Currently, Doris only has one interface for querying specific FE session information, and many times we need to know how many session information there are in the current cluster, so I added this API.
`
GET /rest/v1/session/all
{
"msg": "success",
"code": 0,
"data": {
"column_names": ["FE", "Id", "User", "Host", "Cluster", "Db", "Command", "Time", "State", "Info"],
"rows": [{
"FE": "10.14.170.23",
"User": "root",
"Command": "Sleep",
"State": "",
"Cluster": "default_cluster",
"Host": "10.81.85.89:31465",
"Time": "230",
"Id": "0",
"Info": "",
"Db": "db1"
},
{
"FE": "10.14.170.24",
"User": "root",
"Command": "Sleep",
"State": "",
"Cluster": "default_cluster",
"Host": "10.81.85.88:61465",
"Time": "460",
"Id": "1",
"Info": "",
"Db": "db1"
}]
},
"count": 2
}
`
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