OpenBazaar/OpenBazaar-Server

Images that don't download

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#454 opened on Jul 1, 2016

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 (2 comments) (0 reactions) (1 assignee)Python (612 stars) (187 forks)batch import
Help wanted

Description

From Duo Search scraping the OpenBazaar network, we commonly find store images that do not download (we regularly retry downloads). It's still unclear to us why there are stores for which we have troubles downloading images.

In terms of statistics, we have 36,364 image hashes as referenced by image_hashes, avatar_hash and header_hash. Of those, we haven't been able to download 1544 images, or about 4.2%.

Because Duo Search does not display listings with missing images, vendors with missing images regularly complain that their listings don't show up. Any ideas what could be going wrong?

Contributor guide

Tech stack
python
Domain
backend
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
over 1 week
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.
unclear
Prerequisites
basic Pythonunderstanding of peer to peer networks
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
15
Research direction
Examine the image download logic in the server code, focusing on retry mechanisms and handling of image hashes, avatar hash, and header hash. Look for any recent changes or open issues related to image download failures. Check the OpenBazaar protocol documentation for image storage and retrieval. Consider network connectivity issues or IPFS node availability as potential causes.