thzxx
58c8a1a3a0
- 退出前 db.close() 确保 WAL/SSTable 干净落盘，避免渲染进程销毁时 flush 中断留下半写文件导致下次启动损坏 - 自愈（删损坏库/重载）仅限页面生命周期内首次初始化；运行中失败直接抛错，不再阻塞应用关闭流程
29 lines
1.2 KiB
JavaScript
29 lines
1.2 KiB
JavaScript
import 'fake-indexeddb/auto'
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import { AriaEngine } from '/mnt/d/CodeWorkspace/MarkLite/node_modules/@metona-team/metona-sqlark/dist/metona-sqlark.esm.js'
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// 小 memtable 阈值 → 频繁 flush → 多个 SSTable + WAL
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const engine1 = new AriaEngine({ storageBackend: 'indexeddb', memtableSizeThreshold: 4096, walEnabled: true })
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await engine1.open('flushkill-test', 1)
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await engine1.createTable({ name: 't', columns: { id: { type: 'string', primaryKey: true }, v: { type: 'number' } } })
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// 写入大量数据触发多次 flush（写 WAL + 刷 SSTable）
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for (let i = 0; i < 3000; i++) {
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await engine1.insert('t', [{ id: `k${i}`, v: i }])
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}
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console.log('S1 wrote 3000 rows')
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// 不 close！直接丢弃实例（模拟应用被强制关闭/渲染进程被销毁）
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// 重新打开同库
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const engine2 = new AriaEngine({ storageBackend: 'indexeddb', memtableSizeThreshold: 4096, walEnabled: true })
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await engine2.open('flushkill-test', 1)
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const tables = await engine2.getTableNames()
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console.log('S2 tables:', JSON.stringify(tables))
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if (tables.includes('t')) {
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const rows = await engine2.find('t', { limit: 5 })
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console.log('S2 sample rows:', JSON.stringify(rows))
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console.log('REOPEN OK')
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} else {
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console.log('TABLE LOST')
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}
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await engine2.close()
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