apache/pinot

Allow to use cron to schedule the controller periodical tasks

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#14051 opened on Sep 22, 2024

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 (6 comments) (0 reactions) (1 assignee)Java (4,937 stars) (1,234 forks)batch import
enhancementgood first issuehelp wanted

Description

Current cron job schedule is based on the controller start time, we should have a way to schedule it run at a given CRON setting.

Contributor guide

Tech stack
java
Domain
backend
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.
blocked
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
JavaCron syntaxPinot controller architecture
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40
Research direction
The current schedule is based on controller start time. The goal is to support a CRON expression for periodic tasks. Examine the Pinot controller source code (e.g., in pinot controller module) to locate where tasks are currently scheduled. Consider using a cron library like Quartz or CronUtils. Review the issue comments for any design direction or constraints.