Get Small File Action

Get WAL size

Request

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

Description

This HTTP interface allows users to obtain the number of WAL files for specified Backends (BEs). If no BE is specified, it returns the number of WAL files for all BEs.

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. To obtain the number of WAL files for 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 indicates the number of WAL files for that BE.

2. To obtain the number of WAL files for a specified BE.

   curl -u root: "127.0.0.1:8038/api/get_wal_size?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 the BE indicates the number of WAL files for that BE.