Daan MeijerandClaude Fable 5.1
8e008da364
The discard sweep of a dropped signature read the whole pending_releases table per signature (a parallel seq scan over the poster test, four minutes on the HDD that starved the lanes' claims): a partial index on (group_id, tool, poster) WHERE status = 0 makes it a range, and the sweep queries a poster's rows by it and a tool's and group's by the ladder index. The batch store's pending upsert, the record, and the sweep deadlocked on pending_releases and pending_classes rows locked in different orders, and a deadlocked flush dropped its outcomes: lockOrder() sorts every multi-row statement's set the same way, and a flush that deadlocks anyway keeps its outcomes for the next. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
21 lines
748 B
TypeScript
21 lines
748 B
TypeScript
import { BaseSchema } from '@adonisjs/lucid/schema'
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/**
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* The discard sweep of a dropped signature (tool, group, poster) read the whole pending_releases table per
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* signature: the planner took a parallel seq scan over the poster test, four minutes on the HDD that starved the
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* lanes' claims (LOG.md (134)). The waiting rows by signature make it an index range.
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*/
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export default class extends BaseSchema {
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static disableTransactions = true
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async up() {
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this.schema.raw(
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`CREATE INDEX CONCURRENTLY IF NOT EXISTS pending_releases_signature_idx ON pending_releases (group_id, tool, poster) WHERE status = 0`
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)
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}
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async down() {
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this.schema.raw(`DROP INDEX CONCURRENTLY IF EXISTS pending_releases_signature_idx`)
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}
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}
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