[Feature Request] Get Node watermark by API

[tmanninger]

Is your feature request related to a problem? Please describe

Hi,

is there an API available the get the "current mark" status by node? (low, high, flood-stage)

If there is no API, I can create a Pull Request to add it to the Node- API.

Describe the solution you'd like

Something like

GET _nodes

{
  "_nodes": {
    "total": 4,
    "successful": 4,
    "failed": 0
  },
  "cluster_name": "ixo-prod-log-a",
  "nodes": {
    "J60tAmKeTH2UFE4w_hl7Tg": {
      "name":  "nodename!",
      ...
      "watermark_state: "low",
     ...
   }
}

Possible values: "ok (??), low, high, flood_stage"

Related component

No response

Describe alternatives you've considered

No response

Additional context

No response

[andrross]

You can do:

GET /_cat/nodes?v&h=name,disk.avail,disk.used,disk.total,disk.used_percent

name      disk.avail disk.used disk.total disk.used_percent
node-1       168.9gb   291.4gb    460.4gb             63.31

It doesn't actually tell you the disk watermark stage (though the watermark settings can be fetched with GET /_cluster/settings?pretty&include_defaults) but it does provide you more details about actual storage availability.