influxdata/telegraf

MongoDb: Adding availability to call function for collecting user specific metrics

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#11,312 opened on Jun 16, 2022

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Description

Feature Request

Opening a feature request kicks off a discussion.

Proposal:

For collecting user specific metrics it's very usfull call user defined function in MondoDb

Current behavior:

For Now, MongoDb plugin can not call user function;

Desired behavior:

For example, like in redis plugin realized it:

## Optional. Specify redis commands to retrieve values
  # [[inputs.redis.commands]]
  #   # The command to run where each argument is a separate element
  #   command = ["get", "sample-key"]
  #   # The field to store the result in
  #   field = "sample-key-value"
  #   # The type of the result
  #   # Can be "string", "integer", or "float"
  #   type = "string"

Use case:

  1. To get different metrics (which not realized in base mongodb plugin ) based on rs.status()
  2. To get business metrics based on user's collection data.

Contributor guide

Research direction
Study the Redis plugin's command execution pattern in Telegraf, then implement a similar mechanism for MongoDB to allow calling user defined functions (e.g., db.runCommand).
Tech stack
gomongodb
Domain
backenddatabase
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
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
GoMongoDBTelegraf plugin development
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40