schedule: redudant schedule in large clusters when the number of regions is small #8184
Labels
affects-7.1
This bug affects the 7.1.x(LTS) versions.
report/customer
Customers have encountered this bug.
type/enhancement
The issue or PR belongs to an enhancement.
Enhancement Task
There are less than only 1000 regions
![image](https://private-user-images.githubusercontent.com/19542290/331214467-d5be8d86-301e-4867-9de2-7b8ceec9ccd8.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.p64XW7d5n8b8RXoVGBz0yStI5xXVEUkOzniyeNeb0XI)
![image](https://private-user-images.githubusercontent.com/19542290/331214436-e256dea9-36ff-4553-89bc-086e1c5d125f.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.LxnZW6s9t6HUrwwNBvczWNau4-QtJlrSzmYuhBKZHRs)
![image](https://private-user-images.githubusercontent.com/19542290/331214545-809c9ec2-7470-40fe-acd8-3f70f7bbead9.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.68BcHihDDamqDMh4oQifxHNi5hIeGSXIFQcDo5jkAgk)
There are 100000 regions
![image](https://private-user-images.githubusercontent.com/19542290/331219503-0f433c4d-b794-4097-9fdf-833ba8a98ed2.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.48mbHdQuvHi5FKAiLu6lKp0RiZHK2ylj3FgpHfSHP4E)
![image](https://private-user-images.githubusercontent.com/19542290/331219641-31993314-40ee-4221-ba3b-5bb9cfb88417.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.LFRV_FksPORjtYHC05tBW9sBvK07bVERwluEWfTk7G0)
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