Tcp SYN packet retransmits are a very useful signal as they affect
network performance disproportionately to regular TCP retransmits.
Signed-off-by: Ben Kochie <superq@gmail.com>
In some cases the file might be called "temp" instead of the usual format "temp<index>_<item>"
as described in the kernel docs: https://www.kernel.org/doc/Documentation/hwmon/sysfs-interface
In this case, treat this as an _input file containing the current temperature reading.
Fixes#1122
Signed-off-by: Paul Gier <pgier@redhat.com>
* Update Linux cpufreq collector to use new procfs library functions.
* Split thermal throttle collection to a separate function.
* Add new required fixtures and repack ttar file.
Signed-off-by: Ben Kochie <superq@gmail.com>
The format of /proc/diskstats is changing in linux-4.19 to include some
additional fields. See: https://www.kernel.org/doc/Documentation/iostats.txt
* collector/diskstats: use constants for some hard coded strings
* collector/diskstats: update diskstats for linux-4.19
* collector/diskstats: remove kernel doc url from individual metrics
Signed-off-by: Paul Gier <pgier@redhat.com>
* infiniband: Add not connected i40iw0/ports/1 fixtures
* infiniband: Handle issue when iWARP* RDMA modules are not available
This is related to #966, and handle this error,
Jun 07 13:33:24 hostname node_exporter[81888]: time="2018-06-07T13:33:24+02:00" level=error msg="ERROR: infiniband
collector failed after 0.000929s: strconv.ParseUint: parsing \"N/A (no PMA)\": invalid syntax" source="collector.go:132"
Signed-off-by: Mario Trangoni <mjtrangoni@gmail.com>
* strip rootfs prefix for run in docker
* Use `/` as default value of path.rootfs, and parse mounts from `/proc/1/mounts`.
* No need to mount `/proc` and `/sys` because we share host's PID
namespace, which allows processes within the container to see all of the
processes on the system.
Closes: #66
Signed-off-by: Ivan Mikheykin <ivan.mikheykin@flant.com>
Signed-off-by: Yecheng Fu <cofyc.jackson@gmail.com>
Starting with (not yet released) OpenBSD 6.4, sysctl KERN_CPTIME2 will
return ENODEV for offline CPUs.
SMT siblings are reported as offline when hw.smt is disabled, which is
the default since one of the later Spectre variants. So this might
affect a few systems.
For more details see:
https://cvsweb.openbsd.org/src/sys/kern/kern_sysctl.c#rev1.348
Signed-off-by: Ralf Horstmann <ralf+github@ackstorm.de>
When starting Docker containers a whole bunch of netns (network
namespace) mounts are created that the node exporter can't make any
sense of (and can't read either).
This ignores all nsfs filesystems.
Fixes#875
Signed-off-by: Daniele Sluijters <daenney@users.noreply.github.com>
* Change systemd unit filtering
Get all units from systemd and filter in Go.
* Improves compatibility with older versions of systemd.
* Improve debugging by printing when units pass the filter.
* Remove extraneous newlines from log messages.
Signed-off-by: Ben Kochie <superq@gmail.com>
This removes the cgo import from timex collector, as it was only used
to define two constants. Those are part of the Linux kernel<->userspace
interface, thus there is no need to depend on libc to source them:
https://github.com/torvalds/linux/blob/v4.18/include/uapi/linux/timex.h
Signed-off-by: Luca Bruno <luca.bruno@coreos.com>
* Correctly cast Darwin memory info
* Cast stats to float64 before doing math on them to avoid integer
wrapping.
* Remove invalid `_total` suffix from gauge values.
* Handle counters in `meminfo.go`.
Signed-off-by: Ben Kochie <superq@gmail.com>
Fix typo on unit description of metric `*read_time_seconds_total` from milliseconds to seconds.
Signed-off-by: Marco Tulio R Braga <marco.tulio@mtulio.eng.br>
* If NRestarts or NRefused are not available, don't ignore the unit itself
* Don't report systemd metrics (NRestarts/NRefused) that are not available
Signed-off-by: James Hartig <james@getadmiral.com>
PIDs can vanish (exit) from /proc/ between gathering the list of PIDs
and getting all of their stats.
* Ignore file not found errors.
* Explicitly count the PIDs we find.
* Cleanup some error style issues.
Signed-off-by: Ben Kochie <superq@gmail.com>
* Replace supervisord xmlrpc library
* Use `github.com/mattn/go-xmlrpc` that doesn't leak goroutines.
* Fix uptime metric
* Use Prometheus best practices for uptime metric.
* Use "start time" rather than "uptime".
* Don't emit a start time if the process is down.
* Add changelog entry.
* Add example compatibility rules.
Signed-off-by: Ben Kochie <superq@gmail.com>
* vendor: Update prometheus/procfs
Signed-off-by: Hannes Körber <hannes.koerber@haktec.de>
* mountstats: Use new NFS protocol field
In https://github.com/prometheus/procfs/pull/100, the NFSTransportStats
struct was expanded by a field called protocol that specifies the NFS
protocol in use, either "tcp" or "udp". This commit adds the protocol as
a label to all NFS metrics exported via the mountstats collector.
Signed-off-by: Hannes Körber <hannes.koerber@haktec.de>
* Update fixtures for UDP mount
Signed-off-by: Hannes Körber <hannes.koerber@haktec.de>
It is quite common to put /var/lib/docker itself on a separate partition
and that should be monitored as well.
Signed-off-by: Johannes Wienke <languitar@semipol.de>
While the statfs(2) approach is reliable for normally mounted filesystems, the
flags returned can be inconsistent when filesystem has been remounted read-only
after encountering an error. The returned flags do accurately represent the
internal state of the filesystem, but they do not reflect whether the VFS layer
will accept writes. Instead, it makes sense to parse the current VFS mount
state from the options field in /proc/mounts since it takes precedence.
Signed-off-by: Brandon Gilmore <bgilmore@valvesoftware.com>
* add sys/class/net parsing from procfs and expose its metrics
Signed-off-by: Jan Klat <jenik@klatys.cz>
* change code to use int pointers per procfs change, move netclass to separate collector, change metric naming
Signed-off-by: Jan Klat <jenik@klatys.cz>
* bump year in licence, remove redundant newline, correct fixtures
Signed-off-by: Jan Klat <jenik@klatys.cz>
* fix style
Signed-off-by: Jan Klat <jenik@klatys.cz>
* change carrier changes to counter type
Signed-off-by: Jan Klat <jenik@klatys.cz>
* fix e2e output
Signed-off-by: Jan Klat <jenik@klatys.cz>
* add fixtures
Signed-off-by: Jan Klat <jenik@klatys.cz>
* update vendor, use fixtures correctly
Signed-off-by: Jan Klat <jenik@klatys.cz>
* change fixtures (device in /sys/class/net should be symlinked)
Signed-off-by: Jan Klat <jenik@klatys.cz>
* correct fixtures for 64k page, updated readme
Signed-off-by: Jan Klat <jenik@klatys.cz>
Fixed spelling mistakes.
Update transport_generic.go
Changed to a mutex approach instead of channels and added a timeout before declaring a mount stuck.
Removed unnecessary lock channel and clarified some var names.
Fixed style nits.
Signed-off-by: Mark Knapp <mknapp@hudson-trading.com>
* Add support for NRestarts counter introduced in systemd 235
`.service` units increment this counter any time the Restart= condition is
triggered.
Signed-off-by: Matthew McGinn <mamcgi@gmail.com>
* Send "Personality unknown" to debug, not info, remove unnecessary newline.
* Add support for "linear" personality.
* Always set number of active disks to 0 when a device is inactive.
* Add total disks calculation to unknown personalites.
Signed-off-by: Ben Kochie <superq@gmail.com>
* Fix for #945, cpu temperature is signed.
Added a type conversion to cpu temperature sysctl. Will still
collect/report -1 when the value is -1, this is because it should be up
to interpretation whether this is the correct value for the system or
not.
Some drivers will report -1 for cpu temperature. Other sensors will
report "an input into the fan control algorithm", i.e. not the actual
temperature, but how much fan it wants. Some people cool their machines
with liquid nitrogen.
Signed-off-by: Derek Marcotte <554b8425@razorfever.net>
* Do not rely on AArch64 CPUs to support 32-bit ARM for cross-testing.
Signed-off-by: Alexey Kopytov <akopytov@gmail.com>
* aarch64 like ppc64le reports 64k node_sockstat_TCP_mem_bytes due to 64k pages.
Signed-off-by: Alexey Kopytov <akopytov@gmail.com>
* cpu: Add a 2nd label 'package' to metric node_cpu_core_throttles_total
This commit fixes the node_cpu_core_throttles_total metrics on
multi-socket systems as the core_ids are the same for each package.
I.e. we need to count them seperately.
Rename the node_package_throttles_total metric label `node` to `package`.
Reorganize the sys.ttar archive and use the same symlinks as the Linux
kernel. Also, the new fixtures now use a dual-socket dual-core cpu w/o
HT/SMT (node0: cpu0+1, node1: cpu2+3) as well as processor-less
(memory-only) NUMA node 'node2' (this is a very rare case).
Signed-off-by: Karsten Weiss <knweiss@gmail.com>
* cpu: Use the direct /sys path to the cpu files.
Use the direct path /sys/devices/system/cpu/cpu[0-9]* (without symlinks)
instead of /sys/bus/cpu/devices/cpu[0-9]*.
The latter path also does not exist e.g. on RHEL 6.9's kernel.
Signed-off-by: Karsten Weiss <knweiss@gmail.com>
* cpu: Reverse core+package throttle processing order
Signed-off-by: Karsten Weiss <knweiss@gmail.com>
* cpu: Add documentation URLs
Signed-off-by: Karsten Weiss <knweiss@gmail.com>
Netstat is 40% of the metrics on my laptop, many of which
are highly detailed information about IP internals in the kernel.
~300 such metrics on every machine in your fleet is excessive,
so focus on key metrics by default, overridable by the user.
Fixes#515
Signed-off-by: Brian Brazil <brian.brazil@robustperception.io>
Vmstat has over 100 fields, most of which are highly
detailed debug information. Trim this down to only
essential fields by default, configurable by flag.
Signed-off-by: Brian Brazil <brian.brazil@robustperception.io>
* Only report core throttles per core, not per cpu
* Add topology/core_id to the cpu sysfs fixtures
* Add new cpu fixtures to ttar file
* Merge core_id reading and thermal throttle accounting
* Declare core_id
* updates for zfsonlinux 0.7.5
* add constants for KSTAT_DATA_* types
* added e2e test for negative values represented by uint64 that can result from ZFS bugs
Enable NFS client metrics by default now that it nolonger prints errors
on scrape if there are no metrics to display.
Also fixup the nfsd README to match the nfs entry.
All tools in OpenBSD base system use swpginuse instead of swpgonly
for reporting swap usage (snmpd, swapctl, top, vmstat), so let
memory collector use that as well for consistency.
* Add overlay to defIgnoredFSTypes
To avoid statfs() errors if node_exporter is running as non privileged user.
* Updated defIngoredFSTypes values in sorted order
* Update vendor github.com/prometheus/procfs/...
* Refactor NFS collector
Use new procfs library to parse NFS client stats.
* Ignore nfs proc file not existing.
* Refactor with reflection to walk the structs.
The node exporter runs unprivileged, so it cannot statfs any filesystems
under this directory causing log spam. In addition there tends to be
high churn in the filesystems here (as it's basically application
monitoring) which can cause high cardinaltiy and in one case caused
Prometheus's index symbol table to get very large.
Accordingly this should be ignored to reduce log spam and avoid
performance issues. The filesystems themselves can in principle be
monitored via container oriented exporters, and the underlying
filesystems will still be monitored.
* Unify CPU collector conventions
Add a common CPU metric description.
* All collectors use the same `nodeCpuSecondsDesc`.
* All collectors drop the `cpu` prefix for `cpu` label values.
* Fix subsystem string in cpu_freebsd.
* Fix Linux CPU freq label names.
