coderabbitai[bot]
commented
2 months ago Walkthrough
The recent changes enhance the tracking of background goroutines by modifying key methods to accept metrics and task type parameters. This allows for improved monitoring of background tasks via Prometheus, facilitating better management and observability of worker counts. Such updates ensure that metrics accurately reflect the state of goroutines, thus supporting proactive performance management.
Changes
| Files | Change Summary |
|---|---|
server/backend/background/background.go, server/packs/packs.go |
Enhanced methods to include metrics tracking and identifiers, allowing for improved observability of background tasks. |
server/backend/backend.go |
Updated background instance creation to include metrics, improving task management capabilities. |
test/integration/retention_test.go, test/integration/snapshot_test.go |
Updated tests to reflect new method signatures for better metrics integration. |
Assessment against linked issues
| Objective | Addressed | Explanation |
|---|---|---|
| Collect Worker Count Metric that Runs Through the Background Package (#386) | ✅ |
Poem
🐇 In the garden where shadows play,
Metrics dance and count the day.
With each task that hops along,
Background workers sing their song.
Watch them flourish, one and all,
Thanks to changes, stand up tall! 🌼✨
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krapie
kokodak
What this PR does / why we need it:
This PR adds a metric to collect the number of goroutines attached to a specific Background task.
Prometheus provides its own thread-safe Gauge metric, which can be used to accurately collect the number of concurrent goroutines.
Also, although the only task running in the background so far is PushPull, I implemented the
AttachGoroutine()method to take a string calledtaskTypeas a parameter, since it seems to be focused on reusability.In my local Grafana, I observed the metrics with a simple promQL query like the one below.
The expected effect is that it will be easy to identify which background tasks are bottlenecking and when. For example, during the logic of saving snapshots, the number of observed goroutines may temporarily increase when the DB bottleneck causes each goroutine to have a longer lifecycle. This kind of analysis would help us prevent such issues.
Which issue(s) this PR fixes:
Fixes #386
Special notes for your reviewer:
If you think there's a better metric or promQL to get more meaningful data, please feel free to comment.
Does this PR introduce a user-facing change?:
Additional documentation:
Checklist:
Summary by CodeRabbit
Summary by CodeRabbit
New Features
Improvements
AttachGoroutine,PushPull, and other related functions.These changes significantly enhance the ability to manage and monitor background tasks within the application.