Openjob: best distributed task scheduling framework

What is Openjob?

Openjob is a new distributed task scheduling framework based on Akka. Supports a variety of cronjob, delayed jobs, and workflow. Uses a consistency sharding algorithm and supports unlimited horizontal scaling.

Feature

Openjob not only supports basic cronjob, but also provides delayed jobs, distributed computing, and workflow

Cronjob

Cronjob，support Unix Crontab expression
Second，execution cycle less than 60 seconds
Fixed rate，execute tasks at a fixed frequency with minute unit

Delay Task

Distributed, high-performance delay task based on Redis, and providing rich reports and statistics

Distributed Computing

Standalone， execute on a worker client
Broadcast， execute on all worker clients
Map，a map function can distribute big data to multiple machines for execution, like Hadoop map
MapReduce， MapReduce is an extension of the Map.After all map sub-tasks are completed, the Reduce method is executed, which can process the results and data of the task execution in the Reduce method.
Sharding， like Elastic-Job model, configure sharding numbers on the management, which can be scheduled to different client by sharding, and supports multiple languages.

Processor

Processor, execute by function or class(support Java/Golang/PH)
HTTP, http request, used to periodically request an HTTP
Shell,shell script

Visual operations

Dashboard，rich task statistics and reports
Task history，task execution history records
Task log，complete task log, and suppport storage (H2/Mysql/Elasticsearch).
Task running stack，detailed recording of task execution stack information

Alarms and permissions

Provides task event monitoring alarms, detailed alarm histories, and support notifications with WeChat, Feishu, and webhook triggers.
Designed with namespace, support button-level access and easy to manage complex project.

Multiple languages

Java java and its frameworks, with native support.
Go golang support use go mod install
PHP PHP support use Golang agent to execute task by shell mode 。Swoole frameworks support composer install.
Python python support use Golang agent to execute task by shell mode

Use cases

Openjob is well-suited for business scenarios that have task schedule and delay task. such as every day to clean data and report generation. It is also suitable for lightweight computing, and Map/MapReduce can process big data computing. For complex task flows or workflow, it can design workflow with UI

Open source

Item	Quartz	Elastic-Job	XXL-JOB	Openjob
Cronjob	Cron	Cron	Cron	* Cronjob * second * Onetime * Fixed rate
Delay task	No	No	No	Distributed, high-performance delay task based on Redis
Workflow	No	No	No	Workflow design with UI
Distributed Computing	No	Sharding	Sharding	* Broadcast * Map/MapReduce * Sharding
Multiple languages	Java	* Java * Shell	* Java * Shell	* Java * Go(Gin、beego) * PHP(Swoft) * Python(Agent) * Shell * HTTP * Kettle
Visualization	No	Weak	* Task history * Task log（Not support storage） * Dashboard	* Task history * Task log（support H2/Mysql/Elasticsearch） * Dashboard * Full permissions * Task log stack
Manageable	No	enable、disable task	* enable、disable task * execute once * stop	* enable、disable task * execute once * kill * stop
Alarms	No	email	email	* custom event * email * webhook
Performance	Every task scheduling try to acquire a lock through the database, causes a high pressure on the database	ZooKeeper is performance bottleneck	Task scheduling is only by master, causes a high pressure on master	Uses sharding algorithm, each node can be scheduled without lock, supports unlimited horizontal scaling, and supports big task scheduling

Official website: https://openjob.io
Github: https://github.com/open-job/openjob
Live demo: https://demo.openjob.io

原文链接：Openjob: best distributed task scheduling framework

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