Sami Kerola
3762191e66
Add timex collector ( #664 ) ...
This collector is based on adjtimex(2) system call. The collector returns
three values, status if time is synchronised, offset to remote reference,
and local clock frequency adjustment.
Values are taken from kernel time keeping data structures to avoid getting
involved how the synchronisation is implemented. By that I mean one should
not care if time is update using ntpd, systemd.timesyncd, ptpd, and so on.
Since all time sync implementation will always end up telling to kernel what
is the status with time one can simply omit the software in between, and
look results of the syncing. As a positive side effect this makes collector
very quick and conceptually specific, this does not monitor availability of
NTP server, or network in between, or dns resolution, and other unrelated
but necessary things.
Minimum set of values to keep eye on are the following three:
The node_timex_sync_status tells if local clock is in sync with a remote
clock. Value is set to zero when synchronisation to a reliable server
is lost, or a time sync software is misconfigured.
The node_timex_offset_seconds tells how much local clock is off when
compared to reference. In case of multiple time references this value
is outcome of RFC 5905 adjustment algorithm. Ideally offset should be
close to zero, and it depends about use case how large value is
acceptable. For example a typical web server is probably fine if offset
is about 0.1 or less, but that would not be good enough for mobile phone
base station operator.
The node_timex_freq tells amount of adjustment to local clock tick
frequency. For example if offset is one second and growing the local
clock will need instruction to tick quicker. Number value itself is not
very important, and occasional small adjustments are fine. When
frequency is unusually in stable one can assume quality of time stamps
will not be accurate to very far in sub second range. Obviously
explaining why local clock frequency behaves like a passenger in roller
coaster is different matter. Explanations can vary from system load, to
environmental issues such as a machine being physically too hot.
Rest of the measurements can help when debugging. If you run a clock server
do probably want to collect and keep track of everything.
Pull-request: https://github.com/prometheus/node_exporter/pull/664
2017-09-19 07:54:06 -07:00
cpu: Metric 'package_throttles_total' is per package. ( #657 )
2017-09-07 23:24:18 +02:00
Add ARP collector for Linux ( #540 )
2017-04-11 17:45:19 +02:00
Add bcache collector ( #597 )
2017-07-07 07:20:18 +02:00
Handle nonexisting bonding_masters file ( #569 )
2017-04-24 23:19:17 +04:00
Remove Windows support
2017-04-10 23:27:23 -03:00
Remove unnecessarily named return variables
2017-02-28 16:04:25 -04:00
Remove unnecessarily named return variables
2017-02-28 16:04:25 -04:00
cpu_darwin.go: s/cpu_ticks/cpuTicks/g
2017-05-14 13:51:42 +02:00
golint: Fix NewStatCollector() doc string.
2017-05-14 13:51:47 +02:00
golint: Fix NewStatCollector() doc string.
2017-05-14 13:51:47 +02:00
cpu: Metric 'package_throttles_total' is per package. ( #657 )
2017-09-07 23:24:18 +02:00
golint: Fix comment on exported function NewDevstatCollector.
2017-05-14 13:21:39 +02:00
Remove unused devstatCollector struct member 'bytes_total'.
2017-05-14 19:51:53 +02:00
add diskstats on Darwin ( #593 )
2017-07-06 13:51:24 +02:00
Switch to kingpin flags ( #639 )
2017-08-12 15:07:24 +02:00
Remove unnecessarily named return variables
2017-02-28 16:04:25 -04:00
edac: Fix typo in csrow label of node_edac_csrow_uncorrectable_errors_total metric.
2017-04-18 12:45:06 +02:00
Remove unnecessarily named return variables
2017-02-28 16:04:25 -04:00
Fix metric name per review.
2017-04-21 16:25:31 -04:00
Fix scanner usage without error handling
2017-02-28 16:04:25 -04:00
Fix scanner usage without error handling
2017-02-28 16:04:25 -04:00
Fix lint issues on filesystem BSD implementation
2017-03-22 21:48:12 -03:00
Switch to kingpin flags ( #639 )
2017-08-12 15:07:24 +02:00
Remove unnecessarily named return variables
2017-02-28 16:04:25 -04:00
Fix export of stale device error metrics for unmounted filesystems
2017-03-22 21:48:18 -03:00
Remove unnecessarily named return variables
2017-02-28 16:04:25 -04:00
Delete unused code
2017-02-28 17:20:16 -04:00
Remove more unnecessarily named return values
2017-02-28 17:33:46 -04:00
Multiply port data XMIT/RCV metrics by 4 ( #579 )
2017-05-12 07:28:53 +02:00
Fix scanner usage without error handling
2017-02-28 16:04:25 -04:00
Enable IPVS collector by default ( #623 )
2017-07-26 15:20:28 +02:00
Switch to kingpin flags ( #639 )
2017-08-12 15:07:24 +02:00
Remove unnecessarily named return variables
2017-02-28 16:04:25 -04:00
Fix build tags of loadavg collector
2017-07-20 15:13:58 -04:00
Fix build tags of loadavg collector
2017-07-20 15:13:58 -04:00
Fix build tags of loadavg collector
2017-07-20 15:13:58 -04:00
Explicitly check for the rc 3 in call to getloadavg(). Reorder logic.
2017-05-14 13:07:54 +02:00
Change raid0 status line regexp for mdadm collector ( #619 )
2017-07-20 17:04:33 +02:00
Change raid0 status line regexp for mdadm collector ( #619 )
2017-07-20 17:04:33 +02:00
Switch to kingpin flags ( #639 )
2017-08-12 15:07:24 +02:00
Switch to kingpin flags ( #639 )
2017-08-12 15:07:24 +02:00
Fix build tags of meminfo collector
2017-07-20 14:37:10 -04:00
Add exec_boot_time for freebsd, dragonfly
2017-04-21 10:23:19 -04:00
Fix scanner usage without error handling
2017-02-28 16:04:25 -04:00
Remove unnecessarily named return variables
2017-02-28 16:04:25 -04:00
Fix gofmt -s and spelling issues
2017-02-28 14:01:28 -04:00
Switch to kingpin flags ( #639 )
2017-08-12 15:07:24 +02:00
Remove unnecessary conversions
2017-02-28 13:57:49 -04:00
Simplify code
2017-02-28 13:54:27 -04:00
Add parsing /proc/net/snmp6 file for netstat-linux ( #615 )
2017-07-08 20:16:35 +02:00
Add parsing /proc/net/snmp6 file for netstat-linux ( #615 )
2017-07-08 20:16:35 +02:00
Remove unnecessarily named return variables
2017-02-28 16:04:25 -04:00
Add metrics from SNTPv4 packet to ntp collector & add ntpd sanity check ( #655 )
2017-09-19 10:36:14 +02:00
Switch to kingpin flags ( #639 )
2017-08-12 15:07:24 +02:00
Switch to kingpin flags ( #639 )
2017-08-12 15:07:24 +02:00
Switch to kingpin flags ( #639 )
2017-08-12 15:07:24 +02:00
Switch to kingpin flags ( #639 )
2017-08-12 15:07:24 +02:00
Remove unnecessarily named return variables
2017-02-28 16:04:25 -04:00
Add parsing /proc/net/snmp6 file for netstat-linux ( #615 )
2017-07-08 20:16:35 +02:00
Move stat_linux to cpu_linux and add cpufreq stats ( #548 )
2017-06-13 11:21:53 +02:00
Switch to kingpin flags ( #639 )
2017-08-12 15:07:24 +02:00
sysctl_bsd.go: golint fixes. Typo fix.
2017-05-14 12:51:57 +02:00
Switch to kingpin flags ( #639 )
2017-08-12 15:07:24 +02:00
Fix gofmt -s and spelling issues
2017-02-28 14:01:28 -04:00
Fix NewTCPStatCollector doc string.
2017-05-14 13:23:57 +02:00
Switch to kingpin flags ( #639 )
2017-08-12 15:07:24 +02:00
Switch to kingpin flags ( #639 )
2017-08-12 15:07:24 +02:00
Get full resolution for node_time ( #555 )
2017-04-19 18:31:21 +01:00
Add timex collector ( #664 )
2017-09-19 07:54:06 -07:00
uname_linux: Build for 32bit MIPS too
2017-04-20 13:30:40 +02:00
Remove unnecessarily named return variables
2017-02-28 16:04:25 -04:00
Ignore wifi collector permission errors ( #646 )
2017-08-18 10:19:48 +02:00
Add XFS block mapping and block map B-tree stats ( #575 )
2017-07-07 07:27:52 +02:00
Use int64 throughout the ZFS collector.
2017-08-21 16:40:16 +00:00
Use int64 throughout the ZFS collector.
2017-08-21 16:40:16 +00:00
Use int64 throughout the ZFS collector.
2017-08-21 16:40:16 +00:00
3762191e66