influxdata/telegraf

Btrfs statistics input plugin

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#10,032 opened on Oct 29, 2021

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feature requesthelp wantedsize/l

Description

Feature Request

Opening a feature request kicks off a discussion.

Proposal:

A btrfs input plugin offering btrfs-specific information about allocations and error rates. This information is available per-mount in /sys/fs/btrfs/...

Use case:

Btrfs provides more information than other filesystems and a lot of it doesn't generalise well enough to include it in the disk plugin. Zfs is in a similar situation where it gets its dedicated plugin.

Contributor guide

Tech stack
go
Domain
backendobservability
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
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.
mostly clear
Prerequisites
Go programmingTelegraf plugin architectureBtrfs filesystemLinux sysfs
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
35
Research direction
Investigate the Btrfs sysfs interface at /sys/fs/btrfs/<uuid>/ to understand available metrics like allocation and error rates. Study existing Telegraf plugins such as the ZFS plugin (https://github.com/influxdata/telegraf/tree/master/plugins/inputs/zfs) for implementation patterns. Review the issue comments for any additional requirements or maintainer input. Since there are no linked PRs, the work is open, but the issue is stale with minimal recent discussion, so consider asking for clarification on desired metrics and configuration options.