Daan MeijerandClaude Opus 5.5
9fb36d217c
At ~200 articles/s what the prober stores (inspections, par2 file lists, the WAL) took ~0.8-1.1 GB an hour of homelab's root, and nothing stopped it at the 10 GB floor. Below 12 GB free it claims nothing (resumed 1 GB above): the lanes go dry and its share shrinks to its minimum. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
41 lines
1.5 KiB
TypeScript
41 lines
1.5 KiB
TypeScript
import { statfs } from 'node:fs/promises'
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import logger from '@adonisjs/core/services/logger'
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/** How often free space is measured. */
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const CHECK_MS = 60_000
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/** Resumed only this much above the floor: not paused and resumed at every flush. */
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const MARGIN_GB = 1
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/**
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* Free space on the filesystem holding `path`, against a floor: low below it, again fine MARGIN_GB above it. In a
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* container `/` is an overlay on the host's Docker root, which on homelab is the NVMe the catalog and the WAL are on.
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* The prober filled it ~0.8–1.1 GB an hour at ~200 articles/s, and nothing stopped it at the 10 GB floor (LOG.md
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* 2026-10-18 (77)). Off when the floor is 0.
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*/
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export class DiskSpace {
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private checkedAt = 0
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private low = false
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constructor(
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private what: string,
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private path: string,
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private floorGb: number,
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private free: (path: string) => Promise<number> = async (p) => {
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const s = await statfs(p)
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return s.bavail * s.bsize
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},
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private checkMs = CHECK_MS
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) {}
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async short(): Promise<boolean> {
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if (!this.floorGb) return false
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if (Date.now() - this.checkedAt < this.checkMs) return this.low
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this.checkedAt = Date.now()
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const gb = (await this.free(this.path)) / 1e9
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const was = this.low
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this.low = gb < this.floorGb + (was ? MARGIN_GB : 0)
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if (this.low !== was) logger.info(`${gb.toFixed(1)} GB free (floor ${this.floorGb} GB): ${this.what} ${this.low ? 'paused' : 'resumed'}.`)
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return this.low
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}
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}
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