# Hot Spots Issue

+ The ideal state of each component in a distributed architecture: relatively balanced resource utilization


![left](./student-guide/diagram/21-Why-solve-hot-spots-01-01.png)

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In a distributed architecture, the ideal state for each component is to have relatively balanced resource utilization.

TiDB is a distributed database, and the data is distributed relatively evenly among the TiKV nodes. When one of the TiKV nodes is busy, the TiKV cluster will have a “cask effect”. The overall performance is determined by the lowest board, which will affect the performance of the entire cluster.

Hot spots create congestions, so it needs to be avoided to a certain extent during the development of the design table schema and the later operation and administer management cluster stage.