Graylog2/graylog2-server

Pipeline stream connections are not deleted when deleting a pipeline

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#21,008 opened on Nov 20, 2024

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Description

When deleting a pipeline, all dependent data should also be deleted. In particular for collection pipeline_processor_pipelines_streams:

  • delete the pipeline ID from all pipeline_ids lists
  • delete the entire document, if the deleted pipeline ID was the only one in that connection

Caveat: never delete the default stream connection of the default routing pipeline "All Messages Routing". See Graylog2/graylog-plugin-enterprise/issues/9589 for context.

Current Behavior

Obsolete connection documents remain in the DB.

Steps to Reproduce (for bugs)

  1. Create a pipeline and connect it to a stream
  2. Delete the pipeline
  3. Observe that the pipeline ID is still part of a connection document

Your Environment

  • Graylog Version: 6.2

Contributor guide

Research direction
Inspect the pipeline deletion logic in the service layer, identify where pipeline processor pipelines streams collection is updated, and implement cascading deletion of pipeline references, ensuring the default stream connection for 'All Messages Routing' is preserved.
Tech stack
java
Domain
backend
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Git
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70