<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta http-equiv="content-type" content="text/html;charset=iso-8859-1"> <meta name="generator" content="HTML Tidy, see www.w3.org"> <title>Monitoring Options</title> <link href="scripts/style.css" type="text/css" rel="stylesheet"> </head> <body> <h3>Monitoring Commands and Options</h3> <img src="pic/pogo8.gif" alt="gif" align="left"><a href="http://www.eecis.udel.edu/~mills/pictures.html"></a> from <i>Pogo</i>, Walt Kelly</a> <p>Pig was hired to watch the logs.</p> <p>Last update: <!-- #BeginDate format:En2m -->14-Feb-2016 09:38<!-- #EndDate --> UTC</p> <br clear="left"> <h4>Related Links</h4> <script type="text/javascript" language="javascript" src="scripts/command.txt"></script> <script type="text/javascript" language="javascript" src="scripts/monopt.txt"></script> <h4>Table of Contents</h4> <ul> <li class="inline"><a href="#intro">Naming Conventions</a></li> <li class="inline"><a href="#cmd">Monitoring Commands and Options</a></li> <li class="inline"><a href="#types">File Set Types</a></li> </ul> <hr> <h4 id="intro">Naming Conventions</h4> <p>The <tt>ntpd</tt> includes a comprehensive monitoring facility which collects statistical data of various types and writes the data to files associated with each type at defined events or intervals. The files associated 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.</p> <p>File sets have names specific to the type and generation epoch. The names are constructed from three concatenated elements <i><tt>prefix</tt></i>, <i><tt>filename</tt></i> and <i><tt>suffix</tt></i>:</p> <dl> <dt><i><tt>prefix</tt></i></dt> <dd>The directory path specified in the <tt>statsdir</tt> command.</dd> <dt><i><tt>name</tt></i></dt> <dd>The name specified by the <tt>file</tt> option of the <tt>filegen</tt> command.</dd> <dt><i><tt>suffix</tt></i></dt> <dd>A string of elements bdginning with . (dot) followed by a number of elements depending on the file set type.</dd> </dl> <p>Statistics files can be managed using scripts, examples of which are in the <tt>./scripts</tt> directory. Using these or similar scripts and Unix <tt>cron</tt> jobs, the files can be automatically summarized and archived for retrospective analysis.</p> <h4 id="cmd">Monitoring Commands and Options</h4> <p>Unless noted otherwise, further information about these commands is on the <a href="decode.html">Event Messages and Status Codes</a> page.</p></a> page.</p><dl> <dt id="filegen"><tt>filegen <i>name</i> [file <i>filename</i>] [type <i>type</i>] [link | nolink] [enable | disable]</tt></dt> <dd> <dl> <dt><i><tt>name</tt></i></dt> <dd>Specifies the file set type from the list in the next section.</dd> <dt><tt>file <i>filename</i></tt></dt> <dd>Specifies the filename prefix. The default is the file set type, such as "loopstats".</dd> <dt><tt>type <i>typename</i></tt></dt> <dd>Specifies the file set interval. The following intervals are supported with default <tt>day</tt>:</dd> <dd> <dl> <dt><tt>none</tt></dt> <dd>The file set is actually a single plain file.</dd> <dt><tt>pid</tt></dt> <dd>One file set member is created for every incarnation of <tt>ntpd</tt>. The file name suffix is the string .<tt>n</tt>, where <tt>n</tt> is the process ID of the <tt>ntpd</tt> server process.</dd> <dt><tt>day</tt></dt> <dd>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 .<tt>yyyymmdd</tt>, where <tt>yyyy</tt> is the year, <tt>mm</tt> the month of the year and <tt>dd</tt> the day of the month. Thus, member created on 10 December 1992 would have suffix <tt>.19921210</tt>.</dd> <dt><tt>week</tt></dt> <dd>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 .<tt>yyyyWww</tt>, where <tt>yyyy</tt> is the year, <tt>W</tt> stands for itself and <tt>ww</tt> the week number starting from 0. For example, The member created on 10 January 1992 would have suffix <tt>.1992W1</tt>.</dd> <dt><tt>month</tt></dt> <dd>One file set member is created per month. The file name suffix is the string .<tt>yyyymm</tt>, where <tt>yyyy</tt> is the year and <tt>mm</tt> the month of the year starting from 1. For example, The member created on 10 January 1992 would have suffix <tt>.199201</tt>.</dd> <dt><tt>year</tt></dt> <dd>One file set member is generated per year. The file name suffix is the string .<tt>yyyy</tt>, where <tt>yyyy</tt> is the year. For example, The member created on 1 January 1992 would have suffix <tt>.1992</tt>.</dd> <dt><tt>age</tt></dt> <dd>One file set member is generated every 24 hours of <tt>ntpd</tt> operation. The filename suffix is the string <tt>.adddddddd</tt>, where <tt>a</tt> stands for itself and <tt>dddddddd</tt> is the <tt>ntpd</tt> running time in seconds at the start of the corresponding 24-hour period.</dd> </dl> </dd> <dt><tt>link | nolink</tt></dt> <dd>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 <tt>link</tt> and disabled by <tt>nolink</tt>. 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 <tt>C</tt>, and the pid of the <tt>ntpd</tt> 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.</dd> <dt><tt>enable | disable</tt></dt> <dd>Enable or disable the recording function, with default <tt>enable</tt>. These options are intended for remote configuration commands.</dd> </dl> </dd> <dt id="statistics"><tt>statistics <i>name</i>...</tt></dt> <dd>Enables writing of statistics records. Currently, eight kinds of statistics are supported: <i>name</i>s specify the file set type(s) from the list in the next section.</dd> <dt id="statsdir"><tt>statsdir <i>directory_path</i></tt></dt> <dd>Specify the directory path prefix for statistics file names.</dd> </dl> <h4 id="types">File Set Types</h4> <dl> <dt><tt>clockstats</tt></dt> <dd>Record reference clock statistics. Each update received from a reference clock driver appends one line to the <tt>clockstats</tt> file set:</dd> <dd><tt>49213 525.624 127.127.4.1 93 226 00:08:29.606 D</tt></dd> <dd> <table width="100%" border="1" cellspacing="2" cellpadding="2"> <tr> <td>Item</td> <td>Units</td> <td>Description</td> </tr> <tr> <td><tt>49213</tt></td> <td>MJD</td> <td>date</td> </tr> <tr> <td><tt>525.624</tt></td> <td>s</td> <td>time past midnight</td> </tr> <tr> <td><tt>127.127.4.1</tt></td> <td>IP</td> <td>reference clock address</td> </tr> <tr> <td><tt><i>message</i></tt></td> <td>text</td> <td>log message</td> </tr> </table> </dd> <dd>The <tt><i>message</i></tt> 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.</dd> <dt><tt>cryptostats</tt></dt> <dd>Record significant events in the Autokey protocol. This option requires the OpenSSL cryptographic software library. Each event appends one line to the <tt>cryptostats</tt> file set:</dd> <dd><tt>49213 525.624 128.4.1.1 <i>message</i></tt></dd> <dd> <table width="100%" border="1" cellspacing="2" cellpadding="2"> <tr> <td>Item</td> <td>Units</td> <td>Description</td> </tr> <tr> <td><tt>49213</tt></td> <td>MJD</td> <td>date</td> </tr> <tr> <td><tt>525.624</tt></td> <td>s</td> <td>time past midnight</td> </tr> <tr> <td><tt>128.4.1.1</tt></td> <td>IP</td> <td>source address (<tt>0.0.0.0</tt> for system)</td> </tr> <tr> <td><tt><i>message</i></tt></td> <td>text</td> <td>log message</td> </tr> </table> </dd> <dd>The <tt><i>message</i></tt> field includes the message type and certain ancillary information. See the <a href="authopt.html">Authentication Options</a> page for further information.</dd> <dt><tt>loopstats</tt></dt> <dd>Record clock discipline loop statistics. Each system clock update appends one line to the <tt>loopstats</tt> file set:</dd> <dd><tt>50935 75440.031 0.000006019 13.778 0.000351733 0.013380 6</tt></dd> <dd> <table width="100%" border="1" cellspacing="2" cellpadding="2"> <tr> <td>Item</td> <td>Units</td> <td>Description</td> </tr> <tr> <td><tt>50935</tt></td> <td>MJD</td> <td>date</td> </tr> <tr> <td><tt>75440.031</tt></td> <td>s</td> <td>time past midnight</td> </tr> <tr> <td><tt>0.000006019</tt></td> <td>s</td> <td>clock offset</td> </tr> <tr> <td><tt>13.778</tt></td> <td>PPM</td> <td>frequency offset</td> </tr> <tr> <td><tt>0.000351733</tt></td> <td>s</td> <td>RMS jitter</td> </tr> <tr> <td><tt>0.013380</tt></td> <td>PPM</td> <td>RMS frequency jitter (aka wander)</td> </tr> <tr> <td><tt>6 </tt></td> <td>log<sub>2</sub> s</td> <td>clock discipline loop time constant</td> </tr> </table> </dd> <dt><tt>peerstats</tt></dt> <dd>Record peer statistics. Each NTP packet or reference clock update received appends one line to the <tt>peerstats</tt> file set:</dd> <dd><tt>48773 10847.650 127.127.4.1 9714 -0.001605376 0.000000000 0.001424877 0.000958674</tt></dd> <dd> <table width="100%" border="1" cellspacing="2" cellpadding="2"> <tr> <td>Item</td> <td>Units</td> <td>Description</td> </tr> <tr> <td><tt>48773</tt></td> <td>MJD</td> <td>date</td> </tr> <tr> <td><tt>10847.650</tt></td> <td>s</td> <td>time past midnight</td> </tr> <tr> <td><tt>127.127.4.1</tt></td> <td>IP</td> <td>source address</td> </tr> <tr> <td><tt>9714</tt></td> <td>hex</td> <td>status word</td> </tr> <tr> <td><tt>-0.001605376</tt></td> <td>s</td> <td>clock offset</td> </tr> <tr> <td><tt>0.000000000 </tt></td> <td>s</td> <td>roundtrip delay</td> </tr> <tr> <td><tt>0.001424877</tt></td> <td>s</td> <td>dispersion</td> </tr> <tr> <td><tt>0.000958674</tt></td> <td>s</td> <td>RMS jitter</td> </tr> </table> </dd> <dd>The status field is encoded in hex format as described in Appendix B of the NTP specification RFC 1305.</dd> <dt><tt>protostats</tt></dt> <dd>Record significant peer, system and protocol events. Each significant event appends one line to the <tt>protostats</tt> file set:</dd> <dd><tt>49213 525.624 128.4.1.1 963a 8a <i>message</i></tt></dd> <dd> <table width="100%" border="1" cellspacing="2" cellpadding="2"> <tr> <td>Item</td> <td>Units</td> <td>Description</td> </tr> <tr> <td><tt>49213</tt></td> <td>MJD</td> <td>date</td> </tr> <tr> <td><tt>525.624</tt></td> <td>s</td> <td>time past midnight</td> </tr> <tr> <td><tt>128.4.1.1</tt></td> <td>IP</td> <td>source address (<tt>0.0.0.0</tt> for system)</td> </tr> <tr> <td><tt>963a</tt></td> <td>code</td> <td>status word</td> </tr> <tr> <td><tt>8a</tt></td> <td>code</td> <td>event message code</td> </tr> <tr> <td><tt><i>message</i></tt></td> <td>text</td> <td>event message</td> </tr> </table> </dd> <dd>The event message code and <tt><i>message</i></tt> field are described on the <a href="decode.html">Event Messages and Status Words</a> page.</dd> <dt><tt>rawstats</tt></dt> <dd>Record timestamp statistics. Each NTP packet received appends one line to the <tt>rawstats</tt> file set:</dd> <dd><tt>56285 54575.160 128.4.1.1 192.168.1.5 3565350574.400229473 3565350574.442385200 3565350574.442436000 3565350575.154505763 0 4 4 1 8 -21 0.000000 0.000320 .PPS.</tt></dd> <dd> <table width="100%" border="1" cellspacing="2" cellpadding="2"> <tr> <td>Item</td> <td>Units</td> <td>Description</td> </tr> <tr> <td><tt>56285</tt></td> <td>MJD</td> <td>date</td> </tr> <tr> <td><tt>54575.160</tt></td> <td>s</td> <td>time past midnight</td> </tr> <tr> <td><tt>128.4.1.1</tt></td> <td>IP</td> <td>source address</td> </tr> <tr> <td><tt>192.168.1.5</tt></td> <td>IP</td> <td>destination address</td> </tr> <tr> <td><tt>3565350574.400229473</tt></td> <td>NTP s</td> <td>origin timestamp</td> </tr> <tr> <td><tt>3565350574.442385200</tt></td> <td>NTP s</td> <td>receive timestamp</td> </tr> <tr> <td><tt>3565350574.442436000</tt></td> <td>NTP s</td> <td>transmit timestamp</td> </tr> <tr> <td><tt>3565350575.154505763</tt></td> <td>NTP s</td> <td>destination timestamp</td> </tr> <tr> <td><tt>0</tt></td> <td>0: OK, 1: insert pending,<br>2: delete pending, 3: not synced</td> <td>leap warning indicator</td> </tr> <tr> <td><tt>4</tt></td> <td>4 was current in 2012</td> <td>NTP version</td> </tr> <tr> <td><tt>4</tt></td> <td>3: client, 4: server, 5: broadcast</td> <td>mode</td> </tr> <tr> <td><tt>1</tt></td> <td>1-15, 16: not synced</td> <td>stratum</td> </tr> <tr> <td><tt>8</tt></td> <td>log<sub>2</sub> seconds</td> <td>poll</td> </tr> <tr> <td><tt>-21</tt></td> <td>log<sub>2</sub> seconds</td> <td>precision</td> </tr> <tr> <td><tt>0.000000</tt></td> <td>seconds</td> <td>total roundtrip delay to the primary reference clock</td> </tr> <tr> <td><tt>0.000320</tt></td> <td>seconds</td> <td>total dispersion to the primary reference clock</td> </tr> <tr> <td><tt>PPS.</tt></td> <td>IP or text</td> <td>refid, association ID</td> </tr> </table> </dd> <dt><tt>sysstats</tt></dt> <dd>Record system statistics. Each hour one line is appended to the <tt>sysstats</tt> file set in the following format:</dd> <dd><tt>50928 2132.543 3600 81965 0 9546 56 512 540 10 4 147 1</tt></dd> <dd> <table width="100%" border="1" cellspacing="2" cellpadding="2"> <tr> <td>Item</td> <td>Units</td> <td>Description</td> </tr> <tr> <td><tt>50928</tt></td> <td>MJD</td> <td>date</td> </tr> <tr> <td><tt>2132.543</tt></td> <td>s</td> <td>time past midnight</td> </tr> <tr> <td><tt>3600</tt></td> <td>s</td> <td>time since reset</td> </tr> <tr> <td><tt>81965</tt></td> <td>#</td> <td>packets received</td> </tr> <tr> <td><tt>0</tt></td> <td>#</td> <td>packets for this host</td> </tr> <tr> <td><tt>9546</tt></td> <td>#</td> <td>current versions</td> </tr> <tr> <td><tt>56</tt></td> <td>#</td> <td>old version</td> </tr> <tr> <td><tt>512</tt></td> <td>#</td> <td>access denied</td> </tr> <tr> <td><tt>540</tt></td> <td>#</td> <td>bad length or format</td> </tr> <tr> <td><tt>10</tt></td> <td>#</td> <td>bad authentication</td> </tr> <tr> <td><tt>4</tt></td> <td>#</td> <td>declined</td> </tr> <tr> <td><tt>147</tt></td> <td>#</td> <td>rate exceeded</td> </tr> <tr> <td><tt>1</tt></td> <td>#</td> <td>kiss-o'-death packets sent</td> </tr> </table> </dd> <dt><tt>timingstats</tt></dt> <dd>(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.</dd> <dd><tt>53876 36.920 10.0.3.5 1 0.000014592 input processing delay</tt></dd> <dd> <table width="100%" border="1" cellspacing="2" cellpadding="2"> <tr> <td>Item</td> <td>Units</td> <td>Description</td> </tr> <tr> <td><tt>53876</tt></td> <td>MJD</td> <td>date</td> </tr> <tr> <td><tt>36.920</tt></td> <td>s</td> <td>time past midnight</td> </tr> <tr> <td><tt>10.0.3.5</tt></td> <td>IP</td> <td>server address</td> </tr> <tr> <td><tt>1</tt></td> <td>#</td> <td>event count</td> </tr> <tr> <td><tt>0.000014592</tt></td> <td>s</td> <td>total time</td> </tr> <tr> <td><tt><i>message</i></tt></td> <td>text</td> <td>code path description (see source)</td> </tr> </table> </dd> </dl> <hr> <script type="text/javascript" language="javascript" src="scripts/footer.txt"></script> </body> </html>