# `Hot` Backups

+ **`Hot`** backups take place while the data is being read and modified
+ The system remains accessible for operations that read and modify data
+ Using **`MVCC`** for consistency
+ No locking at all so that applications can continue accessing the data with read and write operations

-------------------------------------------------------------
`Multiversion Concurrency Control (MVCC)` is a feature of the `TiDB` that uses multiple historical versions of KV entries to maintain the consistency of concurrent data access at a certain point in time.