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server: rewrite skipped instances query in raw SQL

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This should hopefully improve performance somewhat.

Reviewed-on: FoundKeyGang/FoundKey#230
Changelog: Changed
This commit is contained in:
Johann150 2022-11-18 22:02:07 +01:00
parent acdb4cde54
commit 4183c429e6
Signed by untrusted user: Johann150
GPG key ID: 9EE6577A2A06F8F1
1 changed files with 9 additions and 11 deletions
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20
packages/backend/src/misc/skipped-instances.ts
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@ -1,4 +1,5 @@
import { Brackets } from 'typeorm';
import { db } from '@/db/postgre.js';
import { fetchMeta } from '@/misc/fetch-meta.js';
import { Instances } from '@/models/index.js';
import { Instance } from '@/models/entities/instance.js';
@ -25,19 +26,16 @@ export async function skippedInstances(hosts: Array<Instace['host']>): Array<Ins
const deadTime = new Date(Date.now() - deadThreshold);
return skipped.concat(
await Instances.createQueryBuilder('instance')
.where('instance.host in (:...hosts)', {
await db.query(
`SELECT host FROM instance WHERE ("isSuspended" OR "latestStatus" = 410 OR "lastCommunicatedAt" < $1::date) AND host = ANY(string_to_array($2, ','))`,
[
deadTime.toISOString(),
// don't check hosts again that we already know are suspended
// also avoids adding duplicates to the list
hosts: hosts.filter(host => !skipped.includes(host)),
})
.andWhere(new Brackets(qb => { qb
.where('instance.isSuspended')
.orWhere('instance.lastCommunicatedAt < :deadTime', { deadTime })
.orWhere('instance.latestStatus = 410');
}))
.select('host')
.getRawMany()
hosts.filter(host => !skipped.includes(host) && !host.includes(',')).join(','),
],
)
.then(res => res.map(row => row.host))
);
}