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slightly reduce stalls when updating MiInstance

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Hazelnoot 2025-06-18 01:37:28 -04:00
parent 86b8a8a734
commit ce8c8e9851
2 changed files with 42 additions and 10 deletions
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29
packages/backend/migration/1750217001651-enable-instance-HOT-updates.js Normal file
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@ -0,0 +1,29 @@
/*
* SPDX-FileCopyrightText: hazelnoot and other Sharkey contributors
* SPDX-License-Identifier: AGPL-3.0-only
*/
// https://www.cybertec-postgresql.com/en/hot-updates-in-postgresql-for-better-performance/
/**
* @typedef {import('typeorm').MigrationInterface} MigrationInterface
*/
/**
* @class
* @implements {MigrationInterface}
*/
export class EnableInstanceHOTUpdates1750217001651 {
name = 'EnableInstanceHOTUpdates1750217001651';
async up(queryRunner) {
await queryRunner.query(`ALTER TABLE "instance" SET (fillfactor = 50)`);
// Vacuum can't run inside a transaction block, so query directly from the connection.
await queryRunner.connection.query(`VACUUM (FULL, VERBOSE) "instance"`);
}
async down(queryRunner) {
await queryRunner.query(`ALTER TABLE "instance" SET (fillfactor = 100)`);
}
}

23
packages/backend/src/core/FetchInstanceMetadataService.ts
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@ -132,18 +132,21 @@ export class FetchInstanceMetadataService {
} as Record<string, any>;
if (info) {
updates.softwareName = typeof info.software?.name === 'string' ? info.software.name.toLowerCase() : '?';
updates.softwareVersion = info.software?.version;
updates.openRegistrations = info.openRegistrations;
updates.maintainerName = info.metadata ? info.metadata.maintainer ? (info.metadata.maintainer.name ?? null) : null : null;
updates.maintainerEmail = info.metadata ? info.metadata.maintainer ? (info.metadata.maintainer.email ?? null) : null : null;
const softwareName = typeof info.software?.name === 'string' ? info.software.name.toLowerCase() : '?';
if (softwareName !== instance.softwareName) updates.softwareName = updates.softwareVersion = info.software?.version;
if (info.openRegistrations !== instance.openRegistrations) updates.openRegistrations = info.openRegistrations;
const maintainerName = info.metadata ? info.metadata.maintainer ? (info.metadata.maintainer.name ?? null) : null : null;
if (maintainerName !== instance.maintainerName) updates.maintainerName = maintainerName;
const maintainerEmail = info.metadata ? info.metadata.maintainer ? (info.metadata.maintainer.email ?? null) : null : null;
if (maintainerEmail !== instance.maintainerEmail) updates.maintainerEmail = maintainerEmail;
}
if (name) updates.name = name;
if (description) updates.description = description;
if (icon ?? favicon) updates.iconUrl = (icon && !icon.includes('data:image/png;base64')) ? icon : favicon;
if (favicon) updates.faviconUrl = favicon;
if (themeColor) updates.themeColor = themeColor;
if (name !== instance.name) updates.name = name;
if (description !== instance.description) updates.description = description;
const iconUrl = (icon && !icon.includes('data:image/png;base64')) ? icon : favicon;
if (iconUrl !== instance.iconUrl) updates.iconUrl = iconUrl;
if (favicon !== instance.faviconUrl) updates.faviconUrl = favicon;
if (themeColor !== instance.themeColor) updates.themeColor = themeColor;
await this.federatedInstanceService.update(instance.id, updates);