grafana/loki

Document behaviour where succesfully ingested logs will not be queried from the ingester

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#8,621 opened on Feb 24, 2023

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help wantedtype/docs

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Description

Observed behaviour:

  • Loki doesn't don't query ingesters for data that is older than 3 hours
  • Loki does support ingesting logs with a timestamp between now-7days -> now
  • Those logs are ingested, but these will not be queried from the ingesters (by design)
  • This can be confusing, as it looks like logs are not succesfully ingested.
  • These logs will be queryable after a flush and optionally expiration of the TTL of the cached query result in the result cache.

This issue is to not forget to document this behaviour.

Contributor guide

Research direction
Explain in the Loki documentation that ingested logs with timestamps older than 3 hours are not queryable from ingesters, and describe the expected behavior after flush and cache expiration.
Tech stack
go
Domain
backend
Issue type
Documentation
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
1
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Under 1 hour
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
None
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
90