();
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const end = new Date(date);
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end.setDate(end.getDate() + 1);
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end.setHours(0, 0, 0, 0);
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const endMs = end.getTime();
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return { startMs, endMs, partitionSuffix };
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}
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/**
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* Ensure partitions exist for the past M days and next N days.
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* @param {number} daysAhead - Number of days to pre-create.
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* @param {number} daysBack - Number of days to look back.
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*/
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async ensurePartitions(daysAhead = 30, daysBack = 15) {
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const client = await dbManager.pool.connect();
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try {
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logger$1.info(`Starting partition check for the past ${daysBack} days and next ${daysAhead} days...`);
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console.log(`Starting partition check for the past ${daysBack} days and next ${daysAhead} days...`);
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const now = /* @__PURE__ */ new Date();
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for (let i = -daysBack; i < daysAhead; i++) {
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const targetDate = new Date(now);
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targetDate.setDate(now.getDate() + i);
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const { startMs, endMs, partitionSuffix } = this.getPartitionInfo(targetDate);
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const schema = config.db.schema;
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const table = config.db.table;
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const partitionName = `${schema}.${table}_${partitionSuffix}`;
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const checkSql = `
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SELECT to_regclass($1) as exists;
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`;
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const checkRes = await client.query(checkSql, [partitionName]);
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if (!checkRes.rows[0].exists) {
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logger$1.info(`Creating partition ${partitionName} for range [${startMs}, ${endMs})`);
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console.log(`Creating partition ${partitionName} for range [${startMs}, ${endMs})`);
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const createSql = `
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CREATE TABLE IF NOT EXISTS ${partitionName}
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PARTITION OF ${schema}.${table}
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FOR VALUES FROM (${startMs}) TO (${endMs});
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`;
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await client.query(createSql);
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}
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}
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logger$1.info("Partition check completed.");
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} catch (err) {
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logger$1.error("Error ensuring partitions:", err);
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throw err;
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} finally {
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client.release();
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}
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}
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}
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const partitionManager = new PartitionManager();
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const __filename$1 = fileURLToPath(import.meta.url);
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const __dirname$1 = path.dirname(__filename$1);
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class DatabaseInitializer {
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async initialize() {
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logger$1.info("Starting database initialization check...");
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await this.ensureDatabaseExists();
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await this.ensureSchemaAndTable();
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await partitionManager.ensurePartitions(30);
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console.log("Database initialization completed successfully.");
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logger$1.info("Database initialization completed successfully.");
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}
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async ensureDatabaseExists() {
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const { host, port, user, password, database, ssl } = config.db;
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console.log(`Checking if database '${database}' exists at ${host}:${port}...`);
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const client = new pg.Client({
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host,
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port,
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user,
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password,
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database: "postgres",
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ssl: ssl ? { rejectUnauthorized: false } : false
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});
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try {
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await client.connect();
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const checkRes = await client.query(
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`SELECT 1 FROM pg_database WHERE datname = $1`,
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[database]
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);
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if (checkRes.rowCount === 0) {
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logger$1.info(`Database '${database}' does not exist. Creating...`);
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await client.query(`CREATE DATABASE "${database}"`);
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console.log(`Database '${database}' created.`);
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logger$1.info(`Database '${database}' created.`);
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} else {
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console.log(`Database '${database}' already exists.`);
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logger$1.info(`Database '${database}' already exists.`);
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}
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} catch (err) {
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logger$1.error("Error ensuring database exists:", err);
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throw err;
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} finally {
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await client.end();
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}
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}
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async ensureSchemaAndTable() {
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const client = await dbManager.pool.connect();
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try {
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const sqlPathCandidates = [
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path.resolve(process.cwd(), "scripts/init_db.sql"),
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path.resolve(__dirname$1, "../scripts/init_db.sql"),
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path.resolve(__dirname$1, "../../scripts/init_db.sql")
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];
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const sqlPath = sqlPathCandidates.find((candidate) => fs.existsSync(candidate));
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if (!sqlPath) {
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throw new Error(`init_db.sql not found. Candidates: ${sqlPathCandidates.join(" | ")}`);
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}
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const sql = fs.readFileSync(sqlPath, "utf8");
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console.log(`Executing init_db.sql from ${sqlPath}...`);
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logger$1.info("Executing init_db.sql...");
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await client.query(sql);
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console.log("Schema and parent table initialized.");
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logger$1.info("Schema and parent table initialized.");
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} catch (err) {
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logger$1.error("Error initializing schema and table:", err);
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throw err;
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} finally {
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client.release();
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}
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}
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}
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const dbInitializer = new DatabaseInitializer();
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class OffsetTracker {
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constructor() {
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this.partitions = /* @__PURE__ */ new Map();
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}
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// Called when a message is received (before processing)
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add(topic, partition, offset) {
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const key = `${topic}-${partition}`;
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if (!this.partitions.has(key)) {
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this.partitions.set(key, []);
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}
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this.partitions.get(key).push({ offset, done: false });
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}
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// Called when a message is successfully processed
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// Returns the next offset to commit (if any advancement is possible), or null
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markDone(topic, partition, offset) {
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const key = `${topic}-${partition}`;
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const list = this.partitions.get(key);
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if (!list) return null;
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const item = list.find((i) => i.offset === offset);
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if (item) {
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item.done = true;
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}
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let lastDoneOffset = null;
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let itemsRemoved = false;
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while (list.length > 0 && list[0].done) {
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lastDoneOffset = list[0].offset;
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list.shift();
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itemsRemoved = true;
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}
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if (itemsRemoved && lastDoneOffset !== null) {
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return lastDoneOffset + 1;
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}
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return null;
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}
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}
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const { ConsumerGroup } = kafka;
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const createOneConsumer = ({ kafkaConfig, onMessage, onError, instanceIndex }) => {
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const kafkaHost = kafkaConfig.brokers.join(",");
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const clientId = instanceIndex === 0 ? kafkaConfig.clientId : `${kafkaConfig.clientId}-${instanceIndex}`;
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const id = `${clientId}-${process.pid}-${Date.now()}`;
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const maxInFlight = Number.isFinite(kafkaConfig.maxInFlight) ? kafkaConfig.maxInFlight : 50;
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let inFlight = 0;
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const tracker = new OffsetTracker();
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const consumer = new ConsumerGroup(
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{
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kafkaHost,
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groupId: kafkaConfig.groupId,
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clientId,
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id,
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fromOffset: "earliest",
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protocol: ["roundrobin"],
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outOfRangeOffset: "latest",
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autoCommit: false,
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autoCommitIntervalMs: kafkaConfig.autoCommitIntervalMs,
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fetchMaxBytes: kafkaConfig.fetchMaxBytes,
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fetchMinBytes: kafkaConfig.fetchMinBytes,
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fetchMaxWaitMs: kafkaConfig.fetchMaxWaitMs,
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sasl: kafkaConfig.sasl
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},
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kafkaConfig.topic
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);
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const tryResume = () => {
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if (inFlight < maxInFlight && consumer.paused) {
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consumer.resume();
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}
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};
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consumer.on("message", (message) => {
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inFlight += 1;
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tracker.add(message.topic, message.partition, message.offset);
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if (inFlight >= maxInFlight) {
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consumer.pause();
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}
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Promise.resolve(onMessage(message)).then(() => {
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const commitOffset = tracker.markDone(message.topic, message.partition, message.offset);
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if (commitOffset !== null) {
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consumer.sendOffsetCommitRequest([{
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topic: message.topic,
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partition: message.partition,
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offset: commitOffset,
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metadata: "m"
|
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}], (err) => {
|
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if (err) {
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logger$1.error("Kafka commit failed", { error: err?.message, topic: message.topic, partition: message.partition, offset: commitOffset });
|
||||
}
|
||||
});
|
||||
}
|
||||
}).catch((error) => {
|
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logger$1.error("Kafka message handling failed", { error: error?.message });
|
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if (onError) {
|
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onError(error, message);
|
||||
}
|
||||
}).finally(() => {
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inFlight -= 1;
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tryResume();
|
||||
});
|
||||
});
|
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consumer.on("error", (error) => {
|
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logger$1.error("Kafka consumer error", { error: error?.message });
|
||||
if (onError) {
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onError(error);
|
||||
}
|
||||
});
|
||||
consumer.on("connect", () => {
|
||||
logger$1.info(`Kafka Consumer connected`, {
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groupId: kafkaConfig.groupId,
|
||||
clientId
|
||||
});
|
||||
});
|
||||
consumer.on("rebalancing", () => {
|
||||
logger$1.info(`Kafka Consumer rebalancing`, {
|
||||
groupId: kafkaConfig.groupId,
|
||||
clientId
|
||||
});
|
||||
});
|
||||
consumer.on("rebalanced", () => {
|
||||
logger$1.info("Kafka Consumer rebalanced", { clientId, groupId: kafkaConfig.groupId });
|
||||
});
|
||||
consumer.on("error", (err) => {
|
||||
logger$1.error("Kafka Consumer Error", { error: err.message });
|
||||
});
|
||||
consumer.on("offsetOutOfRange", (err) => {
|
||||
logger$1.warn("Offset out of range", { error: err.message, topic: err.topic, partition: err.partition });
|
||||
});
|
||||
consumer.on("offsetOutOfRange", (error) => {
|
||||
logger$1.warn(`Kafka Consumer offset out of range`, {
|
||||
error: error?.message,
|
||||
groupId: kafkaConfig.groupId,
|
||||
clientId
|
||||
});
|
||||
});
|
||||
consumer.on("close", () => {
|
||||
logger$1.warn(`Kafka Consumer closed`, {
|
||||
groupId: kafkaConfig.groupId,
|
||||
clientId
|
||||
});
|
||||
});
|
||||
return consumer;
|
||||
};
|
||||
const createKafkaConsumers = ({ kafkaConfig, onMessage, onError }) => {
|
||||
const instances = Number.isFinite(kafkaConfig.consumerInstances) ? kafkaConfig.consumerInstances : 1;
|
||||
const count = Math.max(1, instances);
|
||||
return Array.from(
|
||||
{ length: count },
|
||||
(_, idx) => createOneConsumer({ kafkaConfig, onMessage, onError, instanceIndex: idx })
|
||||
);
|
||||
};
|
||||
const createGuid = () => randomUUID().replace(/-/g, "");
|
||||
const toNumber = (value) => {
|
||||
if (value === void 0 || value === null || value === "") {
|
||||
return value;
|
||||
}
|
||||
if (typeof value === "number") {
|
||||
return value;
|
||||
}
|
||||
const parsed = Number(value);
|
||||
return Number.isFinite(parsed) ? parsed : value;
|
||||
};
|
||||
const toStringAllowEmpty = (value) => {
|
||||
if (value === void 0 || value === null) {
|
||||
return value;
|
||||
}
|
||||
return String(value);
|
||||
};
|
||||
const kafkaPayloadSchema = z.object({
|
||||
HotelCode: z.preprocess(toNumber, z.number()),
|
||||
MAC: z.preprocess(toStringAllowEmpty, z.string().nullable()).optional().nullable(),
|
||||
HostNumber: z.preprocess(toStringAllowEmpty, z.string().nullable()).optional().nullable(),
|
||||
RoomNumber: z.preprocess(toStringAllowEmpty, z.string().nullable()).optional().nullable(),
|
||||
EndPoint: z.preprocess(toStringAllowEmpty, z.string().nullable()).optional().nullable(),
|
||||
CurrentStatus: z.preprocess(toStringAllowEmpty, z.string().nullable()).optional().nullable(),
|
||||
CurrentTime: z.preprocess(toStringAllowEmpty, z.string().nullable()).optional().nullable(),
|
||||
UnixTime: z.preprocess(toNumber, z.number().nullable()).optional().nullable(),
|
||||
LauncherVersion: z.preprocess(toStringAllowEmpty, z.string().nullable()).optional().nullable(),
|
||||
RebootReason: z.preprocess(toStringAllowEmpty, z.string().nullable()).optional().nullable()
|
||||
});
|
||||
const normalizeText = (value, maxLength) => {
|
||||
if (value === void 0 || value === null) {
|
||||
return null;
|
||||
}
|
||||
const str = String(value);
|
||||
if (maxLength && str.length > maxLength) {
|
||||
return str.substring(0, maxLength);
|
||||
}
|
||||
return str;
|
||||
};
|
||||
const buildRowsFromPayload = (rawPayload) => {
|
||||
const payload = kafkaPayloadSchema.parse(rawPayload);
|
||||
const rebootReason = normalizeText(payload.RebootReason, 255);
|
||||
const currentStatusRaw = normalizeText(payload.CurrentStatus, 255);
|
||||
const hasRebootReason = rebootReason !== null && rebootReason !== "";
|
||||
const currentStatus = hasRebootReason ? "on" : currentStatusRaw;
|
||||
let tsMs = payload.UnixTime;
|
||||
if (typeof tsMs === "number" && tsMs < 1e11) {
|
||||
tsMs = tsMs * 1e3;
|
||||
}
|
||||
if (!tsMs && payload.CurrentTime) {
|
||||
const parsed = Date.parse(payload.CurrentTime);
|
||||
if (!isNaN(parsed)) {
|
||||
tsMs = parsed;
|
||||
}
|
||||
}
|
||||
if (!tsMs) {
|
||||
tsMs = Date.now();
|
||||
}
|
||||
const mac = normalizeText(payload.MAC) || "";
|
||||
const deviceId = normalizeText(payload.HostNumber) || "";
|
||||
const roomId = normalizeText(payload.RoomNumber) || "";
|
||||
const row = {
|
||||
guid: createGuid(),
|
||||
ts_ms: tsMs,
|
||||
write_ts_ms: Date.now(),
|
||||
hotel_id: payload.HotelCode,
|
||||
mac,
|
||||
device_id: deviceId,
|
||||
room_id: roomId,
|
||||
ip: normalizeText(payload.EndPoint),
|
||||
current_status: currentStatus,
|
||||
launcher_version: normalizeText(payload.LauncherVersion, 255),
|
||||
reboot_reason: rebootReason
|
||||
};
|
||||
return [row];
|
||||
};
|
||||
const processKafkaMessage = async ({ message, dbManager: dbManager2, config: config2 }) => {
|
||||
let rows;
|
||||
try {
|
||||
const rawValue = message.value.toString();
|
||||
let payload;
|
||||
try {
|
||||
payload = JSON.parse(rawValue);
|
||||
} catch (e) {
|
||||
logger.error("JSON Parse Error", { error: e.message, rawValue });
|
||||
const error = new Error(`JSON Parse Error: ${e.message}`);
|
||||
error.type = "PARSE_ERROR";
|
||||
throw error;
|
||||
}
|
||||
const validationResult = kafkaPayloadSchema.safeParse(payload);
|
||||
if (!validationResult.success) {
|
||||
logger.error("Schema Validation Failed", {
|
||||
errors: validationResult.error.errors,
|
||||
payload
|
||||
});
|
||||
const error = new Error(`Schema Validation Failed: ${JSON.stringify(validationResult.error.errors)}`);
|
||||
error.type = "VALIDATION_ERROR";
|
||||
throw error;
|
||||
}
|
||||
rows = buildRowsFromPayload(payload);
|
||||
} catch (error) {
|
||||
throw error;
|
||||
}
|
||||
try {
|
||||
await dbManager2.insertRows({ schema: config2.db.schema, table: config2.db.table, rows });
|
||||
} catch (error) {
|
||||
error.type = "DB_ERROR";
|
||||
const sample = rows?.[0];
|
||||
error.dbContext = {
|
||||
rowsLength: rows?.length || 0,
|
||||
sampleRow: sample ? {
|
||||
guid: sample.guid,
|
||||
ts_ms: sample.ts_ms,
|
||||
mac: sample.mac,
|
||||
device_id: sample.device_id,
|
||||
room_id: sample.room_id,
|
||||
current_status: sample.current_status
|
||||
} : null
|
||||
};
|
||||
throw error;
|
||||
}
|
||||
return rows.length;
|
||||
};
|
||||
const createRedisClient = async (config2) => {
|
||||
const client = createClient({
|
||||
socket: {
|
||||
host: config2.host,
|
||||
port: config2.port
|
||||
},
|
||||
password: config2.password,
|
||||
database: config2.db
|
||||
});
|
||||
await client.connect();
|
||||
return client;
|
||||
};
|
||||
class RedisIntegration {
|
||||
constructor(client, projectName, apiBaseUrl) {
|
||||
this.client = client;
|
||||
this.projectName = projectName;
|
||||
this.apiBaseUrl = apiBaseUrl;
|
||||
this.heartbeatKey = "项目心跳";
|
||||
this.logKey = `${projectName}_项目控制台`;
|
||||
}
|
||||
async info(message, context) {
|
||||
const payload = {
|
||||
timestamp: (/* @__PURE__ */ new Date()).toISOString(),
|
||||
level: "info",
|
||||
message,
|
||||
metadata: context || void 0
|
||||
};
|
||||
await this.client.rPush(this.logKey, JSON.stringify(payload));
|
||||
}
|
||||
async error(message, context) {
|
||||
const payload = {
|
||||
timestamp: (/* @__PURE__ */ new Date()).toISOString(),
|
||||
level: "error",
|
||||
message,
|
||||
metadata: context || void 0
|
||||
};
|
||||
await this.client.rPush(this.logKey, JSON.stringify(payload));
|
||||
}
|
||||
startHeartbeat() {
|
||||
setInterval(() => {
|
||||
const payload = {
|
||||
projectName: this.projectName,
|
||||
apiBaseUrl: this.apiBaseUrl,
|
||||
lastActiveAt: Date.now()
|
||||
};
|
||||
this.client.rPush(this.heartbeatKey, JSON.stringify(payload));
|
||||
}, 3e3);
|
||||
}
|
||||
}
|
||||
const buildErrorQueueKey = (projectName) => `${projectName}_error_queue`;
|
||||
const enqueueError = async (client, queueKey, payload) => {
|
||||
try {
|
||||
await client.rPush(queueKey, JSON.stringify(payload));
|
||||
} catch (error) {
|
||||
logger$1.error("Redis enqueue error failed", { error: error?.message });
|
||||
throw error;
|
||||
}
|
||||
};
|
||||
const startErrorRetryWorker = async ({
|
||||
client,
|
||||
queueKey,
|
||||
handler,
|
||||
redisIntegration,
|
||||
maxAttempts = 5
|
||||
}) => {
|
||||
while (true) {
|
||||
const result = await client.blPop(queueKey, 0);
|
||||
const raw = result?.element;
|
||||
if (!raw) {
|
||||
continue;
|
||||
}
|
||||
let item;
|
||||
try {
|
||||
item = JSON.parse(raw);
|
||||
} catch (error) {
|
||||
logger$1.error("Invalid error payload", { error: error?.message });
|
||||
await redisIntegration.error("Invalid error payload", { module: "redis", stack: error?.message });
|
||||
continue;
|
||||
}
|
||||
const attempts = item.attempts || 0;
|
||||
try {
|
||||
await handler(item);
|
||||
} catch (error) {
|
||||
logger$1.error("Retry handler failed", { error: error?.message, stack: error?.stack });
|
||||
const nextPayload = {
|
||||
...item,
|
||||
attempts: attempts + 1,
|
||||
lastError: error?.message,
|
||||
lastAttemptAt: Date.now()
|
||||
};
|
||||
if (nextPayload.attempts >= maxAttempts) {
|
||||
await redisIntegration.error("Retry attempts exceeded", { module: "retry", stack: JSON.stringify(nextPayload) });
|
||||
} else {
|
||||
await enqueueError(client, queueKey, nextPayload);
|
||||
}
|
||||
}
|
||||
}
|
||||
};
|
||||
class MetricCollector {
|
||||
constructor() {
|
||||
this.reset();
|
||||
}
|
||||
reset() {
|
||||
this.metrics = {
|
||||
kafka_pulled: 0,
|
||||
parse_error: 0,
|
||||
db_inserted: 0,
|
||||
db_failed: 0
|
||||
};
|
||||
}
|
||||
increment(metric, count = 1) {
|
||||
if (this.metrics.hasOwnProperty(metric)) {
|
||||
this.metrics[metric] += count;
|
||||
}
|
||||
}
|
||||
getAndReset() {
|
||||
const current = { ...this.metrics };
|
||||
this.reset();
|
||||
return current;
|
||||
}
|
||||
}
|
||||
const bootstrap = async () => {
|
||||
logger$1.info("Starting application with config", {
|
||||
env: process.env.NODE_ENV,
|
||||
db: {
|
||||
host: config.db.host,
|
||||
port: config.db.port,
|
||||
user: config.db.user,
|
||||
database: config.db.database,
|
||||
schema: config.db.schema
|
||||
},
|
||||
kafka: {
|
||||
brokers: config.kafka.brokers,
|
||||
topic: config.kafka.topic,
|
||||
groupId: config.kafka.groupId
|
||||
},
|
||||
redis: {
|
||||
host: config.redis.host,
|
||||
port: config.redis.port
|
||||
}
|
||||
});
|
||||
await dbInitializer.initialize();
|
||||
const metricCollector = new MetricCollector();
|
||||
cron.schedule("0 0 * * *", async () => {
|
||||
logger$1.info("Running scheduled partition maintenance...");
|
||||
try {
|
||||
await partitionManager.ensurePartitions(30);
|
||||
} catch (err) {
|
||||
logger$1.error("Scheduled partition maintenance failed", err);
|
||||
}
|
||||
});
|
||||
const redisClient = await createRedisClient(config.redis);
|
||||
const redisIntegration = new RedisIntegration(
|
||||
redisClient,
|
||||
config.redis.projectName,
|
||||
config.redis.apiBaseUrl
|
||||
);
|
||||
redisIntegration.startHeartbeat();
|
||||
cron.schedule("* * * * *", async () => {
|
||||
const metrics = metricCollector.getAndReset();
|
||||
const report = `[Minute Metrics] Pulled: ${metrics.kafka_pulled}, Parse Error: ${metrics.parse_error}, Inserted: ${metrics.db_inserted}, Failed: ${metrics.db_failed}`;
|
||||
console.log(report);
|
||||
logger$1.info(report, metrics);
|
||||
try {
|
||||
await redisIntegration.info("Minute Metrics", metrics);
|
||||
} catch (err) {
|
||||
logger$1.error("Failed to report metrics to Redis", { error: err?.message });
|
||||
}
|
||||
});
|
||||
const errorQueueKey = buildErrorQueueKey(config.redis.projectName);
|
||||
const handleError = async (error, message) => {
|
||||
logger$1.error("Kafka processing error", {
|
||||
error: error?.message,
|
||||
type: error?.type,
|
||||
stack: error?.stack
|
||||
});
|
||||
try {
|
||||
await redisIntegration.error("Kafka processing error", {
|
||||
module: "kafka",
|
||||
stack: error?.stack || error?.message
|
||||
});
|
||||
} catch (redisError) {
|
||||
logger$1.error("Redis error log failed", { error: redisError?.message });
|
||||
}
|
||||
if (message) {
|
||||
const messageValue = Buffer.isBuffer(message.value) ? message.value.toString("utf8") : message.value;
|
||||
try {
|
||||
await enqueueError(redisClient, errorQueueKey, {
|
||||
attempts: 0,
|
||||
value: messageValue,
|
||||
meta: {
|
||||
topic: message.topic,
|
||||
partition: message.partition,
|
||||
offset: message.offset,
|
||||
key: message.key
|
||||
},
|
||||
timestamp: Date.now()
|
||||
});
|
||||
} catch (enqueueError2) {
|
||||
logger$1.error("Enqueue error payload failed", { error: enqueueError2?.message });
|
||||
}
|
||||
}
|
||||
};
|
||||
const handleMessage = async (message) => {
|
||||
if (message.topic) {
|
||||
metricCollector.increment("kafka_pulled");
|
||||
}
|
||||
const messageValue = Buffer.isBuffer(message.value) ? message.value.toString("utf8") : message.value;
|
||||
Buffer.isBuffer(message.key) ? message.key.toString("utf8") : message.key;
|
||||
({
|
||||
topic: message.topic,
|
||||
partition: message.partition,
|
||||
offset: message.offset,
|
||||
valueLength: !config.kafka.logMessages && typeof messageValue === "string" ? messageValue.length : null
|
||||
});
|
||||
while (true) {
|
||||
try {
|
||||
const inserted = await processKafkaMessage({ message, dbManager, config });
|
||||
metricCollector.increment("db_inserted");
|
||||
return;
|
||||
} catch (error) {
|
||||
const isDbConnectionError = error.code && ["ECONNREFUSED", "57P03", "08006", "08001", "EADDRINUSE", "ETIMEDOUT"].includes(error.code) || error.message && (error.message.includes("ECONNREFUSED") || error.message.includes("connection") || error.message.includes("terminated") || error.message.includes("EADDRINUSE") || error.message.includes("ETIMEDOUT") || error.message.includes("The server does not support SSL connections"));
|
||||
if (isDbConnectionError) {
|
||||
logger$1.error("Database offline. Pausing consumption for 1 minute...", { error: error.message });
|
||||
await new Promise((resolve) => setTimeout(resolve, 6e4));
|
||||
while (true) {
|
||||
const isConnected = await dbManager.checkConnection();
|
||||
if (isConnected) {
|
||||
logger$1.info("Database connection restored. Resuming processing...");
|
||||
break;
|
||||
}
|
||||
logger$1.warn("Database still offline. Waiting 1 minute...");
|
||||
await new Promise((resolve) => setTimeout(resolve, 6e4));
|
||||
}
|
||||
} else {
|
||||
if (error.type === "PARSE_ERROR") {
|
||||
metricCollector.increment("parse_error");
|
||||
} else {
|
||||
metricCollector.increment("db_failed");
|
||||
}
|
||||
logger$1.error("Message processing failed (Data/Logic Error), skipping message", {
|
||||
error: error?.message,
|
||||
type: error?.type
|
||||
});
|
||||
await handleError(error, message);
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
};
|
||||
const consumers = createKafkaConsumers({
|
||||
kafkaConfig: config.kafka,
|
||||
onMessage: handleMessage,
|
||||
onError: handleError
|
||||
});
|
||||
startErrorRetryWorker({
|
||||
client: redisClient,
|
||||
queueKey: errorQueueKey,
|
||||
redisIntegration,
|
||||
handler: async (item) => {
|
||||
if (!item?.value) {
|
||||
throw new Error("Missing value in retry payload");
|
||||
}
|
||||
await handleMessage({ value: item.value });
|
||||
}
|
||||
}).catch((err) => {
|
||||
logger$1.error("Retry worker failed", { error: err?.message });
|
||||
});
|
||||
const shutdown = async (signal) => {
|
||||
logger$1.info(`Received ${signal}, shutting down...`);
|
||||
try {
|
||||
if (consumers && consumers.length > 0) {
|
||||
await Promise.all(consumers.map((c) => new Promise((resolve) => c.close(true, resolve))));
|
||||
logger$1.info("Kafka consumer closed", { count: consumers.length });
|
||||
}
|
||||
await redisClient.quit();
|
||||
logger$1.info("Redis client closed");
|
||||
await dbManager.close();
|
||||
logger$1.info("Database connection closed");
|
||||
process.exit(0);
|
||||
} catch (err) {
|
||||
logger$1.error("Error during shutdown", { error: err?.message });
|
||||
process.exit(1);
|
||||
}
|
||||
};
|
||||
process.on("SIGTERM", () => shutdown("SIGTERM"));
|
||||
process.on("SIGINT", () => shutdown("SIGINT"));
|
||||
};
|
||||
bootstrap().catch((error) => {
|
||||
logger$1.error("Service bootstrap failed", { error: error?.message });
|
||||
process.exit(1);
|
||||
});
|
||||
Reference in New Issue
Block a user