## Templates
### Section property
> - **Objective:** which aspect to evaluate / what to learn from the section
> - **Prerequisites:** background knowledges / TiDB concepts (provide links) / prerequisite tasks / required hardware resources
> - **Optionality:** Required / Optional / recommended in some cases (be specific) / cannot perform in some cases (make it specific)
> - **Estimated time:** Time required to complete this task
### SubSection property
> - **Optionality:** Required / Optional / recommended in some cases (be specific) / cannot perform in some cases (make it specific)
### Operation and Verify
describe the operation
#### Commands
describe the command
```
$ command-1 arg-1 arg-2
$ command-2 arg-3 arg-4 arg-5
```
#### Verify
describe the verify method
```
$ check-command args-1
sample output1
sample output2
```
#### Troubleshooting
##### describe the unusual case
describe the reason and how to fix
##### describe another unusual case
describe the reason and how to fix