Get WAL size

Request

GET fe_host:fe_http_port/api/get_wal_size?host_ports=host1:port1,host2:port2...

Description

Through this HTTP interface, users can get the number of WAL files of a specified BE. If no BE is specified, the number of WAL files of all BEs is returned by default.

Path parameters

None

Query parameters

• host_ports

  The IP and HTTP port of the BE.

Request body

None

Response

{
"msg": "OK",
"code": 0,
"data": ["192.168.10.11:9050:1", "192.168.10.11:9050:0"],
"count": 0
}

Examples

1. Get the number of WAL files of all BEs.

   curl -u root: "127.0.0.1:8038/api/get_wal_size"
   
   Response:
   {
   "msg": "OK",
   "code": 0,
   "data": ["192.168.10.11:9050:1", "192.168.10.11:9050:0"],
   "count": 0
   }

   In the returned result, the number following each BE is the WAL file count of that BE.

2. Get the number of WAL files of a specified BE.

   curl -u root: "127.0.0.1:8038/api/get_wal_size?host_ports=192.168.10.11:9050"
   
   Response:
   {
   "msg": "OK",
   "code": 0,
   "data": ["192.168.10.11:9050:1"],
   "count": 0
   }

   In the returned result, the number following each BE is the WAL file count of that BE.