ozontech / ozontech/seq-db

Metric: Add disk read/write latency metric

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Dominant language
Go
Stars
131
Forks
16
Avg merge
2d 4h
Merged PRs (30d)
11

Description

Now we do not have metric which tracks how much we spent doing IO disk operations.
I think it would be nice to have such metric for troubleshooting purposes.

Discussed here - https://github.com/ozontech/seq-db/pull/167#discussion_r2003204361

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the discussion linked from the issue, https://github.com/ozontech/seq-db/pull/167#discussion_r2003204361, to understand the expected metric and relevant disk I/O paths. Trace how existing metrics are defined and recorded, then verify that read and write latency is exposed for troubleshooting.

Written by the indexing model from the issue text.

Assessment

Tech stack
go
Domain
database, observability
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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