iboard/scripts/lib/cron-alert.js
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JavaScript

// 定时任务失败报警: 向 Alert 表插入一条错误记录
// 供 server/cron.js 与 scripts/scheduler/index.js 共用
// 首页报警 tab 会展示 Alert 表, 字段按错误语义填充 (indicatorName=任务+错误摘要)
import 'dotenv/config'
import mysql from 'mysql2/promise'
function parseUrl(url) {
const u = new URL(url)
return { host: u.hostname, port: Number(u.port) || 3306, user: decodeURIComponent(u.username), password: decodeURIComponent(u.password), database: u.pathname.replace(/^\//, '') }
}
export async function insertCronAlert(taskName, message) {
if (!process.env.DATABASE_URL) {
console.error('[cron-alert] 缺少 DATABASE_URL, 跳过报警写入')
return
}
let conn = null
try {
conn = await mysql.createConnection(parseUrl(process.env.DATABASE_URL))
// 用 Asia/Shanghai 时区的当天日期, 避免 UTC 偏移导致 period 显示成昨天
const today = new Date().toLocaleDateString('en-CA', { timeZone: 'Asia/Shanghai' })
const cleanMsg = String(message || '').replace(/\s+/g, ' ').trim()
const name = ('[cron] ' + taskName + ' 失败: ' + cleanMsg).slice(0, 180)
await conn.execute(
'INSERT INTO `Alert` (`indicatorName`, `period`, `valueA`, `valueB`, `sourceA`, `sourceB`, `diff`, `diffRatio`, `createdAt`) ' +
'VALUES (?, ?, 0, 0, ?, ?, 0, 0, NOW(3))',
[name, today, 'cron', 'error'],
)
console.error('[cron-alert] 已写入报警:', name)
} catch (e) {
// 报警写入本身失败 (如 DB 不可达) 不能反噬主流程/再次抛错, 只记录
console.error('[cron-alert] 写入报警失败:', e.message)
} finally {
if (conn) await conn.end().catch(() => {})
}
}