View Tablet Distribution
Request
GET /api/tablets_distribution?group_by={enum}&partition_id={int}
Description
Get the distribution of tablets under each partition between different disks on BE node
Query parameters
- 
group_byonly supportspartition - 
partition_idID of the specified partition, Optional with default all partition. 
Request body
None
Response
```
{
    msg: "OK",
    code: 0,
    data: {
        host: "***",
        tablets_distribution: [
            {
                partition_id:***,
                disks:[
                    {
                        disk_path:"***",
                        tablets_num:***,
                        tablets:[
                            {
                                tablet_id:***,
                                schema_hash:***,
                                tablet_size:***
                            },
                            ...
                        ]
                    },
                    ...
                ]
            }
        ]
    },
    count: ***
}
```
Examples
```
curl "http://127.0.0.1:8040/api/tablets_distribution?group_by=partition&partition_id=123"
```