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Derived metrics (#57)

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* Add time-based derivatived (e.g. bandwidth) to some collectors

* Add documentation

* Add comments

* Fix: Only compute rates with a valid previous state

* Only compute rates with a valid previous state

* Define const values for net/dev fields

* Set default config values

* Add comments

* Refactor: Consolidate data structures

* Refactor: Consolidate data structures

* Refactor: Avoid struct deep copy

* Refactor: Avoid redundant tag maps

* Refactor: Use int64 type for absolut values

Co-authored-by: Holger Obermaier <40787752+ho-ob@users.noreply.github.com>
This commit is contained in:
Thomas Gruber
2022-03-11 13:48:18 +01:00
committed by GitHub
parent 1de3dda7be
commit f6dae7c013
9 changed files with 307 additions and 98 deletions
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16
collectors/netstatMetric.md
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@@ -5,17 +5,23 @@
"netstat": {
"include_devices": [
"eth0"
]
],
"send_abs_values" : true,
"send_derived_values" : true
}
```
The `netstat` collector reads data from `/proc/net/dev` and outputs a handful **node** metrics. With the `include_devices` list you can specify which network devices should be measured. **Note**: Most other collectors use an _exclude_ list instead of an include list.
Metrics:
* `net_bytes_in` (`unit=bytes/sec`)
* `net_bytes_out` (`unit=bytes/sec`)
* `net_pkts_in` (`unit=packets/sec`)
* `net_pkts_out` (`unit=packets/sec`)
* `net_bytes_in` (`unit=bytes`)
* `net_bytes_out` (`unit=bytes`)
* `net_pkts_in` (`unit=packets`)
* `net_pkts_out` (`unit=packets`)
* `net_bytes_in_bw` (`unit=bytes/sec` if `send_derived_values == true`)
* `net_bytes_out_bw` (`unit=bytes/sec` if `send_derived_values == true`)
* `net_pkts_in_bw` (`unit=packets/sec` if `send_derived_values == true`)
* `net_pkts_out_bw` (`unit=packets/sec` if `send_derived_values == true`)
The device name is added as tag `device`.