mafintosh/torrent-stream

Cache bitfield to disk

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#27 opened on Apr 26, 2014

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 (3 comments) (0 reactions) (0 assignees)JavaScript (1,936 stars) (247 forks)batch import
help wanted

Description

Currently every restart will result in all stored data being reverified. We should cache the bitfield to disk once in while so this is not needed.

Contributor guide

Tech stack
javascriptnodejs
Domain
dataperformance
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Node.js file systemBitfield data structures
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50
Research direction
Investigate the current bitfield implementation in the codebase, likely in a file such as 'bitfield.js'. Understand the data structure used and where to insert periodic disk writes. Use Node's fs module to write the bitfield to a temporary file on a timer, and load it on startup. Review any existing caching mechanisms in the project and consider edge cases like concurrent access.