[GitHub] [incubator-doris] weizuo93 commented on issue #4329: [Proposal] Optimize the disk selection strategy for tablet creation

[GitBox]

weizuo93 commented on issue #4329:
URL: 
https://github.com/apache/incubator-doris/issues/4329#issuecomment-671969261


   In the simulation experiment, the number of disks on the BE node is set to 
10, and the total number of tablets created after the initial state is 30000.
   
   In the initial state, the distribution of tablets among different disks is 
balanced. When using different disk selection strategies, the number of tablets 
on different disks is distributed as shown in the figure below after all 
tablets are created.
   
![figure_3](https://user-images.githubusercontent.com/68884553/89907059-c0ccd380-dc1e-11ea-99c1-387fe3732200.jpeg)
   
   In the initial state, the distribution of tablets among different disks is 
unbalanced. When using different disk selection strategies, the number of 
tablets on different disks is distributed as shown in the figure below after 
all tablets are created.
   
![figure_4](https://user-images.githubusercontent.com/68884553/89907192-ec4fbe00-dc1e-11ea-8dd2-3d89fa2f492f.jpeg)
   
   
   


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