firefox-devtools/profiler

Cannot read a json file produced by hawktracer

Open

#3,112 opened on Dec 18, 2020

View on GitHubContributor guide
 (2 comments) (0 reactions) (0 assignees)TypeScript (486 forks)auto 404
help wantedprofile data

Repository metrics

Stars
 (1,515 stars)
PR merge metrics
 (PR metrics pending)

Description

Hi!

I've run the following command on this trace.zip:

hawktracer-converter-rs --source trace.bin --output-file trace.json

and I've got the following error when I tried to load the trace.json file on the profiler:

Couldn't read the file or parse the profile in it.

Error: Unserializing the profile failed: SyntaxError: JSON.parse: unexpected end of data at line 1 column 6837385 of the JSON data

Thanks in advance for your help! :)

┆Issue is synchronized with this Jira Task

Contributor guide

Research direction
Investigate the JSON parsing logic in the profiler to handle incomplete JSON data from external converters. Check the file reading function and see if there's a size limit or truncation issue.
Tech stack
typescript
Domain
web dev
Issue type
Bug
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.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
JavaScriptTypeScript
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65