On Linux, we get more detailed interface statistics from netlink than we did
from `/proc/net/dev`.
This commit adds a new flag (`--collector.netdev.enable-detailed-metrics`) to
expose those statistics under new (incompatible) metric names. When enabled,
the metric names are also changed on Darwin and BSD platforms to keep
everything consistent, but it doesn't provide more detailed statistics on those
platforms.
The old metrics can be derived from the new ones using the following rules
([dev_seq_printf_stats]):
- `receive_errs` = `receive_errors`
- `receive_drop` = `receive_dropped` + `receive_missed_errors`
- `receive_fifo` = `receive_fifo_errors`
- `receive_frame` = `receive_length_errors` + `receive_over_errors` + `receive_crc_errors` + `receive_frame_errors`
- `receive_multicast` = `multicast`
- `transmit_errs` = `transmit_errors`
- `transmit_drop` = `transmit_dropped`
- `transmit_fifo` = `transmit_fifo_errors`
- `transmit_colls` = `collisions`
- `transmit_carrier` = `transmit_aborted_errors` + `transmit_carrier_errors` + `transmit_heartbeat_errors` + `transmit_window_errors`
[dev_seq_printf_stats]: https://github.com/torvalds/linux/blob/master/net/core/net-procfs.c#L75-L97
Signed-off-by: Benoît Knecht <bknecht@protonmail.ch>
Fix the error logging of the promhttp handler by connecting it to the
promlog setup.
* Switch to go-kit/log.
* Cleanup CHANGELOG.
Fixes: https://github.com/prometheus/node_exporter/issues/1886
Signed-off-by: Ben Kochie <superq@gmail.com>
* Check interface name before loading interface data
* Reduce indentation
* Optimize nested netdev map
This change avoids conversion to strings and back.
Signed-off-by: Julian Kornberger <jk+github@digineo.de>
* Add --collector.netdev.device-whitelist flag
Sometimes it is desired to monitor only one netdev. The golang regexp
does not support a negated regex, so the ignored-devices flag is too
cumbersome for this task.
This change introduces a new flag: accept-devices, which is mutually
exclusive to ignored-devices. This flag allows specifying ONLY the
netdev you'd like.
Signed-off-by: Noam Meltzer <noam@cynerio.co>
