* Improve metrics filesystem scanning logic
* Makes ioctl syscalls to load the device error stats.
* Adds filesystem mountpoint labels to existing metrics for ease of use.
Signed-off-by: Marcus Cobden <leth@users.noreply.github.com>
The textfile collector will now provide a unified metric description
(that will look like "Metric read from file/a.prom, file/b.prom")
for metrics collected accross several text-files that don't already
have a description.
Also change the error handling in the textfile collector tests to
ContinueOnError to better mirror the real-life use-case.
Signed-off-by: Guillaume Espanel <guillaume.espanel.ext@ovhcloud.com>
Signed-off-by: Guillaume Espanel <guillaume.espanel.ext@ovhcloud.com>
* Allow user to select port on NTP server to query
Some people (me!) run NTP servers on non-privileged ports. The `github.com/beevik/ntp` package allows overriding the port, so this change just adds a flag `collector.ntp.server-port` (defaults to 123) and then passes that value through to the query via the `QueryOptions`.
Signed-off-by: Andrew Rowson <github@growse.com>
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>
To prepare for the introduction of new metric names, add tests for the legacy
metric names and values. This will make it easier to ensure that the code that
converts the new metrics to the old ones (for compatibility) behaves correctly.
Signed-off-by: Benoît Knecht <bknecht@protonmail.ch>
Since netdev metrics are now read from netlink instead of `/proc/net/dev`, we
can't easily spoof them for the end-to-end tests by reading a fixture file in
place of `/proc/net/dev`.
Therefore, we only get metrics for `lo` and ignore those that would return
unpredictable values (i.e. the byte and packet counters).
Signed-off-by: Benoît Knecht <bknecht@protonmail.ch>
Instead of parsing `/proc/net/dev` to get network interface statistics, get
them from a netlink call.
Internally, both come from the [rtnl_link_stats64] struct, but with
`/proc/net/dev`, some of the values are aggregated together in
[dev_seq_printf_stats], so we get less information out of them.
This commit maintains compatibility by aggregating those stats back into the
same metrics.
[rtnl_link_stats64]: https://github.com/torvalds/linux/blob/master/include/uapi/linux/if_link.h#L42-L246
[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>
These two memory classes have been here for a while now in FreeBSD,
adding them allows having information for all memory classes.
Signed-off-by: François Charlier <fcharlier@ploup.net>
Log a single error message when the udev data directory (`/run/udev/data` by
default) is unreadable, and then don't try to get device properties out of it.
Also lower the log level from error to debug when we can't parse the udev files
properly, since these messages would be sent every time the node exporter gets
scraped.
Signed-off-by: Benoît Knecht <bknecht@protonmail.ch>
When parsing udev data, skip lines that don't start with `E:`.
Lines prefixed with `E:` represent device properties, as documented in
udevadm(8).
Signed-off-by: Benoît Knecht <bknecht@protonmail.ch>
Set the `--path.udev.data` flag to point to the udev fixture, and update the
output fixture with
```console
$ ./end-to-end-test.sh -u
```
Signed-off-by: Benoît Knecht <bknecht@protonmail.ch>
Now that we read some data from `/run/udev/data`, add the corresponding
fixtures and update the expected test results accordingly.
Signed-off-by: Benoît Knecht <bknecht@protonmail.ch>
Instead of hard-coding the path to `/run/udev/data`, intoduce a
`--path.udev.data` flag that defaults to that value.
Signed-off-by: Benoît Knecht <bknecht@protonmail.ch>
Add labels to the `node_disk_info` metric extracted from udev, such as `model`,
`path`, `revision`, `serial` and `wwn`.
Also add a few metrics related to filesystem and device mapper, which are also
extracted from udev information.
Signed-off-by: Benoît Knecht <bknecht@protonmail.ch>
Use standard include/exclude pattern for device include/exclude in the
diskstats collector.
Signed-off-by: Ben Kochie <superq@gmail.com>
Co-authored-by: rushilenekar20 <rushilenekar20@gmail.com>
Fix up handling of CPU info collector on non-x86_64 systems due to
fixtures containing `/proc/cpuinfo` from x86_64.
* Update e2e 64k page test fixture from an arm64 system.
* Enable ARM testing in CircleCI.
Fixes: https://github.com/prometheus/node_exporter/issues/1959
Signed-off-by: Ben Kochie <superq@gmail.com>
* Correctly name collector file.
* Fix cgroup summary type as gauge.
* Use a boolean metric rather than a label for enabled.
Signed-off-by: Ben Kochie <superq@gmail.com>
