30 lines
1.4 KiB
TypeScript
30 lines
1.4 KiB
TypeScript
import { BaseSchema } from '@adonisjs/lucid/schema'
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/**
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* par2_files, with its indexes, back in the catalog's tablespace (default_tablespace: nvme on homelab), out of
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* CHUNK_TABLESPACE where 3200 put it: the merger matches every new file hash against it and reads each set's rows, a
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* random read per row on the HDD (~1,090 sets/min, a full round ~28 h; LOG.md 2026-10-15 (58)). Homelab rebuilt it
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* there by hand without the complete and judged sets' rows (app/services/par2_pruner.ts; LOG.md 2026-10-16 (60)); a
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* no-op where it's there already, or without a default tablespace (tests).
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*/
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export default class extends BaseSchema {
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async up() {
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this.defer(async (db) => {
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const { rows: setting } = await db.rawQuery(`SELECT current_setting('default_tablespace') AS target`)
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const target = setting[0].target
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if (!target) return
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const { rows } = await db.rawQuery(
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`SELECT c.relname, c.relkind FROM pg_class c LEFT JOIN pg_tablespace t ON t.oid = c.reltablespace
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WHERE (c.relname = 'par2_files' OR c.oid IN (SELECT indexrelid FROM pg_index WHERE indrelid = 'par2_files'::regclass))
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AND coalesce(t.spcname, 'pg_default') <> ?`,
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[target]
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)
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for (const { relname, relkind } of rows) {
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await db.rawQuery(`ALTER ${relkind === 'i' ? 'INDEX' : 'TABLE'} ${relname} SET TABLESPACE ${target}`)
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}
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})
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}
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async down() {}
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}
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