Evolution of xxl-job architecture for distributed scheduling

The last article introduced distributed scheduling XXL-JOB Characteristics of , It can let you know that when selecting technology , What problems can this component help you solve 、 Access cost and maintenance cost . This article mainly introduces distributed scheduling XXL-JOB Architecture evolution process .

1、XXL-JOB Architecture diagram v1.1 edition

As you can see from the above figure ,v1.1 The architecture is divided into two parts , Dispatch centers and actuators （ Your business microservices ）, The dispatch center contains 3 large , Namely ：

（1） Task pool ： Manage all scheduling tasks

（2） Scheduler ： Be responsible for scheduling tasks in the task pool

（3） Scheduling log ： Be responsible for recording the results of each dispatch

There are two modules in the actuator , Namely ：

（1） Scheduling queues ： The storage scheduling center is responsible for sending scheduling requests for tasks in the task pool

（2） Task execution ： It mainly executes the corresponding business logic according to the scheduling request

2、XXL-JOB Architecture diagram v1.3

v1.3 Compared with the previous architecture , Clearer module division , There is an actuator address in the dispatching center , The scheduler is based on quartz To schedule 、 Callback service and GLUE journal

3、XXL-JOB Architecture diagram v1.5

from v1.5 You can see , More registration modules , That is, business microservices are accessing XXL-JOB after , When the service starts, it will automatically register the service ip Address to xxl_job_group Tabular address In the address .

4、XXL-JOB Architecture diagram v1.7～v1.9

From the figure, we can see that the architecture has evolved to 1.9 version , There have been many new functions and optimizations , among 1.7 The actuator is automatically registered when , In the later version iteration, the registration service is called through the registration thread in the actuator api Register for services , And start self-study RPC

5、XXL-JOB Architecture diagram v2.0.0

6、XXL-JOB Architecture diagram v2.1.0

In this version , It's based on quartz The scheduling of is transformed into based on timewheel The scheduling

The above is distributed scheduling XXL-JOB The evolution of Architecture , I hope you have a good understanding of distributed scheduling XXL-JOB Have a better understanding .

Thanks to the open source authors for the distributed scheduling XXL-JOB The contribution of ！