scatter causes the isolation level to degrade
Open
affects-6.5
affects-7.1
affects-7.5
affects-8.1
affects-8.5
contribution
report/customer
severity/major
type/bug
- Dominant language
- Go
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Description
## Bug Report
### What did you do?
### What did you expect to see?
### What did you see instead?
One cluster, with location-level set to "host" and isolation-level set to "host" too; four tikv instances were deployed on the same host and share the same "host" label.
As shown in the following picture, one scatter region moves 3 peers distributed across 3 hosts to 1 host, resulting in a degradation in isolation level.
### What version of PD are you using (`pd-server -V`)?
v7.5.2
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Assessment
This issue has not been assessed yet.