baiyangzhuhong opened a new issue, #2461:
URL: https://github.com/apache/shardingsphere-elasticjob/issues/2461

   ## Feature Request
   
   **For English only**, other languages will not accept.
   
   Please pay attention on issues you submitted, because we maybe need more 
details. 
   If no response anymore and we cannot make decision by current information, 
we will **close it**.
   
   Please answer these questions before submitting your issue. Thanks!
   
   ### Is your feature request related to a problem?
   
   Yes, here is the detail information.
   
   We use elastic job as job framework in our job applications heavily, however 
our job applications are always running a job in single sharding which means 
the sharding total count is only 1, and our job applications are always 
deploying on more than two servers.
   
   You know, there are many job tasks in one job application, some job tasks 
maybe run quickly and need a little resources, but some job tasks are very 
heavy, need much of resources and running will be elapsed a lot time. The 
problem is for a certain job task is always running on a certain server after 
sharding scheduled, that caused one server would occupy much more CPU and 
memory for all the heavy tasks are running on, but the other server is more 
idle for the running on tasks are lightly.
   
   we want the resources like cpu, memory will be used balanced, and not waste 
some resources just for a standby failover.
   
   ### Describe the feature you would like.
   
   We want one job task to run balanced in multiple servers. 
   
   For example, there is a heavy task that reading file and compare with the DB 
records then do business handling, and there are 3 servers A, B, C  used to 
deploy on. Currently, the builtin sharding strategy in the framework can only 
support to split all the jobs and assign them to different server, like using 
'ROUND_ROBIN' job sharding strategy type, but the assigned job is sticked with 
the server, let's say it is assigned to server A, then can't be changed.
   
   However, what we want to achieve is this heavy task can run on multiple 
servers balanced, like it is firstly running on server A, then the second time 
it will be running on server B, then the third time it will be running on 
server C, and the next time it will be running on server A again, and like this 
in turn.
   
   ### Solution
   
   The elastic job version what we currently using is 3.0.1, and I already 
resolve this problem and finish the solution of this feature. I deploy our job 
applications that using this new feature in our product environment, it works 
well.
   
   I have searched all the open issues that there is no issue talked about this 
feature, and also I check the codes above version 3.0.1, eventually the latest 
master codes, no feature about this. 
   
   So I post this ticket and want to discuss here, could this feature be 
supported in the framework? if it is accepted, I could contribute  the codes 
that I have written to the community. 
   
   
   
   


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