The filesystem is read-only and is often used for a virtual FS
with a configuration file for a virtual machine.
Signed-off-by: Leonid Evdokimov <leon@darkk.net.ru>
This is only a minor change to .format() arguments, and is useful on CentOS6
servers which have only python2.
Signed-off-by: Brian Candler <b.candler@pobox.com>
* Update procfs vendor to pull in github.com/prometheus/procfs/pull/165
* Update mountstats collector to use new types.
* Rollover counter automatically to avoid float64 accuracy issues.
* Update e2e test.
Signed-off-by: Ben Kochie <superq@gmail.com>
* 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>
Python 2.7 will not be maintained past 2020. Therefore upgrade
`text_collector_examples/btrfs_stats.py` to Python 3.
Signed-off-by: Benjamin Drung <benjamin.drung@cloud.ionos.com>
According to the golang docs, the syscall package is deprecated.
https://golang.org/pkg/syscall
This updates collectors to use the x/sys/unix package instead.
Also updates the vendored x/sys/unix module to latest.
Signed-off-by: Paul Gier <pgier@redhat.com>
Previously, the node_textfile_mtime_seconds metric was based on the
Fileinfo.ModTime() of the ioutil.ReadDir() return value. This is based
on lstat() and therefore has unintended consequences for symlinks
(modification time of the symlink instead of the symlink target is
returned). It is also racy as the lstat() is performed before reading
the file.
This commit changes the node_textfile_mtime_seconds metric to be based
on a fresh Stat() call on the open file. This eliminates the race and
works as expected for symlinks. Fixes#1324.
Signed-off-by: Christian Hoffmann <mail@hoffmann-christian.info>
This enables the collection of pressure stall information as exposed
by the `/proc/pressure` interface added in the 4.20 release of the
Linux kernel.
Closes#1174
Signed-off-by: Daniele Sluijters <daenney@users.noreply.github.com>
Minor change to match naming convention in other collectors.
Initialize the proc or sys FS instance once while initializing
each collector instead of re-creating for each metric update.
Signed-off-by: Paul Gier <pgier@redhat.com>
This is an alternative take on the embedded inotify collector:
https://github.com/prometheus/node_exporter/pull/988
The proposed embedded collector was not accepted for inclusion because
it was not possible for a single unprivileged node_exporter process to
detect inotify resource utilisation in other user domains.
This text collector works around the problem by giving the operator a
choice between the following:
- Run only the text collector as root to gain visibility over all
processes on the system.
- Run one or more instances of the text collector as an unprivileged
user to gain visibility over subsets of the system.
In either case, the data generated by this collector can be useful when
hunting down inotify instance leaks -- and when confirming the
resolution of such leaks.
Signed-off-by: Saj Goonatilleke <sg@redu.cx>
This flag causes no ipmi data to be emitted and an error log is generated on each invocation: "awk: not an option: -nf".
I was unable to locate a "-n" flag in the mawk or gawk man pages, so I tested it by manually changing the script on a running Debian buster system. The issue was resolved and metrics were emitted.
Signed-off-by: Cole White <cwhite@wikimedia.org>
The cpu frequency information is not always needed and/or available.
This change allows the cpu frequency metrics to be enabled/disabled
separately from the other cpu metrics, and also prevents a frequency
metric failure (such as a parse error) from failing the main cpu
collector.
Fixes#1241
Signed-off-by: Paul Gier <pgier@redhat.com>
This reduces the system metric collection time by using a wait group
and go routines to allow the systemd metric calls happen concurrently.
Also, makes the start time, restarts, tasks_max, and tasks_current metrics disabled by default
because these can be time consuming to gather.
Signed-off-by: Paul Gier <pgier@redhat.com>
