ntp_mon(5) File Formats Manual ntp_mon(5)
NAME
ntp_mon - Monitoring Options
INTRODUCTION
The ntpd includes a comprehensive monitoring facility which collects
statistical data of various types and writes the data to files associ-
ated with each type at defined events or intervals. The files associ-
ated with a particular type are collectively called the generation file
set for that type. The files in the file set are the members of that
set.
File sets have names specific to the type and generation epoch. The
names are constructed from three concatenated elements prefix, filename
and suffix:
prefix The directory path specified in the statsdir command.
name The name specified by the file option of the filegen command.
suffix A string of elements bdginning with . (dot) followed by a num-
ber of elements depending on the file set type.
Statistics files can be managed using scripts, examples of which are in
the ./scripts directory. Using these or similar scripts and Unix cron
jobs, the files can be automatically summarized and archived for retro-
spective analysis.
MONITORING COMMANDS
filegen name file filename [type type] [link | nolink] [enable | dis-
able]
name Specifies the file set type from the list in the next
section.
file filename
Specfies the file set name.
type typename
Specifies the file set interval. The following inter-
vals are supported with default day:
none The file set is actually a single plain file.
pid One file set member is created for every incar-
nation of ntpd. The file name suffix is the
string .n, where n is the process ID of the
ntpd server process.
day One file set member is created per day. A day
is defined as the period between 00:00 and
23:59 UTC. The file name suffix is the string
.yyyymmdd, where yyyy is the year, mm the month
of the year and dd the day of the month. Thus,
member created on 10 December 1992 would have
suffix .19921210.
week One file set member is created per week. The
week is defined as the day of year modulo 7.
The file name suffix is the string .yyyyWww,
where yyyy is the year, W stands for itself and
ww the week number starting from 0. For exam-
ple, The member created on 10 January 1992
would have suffix .1992W1.
month One file set member is created per month. The
file name suffix is the string .yyyymm, where
yyyy is the year and mm the month of the year
starting from 1. For example, The member cre-
ated on 10 January 1992 would have suffix
.199201.
year One file set member is generated per year. The
file name suffix is the string .yyyy, where
yyyy is the year. For example, The member cre-
ated on 1 January 1992 would have suffix .1992.
age One file set member is generated every 24 hours
of ntpd operation. The filename suffix is the
string .adddddddd, where a stands for itself
and dddddddd is the ntpd running time in sec-
onds at the start of the corresponding 24-hour
period.
link | nolink
It is convenient to be able to access the current file
set members by file name, but without the suffix. This
feature is enabled by link and disabled by nolink. If
enabled, which is the default, a hard link from the
current file set member to a file without suffix is
created. When there is already a file with this name
and the number of links to this file is one, it is
renamed by appending a dot, the letter C, and the pid
of the ntpd server process. When the number of links is
greater than one, the file is unlinked. This allows the
current file to be accessed by a constant name.
enable | disable
Enable or disable the recording function, with default
enable. These options are intended for remote con-
figutation commands.
statsdir directory_path
Specify the directory path prefix for statistics file names.
FILE SET TYPES
clockstats
Record reference clock statistics. Each update received from a
reference clock driver appends one line to the clockstats file
set: 49213 525.624 127.127.4.1 93 226 00:08:29.606 D
+-----------------+--------------+-----------------------------+
| Item | Units | Description |
+-----------------+--------------+-----------------------------+
| 49213 | MJD | date |
+-----------------+--------------+-----------------------------+
| 525.624 | s | time past midnight |
+-----------------+--------------+-----------------------------+
| 127.127.4.1 | IP | reference clock address |
+-----------------+--------------+-----------------------------+
| message | text | log message |
+-----------------+--------------+-----------------------------+
The message field includes the last timecode received in
decoded ASCII format, where meaningful. In some cases a good
deal of additional information is displayed. See information
specific to each reference clock for further details.
cryptostats
Record significant events in the Autokey protocol. This option
requires the OpenSSL cryptographic software library. Each event
appends one line to the cryptostats file set: 49213 525.624
128.4.1.1 message
+------------+----------+--------------------------------------+
|Item | Units | Description |
+------------+----------+--------------------------------------+
|49213 | MJD | date |
+------------+----------+--------------------------------------+
|525.624 | s | time past midnight |
+------------+----------+--------------------------------------+
|128.4.1.1 | IP | source address (0.0.0.0 for system) |
+------------+----------+--------------------------------------+
|message | text | log message |
+------------+----------+--------------------------------------+
The message field includes the message type and certain ancil-
lary information. See the Authentication Options page for fur-
ther information.
loopstats
Record clock discipline loop statistics. Each system clock
update appends one line to the loopstats file set: 50935
75440.031 0.000006019 13.778 0.000351733 0.013380 6
+-------------+----------+-------------------------------------+
|Item | Units | Description |
+-------------+----------+-------------------------------------+
|50935 | MJD | date |
+-------------+----------+-------------------------------------+
|75440.031 | s | time past midnight |
+-------------+----------+-------------------------------------+
|0.000006019 | s | clock offset |
+-------------+----------+-------------------------------------+
|13.778 | PPM | frequency offset |
+-------------+----------+-------------------------------------+
|0.000351733 | s | RMS jitter |
+-------------+----------+-------------------------------------+
|0.013380 | PPM | RMS frequency jitter (aka wander) |
+-------------+----------+-------------------------------------+
|6 | log2 s | clock discipline loop time constant |
+-------------+----------+-------------------------------------+
peerstats
Record peer statistics. Each NTP packet or reference clock
update received appends one line to the peerstats file set:
48773 10847.650 127.127.4.1 9714 -0.001605376 0.000000000
0.001424877 0.000958674
+-------------------+---------------+--------------------------+
| Item | Units | Description |
+-------------------+---------------+--------------------------+
| 48773 | MJD | date |
+-------------------+---------------+--------------------------+
| 10847.650 | s | time past midnight |
+-------------------+---------------+--------------------------+
| 127.127.4.1 | IP | source address |
+-------------------+---------------+--------------------------+
| 9714 | hex | status word |
+-------------------+---------------+--------------------------+
| -0.001605376 | s | clock offset |
+-------------------+---------------+--------------------------+
| 0.000000000 | s | roundtrip delay |
+-------------------+---------------+--------------------------+
| 0.001424877 | s | dispersion |
+-------------------+---------------+--------------------------+
| 0.000958674 | s | RMS jitter |
+-------------------+---------------+--------------------------+
The status field is encoded in hex format as described in Ap-
pendix B of the NTP specification RFC 1305.
protostats
Record significant peer, system and [rptpcp; events. Each sig-
nificant event appends one line to the protostats file set:
49213 525.624 128.4.1.1 963a 8a message
+------------+----------+--------------------------------------+
|Item | Units | Description |
+------------+----------+--------------------------------------+
|49213 | MJD | date |
+------------+----------+--------------------------------------+
|525.624 | s | time past midnight |
+------------+----------+--------------------------------------+
|128.4.1.1 | IP | source address (0.0.0.0 for system) |
+------------+----------+--------------------------------------+
|963a | code | status word |
+------------+----------+--------------------------------------+
|8a | code | event message code |
+------------+----------+--------------------------------------+
|message | text | event message |
+------------+----------+--------------------------------------+
The event message code and message field are described on the
Event Messages and Status Words page.
rawstats
Record timestamp statistics. Each NTP packet received appends
one line to the rawstats file set: 50928 2132.543 128.4.1.1
128.4.1.20 3102453281.584327000 3102453281.58622800031
02453332.540806000 3102453332.541458000
+-------------------------+----------+-------------------------+
|Item | Units | Description |
+-------------------------+----------+-------------------------+
|50928 | MJD | date |
+-------------------------+----------+-------------------------+
|2132.543 | s | time past midnight |
+-------------------------+----------+-------------------------+
|128.4.1.1 | IP | source address |
+-------------------------+----------+-------------------------+
|128.4.1.20 | IP | destination address |
+-------------------------+----------+-------------------------+
|3102453281.584327000 | NTP s | origin timestamp |
+-------------------------+----------+-------------------------+
|3102453281.586228000 | NTP s | receive timestamp |
+-------------------------+----------+-------------------------+
|3102453332.540806000 | NTP s | transmit timestamp |
+-------------------------+----------+-------------------------+
|3102453332.541458000 | NTP s | destination timestamp |
+-------------------------+----------+-------------------------+
sysstats
Record system statistics. Each hour one line is appended to the
sysstats file set in the following format: 50928 2132.543 3600
81965 0 9546 56 512 540 10 4 147 1
+--------------+--------------+--------------------------------+
| Item | Units | Description |
+--------------+--------------+--------------------------------+
| 50928 | MJD | date |
+--------------+--------------+--------------------------------+
| 2132.543 | s | time past midnight |
+--------------+--------------+--------------------------------+
| 3600 | s | time since reset |
+--------------+--------------+--------------------------------+
| 81965 | # | packets received |
+--------------+--------------+--------------------------------+
| 0 | # | packets for this host |
+--------------+--------------+--------------------------------+
| 9546 | # | current versions |
+--------------+--------------+--------------------------------+
| 56 | # | old version |
+--------------+--------------+--------------------------------+
| 512 | # | access denied |
+--------------+--------------+--------------------------------+
| 540 | # | bad length or format |
+--------------+--------------+--------------------------------+
| 10 | # | bad authentication |
+--------------+--------------+--------------------------------+
| 4 | # | declined |
+--------------+--------------+--------------------------------+
| 147 | # | rate exceeded |
+--------------+--------------+--------------------------------+
| 1 | # | kiss-o'-death packets sent |
+--------------+--------------+--------------------------------+
timingstats
(Only available when the deamon is compiled with process time
debugging support (--enable-debug-timing - costs performance).
Record processing time statistics for various selected code
paths. 53876 36.920 10.0.3.5 1 0.000014592 input processing
delay
+--------------+---------+-------------------------------------+
|Item | Units | Description |
+--------------+---------+-------------------------------------+
|53876 | MJD | date |
+--------------+---------+-------------------------------------+
|36.920 | s | time past midnight |
+--------------+---------+-------------------------------------+
|10.0.3.5 | IP | server address |
+--------------+---------+-------------------------------------+
|1 | # | event count |
+--------------+---------+-------------------------------------+
|0.000014592 | s | total time |
+--------------+---------+-------------------------------------+
|message | text | code path description (see source) |
+--------------+---------+-------------------------------------+
SEE ALSO
ntp.conf(5), ntp_decode(5)
The official HTML documentation.
This file was automatically generated from HTML source.
ntp_mon(5)
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