prometheus / prometheus/docs

exposition format: How to deal with inconsistent timestamps in text format

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exposition format
Dominant language
TypeScript
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Description

The various components of Histograms and Summaries (buckets, quantiles, count, sum) all get ingested with the same timestamp. However, the text format might specify different timestamps for them.

How to deal with that kind of inconsistency? Last timestamp wins? Warn? Error?

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

No file or test is named. Review the exposition-format guidance covering histogram and summary components, then determine how inconsistent timestamps should be handled: last timestamp wins, a warning, or an error. Done means the chosen behavior is documented clearly, but the issue has had no response for years.

Written by the indexing model from the issue text.

Assessment

Domain
documentation
Issue type
Documentation
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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