# TiUP Playground - cont'd

+ Scale out a TiDB Playground cluster
```
tiup playground scale-out --db 2
```

+ Scale in a TiDB Playground cluster
```
tiup playground scale-in --pid 86526
```

------------------------------------------------------------
Statement 1: scale out the TiDB playground cluster to have two TiDB Servers.

Statement 2: scale in the TiDB playground cluster component running with PID 86526.