Gather Kibana health metrics

[yuriy-slobodchikov]

Feature Request

Kibana health check plugin
( @danielnelson )

Opening a feature request kicks off a discussion.

Proposal:

Adding Kibana health check plugin

Current behavior:

No Kibana health check via localhost:5601/api/status
https://www.elastic.co/guide/en/kibana/6.3/access.html#status

Desired behavior:

To have ability to get metrics and plugin health checks from json localhost:5601/api/status
For "state" also should be created additional state_code (sometimes it is more convenient to have numeric thresholds in grafana)
transformation from
"green" - 0
"yellow" - 1
"red" - 2
any other - 3

{
"name": "my-kibana",
"uuid": "e279c9b7-2125-436b-822e-75e3c179a79f",
"version": {
"number": "6.3.0",
"build_hash": "c360fcacca5594000a2f7c80fe2dcaad5c7ee52c",
"build_number": 17230,
"build_snapshot": false
},
"status": {
"overall": {
"state": "green",
"title": "Green",
"nickname": "Looking good",
"icon": "success",
"since": "2018-06-28T13:16:31.537Z"
},
"statuses": [
{
"id": "plugin:kibana@6.3.0",
"state": "green",
"icon": "success",
"message": "Ready",
"since": "2018-06-28T13:16:31.537Z"
},
...
]
},
"metrics": {
"last_updated": "2018-08-21T10:41:51.024Z",
"collection_interval_in_millis": 5000,
"uptime_in_millis": 4656520644,
"process": {
"mem": {
"heap_max_in_bytes": 208896000,
"heap_used_in_bytes": 161749976
}
},
"os": {
"cpu": {
"load_average": {
"1m": 0.0029296875,
"5m": 0.0146484375,
"15m": 0.04541015625
}
},
"cgroup": {
"cpuacct": {
"control_group": "/system.slice/kibana.service",
"usage_nanos": 14313207367574
},
"cpu": {
"control_group": "/system.slice/kibana.service",
"cfs_period_micros": 100000,
"cfs_quota_micros": -1,
"stat": {
"number_of_elapsed_periods": 0,
"number_of_times_throttled": 0,
"time_throttled_nanos": 0
}
}
}
},
"response_times": {
"avg_in_millis": 1,
"max_in_millis": 1
},
"requests": {
"total": 1,
"disconnects": 0,
"status_codes": {
"200": 1
}
},
"concurrent_connections": 1
}
}

Use case: [Why is this important (helps with prioritizing requests)]

It is usefull to have metrics not only for Elastic but also for Kibana itself.

[lpic10]

That definitely could be useful, but as a separated kibana plugin

[danielnelson]

Renamed issue to leave the implementation open ended, but I agree it likely should be a standalone plugin.

[lpic10]

Ok, so I worked on a simple standalone kibana input plugin, I should open a PR later today or tomorrow

[sspaink]

Resolved with #4585