Resumable historical backfill orchestrator

[Miracle656]

Background

Bringing up a new deployment requires backfilling history. A resumable orchestrator makes this reliable over millions of ledgers.

What to build

A backfill job that processes ledger ranges in chunks, persists a durable cursor, parallelizes within bounds, and resumes exactly where it left off after a crash — without conflicting with live ingest.

Key files

• src/ingest/backfill.ts (new)
• src/cli.ts (backfill command)

Acceptance criteria

• Cursor persisted; restart resumes mid-range
• Backfill coexists with live ingest without gaps/dupes
• Tests for chunking and resume

Drips Wave · Complexity: Advanced · 200 points

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[Devadakene]

@Devadakene has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

I am confident that i can implement this issue having worked on something similar in the past

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[Danto1606]

@Danto1606 has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

I would like to work on this

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Congratulations, @Danto1606! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 30, 2026.

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