Config Error: Error { inner: ErrorInner { kind: Custom, line: Some(177), col: 0, at: Some(6387), message: "unknown field threads, expected exporter", key: ["metrics"] }

[EsloTech]

Linux 18.04
cbk node version v0.108.0-rc2

error:

`Config Error: Error { inner: ErrorInner { kind: Custom, line: Some(177), col: 0, at: Some(6387), message: "unknown field `threads`, expected `exporter`", key: ["metrics"] } }
Config Error: Error { inner: ErrorInner { kind: Custom, line: Some(177), col: 0, at: Some(6387), message: "unknown field `threads`, expected `exporter`", key: ["metrics"] } }
Config Error: Error { inner: ErrorInner { kind: Custom, line: Some(177), col: 0, at: Some(6387), message: "unknown field `threads`, expected `exporter`", key: ["metrics"] } }
Config Error: Error { inner: ErrorInner { kind: Custom, line: Some(177), col: 0, at: Some(6387), message: "unknown field `threads`, expected `exporter`", key: ["metrics"] } }
Config Error: Error { inner: ErrorInner { kind: Custom, line: Some(177), col: 0, at: Some(6387), message: "unknown field `threads`, expected `exporter`", key: ["metrics"] } }
Config Error: Error { inner: ErrorInner { kind: Custom, line: Some(177), col: 0, at: Some(6387), message: "unknown field `threads`, expected `exporter`", key: ["metrics"] } }`

configuration that was working on old ckb node version:

`[metrics]
threads = 3
histogram_window = 60
histogram_granularity = 1
upkeep_interval = 500

[metrics.exporter.prometheus]
target = { type = "http", listen_address = "0.0.0.0:8100" }
format = { type = "prometheus" }

[metrics.exporter.log_yaml]
target = { type = "log", level = "warn", interval = 600 }
format = { type = "yaml" }

[metrics.exporter.log_json]
target = { type = "log", level = "error", interval = 900 }
format = { type = "json" }`

updated the structure do not accept these lines.

How I should write this on the config file?

Thank you!

[driftluo]

on #2870 we replace metrics-rs with opentelemetry-rust, the metric config has been changed

[EsloTech]

Thank you!
Does it means I should write the config like [opentelemetry] and [[opentelemetry-prometheus] / [opentelemetry-log_yaml] and so on?

[driftluo]

https://github.com/nervosnetwork/ckb/pull/2870/files#diff-b2a0d055961667d0b7fdc3af63de0a8dc90bef7f8a7936dbc0519a72c28319bfR18
it seems only support Prometheus like this line now

[doitian]

An example which is used in ckb.toml:

[metrics.exporter.prometheus]
target = { type = "prometheus", listen_address = "127.0.0.1:8100" }

listen_address is the only configurable option.