feat: full snapshot archiving for all videos

packages/crawler/db/snapshotSchedule.ts

@@ -2,7 +2,7 @@ import { Client } from "https://deno.land/x/postgres@v0.19.3/mod.ts";
 import { SnapshotScheduleType } from "@core/db/schema";
 import logger from "log/logger.ts";
 import { MINUTE } from "$std/datetime/constants.ts";
-import { redis } from "../../core/db/redis.ts";
+import { redis } from "@core/db/redis.ts";
 import { Redis } from "ioredis";
 
 const REDIS_KEY = "cvsa:snapshot_window_counts";
@@ -274,8 +274,14 @@ export async function getBulkSnapshotsInNextSecond(client: Client) {
 	const query = `
         SELECT *
         FROM snapshot_schedule
-		WHERE started_at <= NOW() + INTERVAL '15 seconds' AND status = 'pending' AND type = 'normal'
+        WHERE (started_at <= NOW() + INTERVAL '15 seconds')
-		ORDER BY started_at
+          AND status = 'pending'
+          AND (type = 'normal' OR type = 'archive')
+        ORDER BY CASE
+                     WHEN type = 'normal' THEN 1
+                     WHEN type = 'archive' THEN 2
+                     END,
+                 started_at
         LIMIT 1000;
 	`;
 	const res = await client.queryObject<SnapshotScheduleType>(query, []);
@@ -306,3 +312,15 @@ export async function getVideosWithoutActiveSnapshotSchedule(client: Client) {
 	const res = await client.queryObject<{ aid: number }>(query, []);
 	return res.rows.map((r) => Number(r.aid));
 }
+
+export async function getAllVideosWithoutActiveSnapshotSchedule(client: Client) {
+	const query: string = `
+		SELECT s.aid
+		FROM bilibili_metadata s
+		LEFT JOIN snapshot_schedule ss ON s.aid = ss.aid AND (ss.status = 'pending' OR ss.status = 'processing')
+		WHERE ss.aid IS NULL
+	`;
+	const res = await client.queryObject<{ aid: number }>(query, []);
+	return res.rows.map((r) => Number(r.aid));
+}
+

packages/crawler/mq/exec/snapshotTick.ts

@@ -6,7 +6,7 @@ import {
 	bulkScheduleSnapshot,
 	bulkSetSnapshotStatus,
 	findClosestSnapshot,
-	findSnapshotBefore,
+	findSnapshotBefore, getAllVideosWithoutActiveSnapshotSchedule,
 	getBulkSnapshotsInNextSecond,
 	getLatestSnapshot,
 	getSnapshotsInNextSecond,
@@ -28,6 +28,7 @@ import { lockManager } from "mq/lockManager.ts";
 import { getSongsPublihsedAt } from "db/songs.ts";
 import { bulkGetVideoStats } from "net/bulkGetVideoStats.ts";
 import { getAdjustedShortTermETA } from "../scheduling.ts";
+import {SnapshotScheduleType} from "@core/db/schema";
 
 const priorityMap: { [key: string]: number } = {
 	"milestone": 1,
@@ -52,13 +53,8 @@ export const bulkSnapshotTickWorker = async (_job: Job) => {
 			const filteredAids = await bulkGetVideosWithoutProcessingSchedules(client, aids);
 			if (filteredAids.length === 0) continue;
 			await bulkSetSnapshotStatus(client, filteredAids, "processing");
-			const dataMap: { [key: number]: number } = {};
-			for (const schedule of group) {
-				const id = Number(schedule.id);
-				dataMap[id] = Number(schedule.aid);
-			}
 			await SnapshotQueue.add("bulkSnapshotVideo", {
-				map: dataMap,
+				schedules: group,
 			}, { priority: 3 });
 		}
 		return `OK`
@@ -146,6 +142,38 @@ const getRegularSnapshotInterval = async (client: Client, aid: number) => {
 	return 6;
 };
 
+export const archiveSnapshotsWorker = async (_job: Job) => {
+	const client = await db.connect();
+	const startedAt = Date.now();
+	if (await lockManager.isLocked("dispatchArchiveSnapshots")) {
+		logger.log("dispatchArchiveSnapshots is already running", "mq");
+		client.release();
+		return;
+	}
+	await lockManager.acquireLock("dispatchArchiveSnapshots", 30 * 60);
+	try {
+		const aids = await getAllVideosWithoutActiveSnapshotSchedule(client);
+		for (const rawAid of aids) {
+			const aid = Number(rawAid);
+			const latestSnapshot = await getLatestVideoSnapshot(client, aid);
+			const now = Date.now();
+			const lastSnapshotedAt = latestSnapshot?.time ?? now;
+			const interval = 168;
+			logger.log(`Scheduled regular snapshot for aid ${aid} in ${interval} hours.`, "mq");
+			const targetTime = lastSnapshotedAt + interval * HOUR;
+			await scheduleSnapshot(client, aid, "archive", targetTime);
+			if (now - startedAt > 250 * MINUTE) {
+				return;
+			}
+		}
+	} catch (e) {
+		logger.error(e as Error, "mq", "fn:archiveSnapshotsWorker");
+	} finally {
+		await lockManager.releaseLock("dispatchArchiveSnapshots");
+		client.release();
+	}
+};
+
 export const regularSnapshotsWorker = async (_job: Job) => {
 	const client = await db.connect();
 	const startedAt = Date.now();
@@ -179,13 +207,14 @@ export const regularSnapshotsWorker = async (_job: Job) => {
 };
 
 export const takeBulkSnapshotForVideosWorker = async (job: Job) => {
-	const dataMap: { [key: number]: number } = job.data.map;
+	const schedules: SnapshotScheduleType[] = job.data.schedules;
-	const ids = Object.keys(dataMap).map((id) => Number(id));
+	const ids = schedules.map((schedule) => Number(schedule.id));
 	const aidsToFetch: number[] = [];
 	const client = await db.connect();
 	try {
-		for (const id of ids) {
+		for (const schedule of schedules) {
-			const aid = Number(dataMap[id]);
+			const aid = Number(schedule.aid);
+			const id = Number(schedule.id);
 			const exists = await snapshotScheduleExists(client, id);
 			if (!exists) {
 				continue;
@@ -220,7 +249,11 @@ export const takeBulkSnapshotForVideosWorker = async (job: Job) => {
 			logger.log(`Taken snapshot for video ${aid} in bulk.`, "net", "fn:takeBulkSnapshotForVideosWorker");
 		}
 		await bulkSetSnapshotStatus(client, ids, "completed");
-		for (const aid of aidsToFetch) {
+
+		for (const schedule of schedules) {
+			const aid = Number(schedule.aid);
+			const type = schedule.type;
+			if (type == 'archive') continue;
 			const interval = await getRegularSnapshotInterval(client, aid);
 			logger.log(`Scheduled regular snapshot for aid ${aid} in ${interval} hours.`, "mq");
 			await scheduleSnapshot(client, aid, "normal", Date.now() + interval * HOUR);

packages/crawler/mq/init.ts

@@ -1,4 +1,4 @@
-import { MINUTE, SECOND } from "$std/datetime/constants.ts";
+import { HOUR, MINUTE, SECOND } from "$std/datetime/constants.ts";
 import { ClassifyVideoQueue, LatestVideosQueue, SnapshotQueue } from "mq/index.ts";
 import logger from "log/logger.ts";
 import { initSnapshotWindowCounts } from "db/snapshotSchedule.ts";
@@ -55,6 +55,11 @@ export async function initMQ() {
 			immediately: true,
 		});
 
+		await SnapshotQueue.upsertJobScheduler("dispatchArchiveSnapshots", {
+			every: 6 * HOUR,
+			immediately: true,
+		});
+
 		await SnapshotQueue.upsertJobScheduler("scheduleCleanup", {
 			every: 30 * MINUTE,
 			immediately: true,

packages/crawler/src/worker.ts

@@ -6,6 +6,7 @@ import { lockManager } from "mq/lockManager.ts";
 import { WorkerError } from "mq/schema.ts";
 import { getVideoInfoWorker } from "mq/exec/getLatestVideos.ts";
 import {
+	archiveSnapshotsWorker,
 	bulkSnapshotTickWorker,
 	collectMilestoneSnapshotsWorker,
 	regularSnapshotsWorker,
@@ -82,6 +83,8 @@ const snapshotWorker = new Worker(
 				return await takeBulkSnapshotForVideosWorker(job);
 			case "bulkSnapshotTick":
 				return await bulkSnapshotTickWorker(job);
+			case "dispatchArchiveSnapshots":
+				return await archiveSnapshotsWorker(job);
 			default:
 				break;
 		}