diff options
Diffstat (limited to '')
| -rw-r--r-- | docs/manual/programs/rotatelogs.html.en | 321 |
1 files changed, 321 insertions, 0 deletions
diff --git a/docs/manual/programs/rotatelogs.html.en b/docs/manual/programs/rotatelogs.html.en new file mode 100644 index 0000000..e768ae8 --- /dev/null +++ b/docs/manual/programs/rotatelogs.html.en @@ -0,0 +1,321 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> +<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head> +<meta content="text/html; charset=UTF-8" http-equiv="Content-Type" /> +<!-- + XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX + This file is generated from xml source: DO NOT EDIT + XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX + --> +<title>rotatelogs - Piped logging program to rotate Apache logs - Apache HTTP Server Version 2.4</title> +<link href="../style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" /> +<link href="../style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" /> +<link href="../style/css/manual-print.css" rel="stylesheet" media="print" type="text/css" /><link rel="stylesheet" type="text/css" href="../style/css/prettify.css" /> +<script src="../style/scripts/prettify.min.js" type="text/javascript"> +</script> + +<link href="../images/favicon.ico" rel="shortcut icon" /></head> +<body id="manual-page"><div id="page-header"> +<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="http://wiki.apache.org/httpd/FAQ">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p> +<p class="apache">Apache HTTP Server Version 2.4</p> +<img alt="" src="../images/feather.png" /></div> +<div class="up"><a href="./"><img title="<-" alt="<-" src="../images/left.gif" /></a></div> +<div id="path"> +<a href="http://www.apache.org/">Apache</a> > <a href="http://httpd.apache.org/">HTTP Server</a> > <a href="http://httpd.apache.org/docs/">Documentation</a> > <a href="../">Version 2.4</a> > <a href="./">Programs</a></div><div id="page-content"><div id="preamble"><h1>rotatelogs - Piped logging program to rotate Apache logs</h1> +<div class="toplang"> +<p><span>Available Languages: </span><a href="../en/programs/rotatelogs.html" title="English"> en </a> | +<a href="../fr/programs/rotatelogs.html" hreflang="fr" rel="alternate" title="Français"> fr </a> | +<a href="../ko/programs/rotatelogs.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> | +<a href="../tr/programs/rotatelogs.html" hreflang="tr" rel="alternate" title="Türkçe"> tr </a></p> +</div> + + <p><code>rotatelogs</code> is a simple program for use in + conjunction with Apache's piped logfile feature. It supports + rotation based on a time interval or maximum size of the log.</p> +</div> +<div id="quickview"><a href="https://www.apache.org/foundation/contributing.html" class="badge"><img src="https://www.apache.org/images/SupportApache-small.png" alt="Support Apache!" /></a><ul id="toc"><li><img alt="" src="../images/down.gif" /> <a href="#synopsis">Synopsis</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#options">Options</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#examples">Examples</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#portability">Portability</a></li> +</ul><h3>See also</h3><ul class="seealso"><li><a href="#comments_section">Comments</a></li></ul></div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="section"> +<h2><a name="synopsis" id="synopsis">Synopsis</a></h2> + + <p><code><strong>rotatelogs</strong> + [ -<strong>l</strong> ] + [ -<strong>L</strong> <var>linkname</var> ] + [ -<strong>p</strong> <var>program</var> ] + [ -<strong>f</strong> ] + [ -<strong>D</strong> ] + [ -<strong>t</strong> ] + [ -<strong>v</strong> ] + [ -<strong>e</strong> ] + [ -<strong>c</strong> ] + [ -<strong>n</strong> <var>number-of-files</var> ] + <var>logfile</var> + <var>rotationtime</var>|<var>filesize</var>(B|K|M|G) + [ <var>offset</var> ]</code></p> +</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="section"> +<h2><a name="options" id="options">Options</a></h2> + +<dl> + +<dt><code>-l</code></dt> +<dd>Causes the use of local time rather than GMT as the base for the +interval or for <code>strftime(3)</code> formatting with size-based +rotation.</dd> + +<dt><code>-L</code> <var>linkname</var></dt> +<dd><p>Causes a hard link to be made from the current logfile +to the specified link name. This can be used to watch +the log continuously across rotations using a command like +<code>tail -F linkname</code>.</p> +<p>If the linkname is not an absolute +path, it is relative to <code>rotatelogs</code>' working directory, +which is the <code class="directive"><a href="../mod/core.html#serverroot">ServerRoot</a></code> when +<code>rotatelogs</code> is run by the server. +</p> +</dd> + +<dt><code>-p</code> <var>program</var></dt> + +<dd>If given, <code>rotatelogs</code> will execute the specified +program every time a new log file is opened. The filename of the +newly opened file is passed as the first argument to the program. If +executing after a rotation, the old log file is passed as the second +argument. <code>rotatelogs</code> does not wait for the specified +program to terminate before continuing to operate, and will not log +any error code returned on termination. The spawned program uses the +same stdin, stdout, and stderr as rotatelogs itself, and also inherits +the environment.</dd> + +<dt><code>-f</code></dt> +<dd>Causes the logfile to be opened immediately, as soon as +<code>rotatelogs</code> starts, instead of waiting for the +first logfile entry to be read (for non-busy sites, there may be +a substantial delay between when the server is started +and when the first request is handled, meaning that the +associated logfile does not "exist" until then, which +causes problems from some automated logging tools)</dd> + +<dt><code>-D</code></dt> +<dd>Creates the parent directories of the path that the log file will be +placed in if they do not already exist. This allows <code>strftime(3)</code> +formatting to be used in the path and not just the filename.</dd> + +<dt><code>-t</code></dt> +<dd>Causes the logfile to be truncated instead of rotated. This is +useful when a log is processed in real time by a command like tail, +and there is no need for archived data. No suffix will be added to +the filename, however format strings containing '%' characters +will be respected. +</dd> + +<dt><code>-T</code></dt> +<dd>Causes all but the initial logfile to be truncated when opened. +This is useful when the format string contains something that will +loop around, such as the day of the month. Available in 2.4.56 and later. +</dd> + + +<dt><code>-v</code></dt> +<dd>Produce verbose output on STDERR. The output contains +the result of the configuration parsing, and all file open and +close actions.</dd> + +<dt><code>-e</code></dt> +<dd>Echo logs through to stdout. Useful when logs need to be further +processed in real time by a further tool in the chain.</dd> + +<dt><code>-c</code></dt> +<dd>Create log file for each interval, even if empty.</dd> + +<dt><code>-n <var>number-of-files</var></code></dt> +<dd>Use a circular list of filenames without timestamps. This option overwrites +log files at startup and during rotation. With -n 3, the series of log +files opened would be "logfile", "logfile.1", "logfile.2", then overwriting +"logfile". +<br /> +When this program first opens "logfile", the file will only be truncated if <code>-t</code> is also provided. Every subsequent rotation will +always begin with truncation of the target file. For size based rotation without <code>-t</code> and existing log files in place, +this option may result in unintuitive behavior such as initial log entries being sent to "logfile.1", and entries in "logfile.1" not being preserved +even if later "logfile.n" have not yet been used. +<br /> +Available in 2.4.5 and later.</dd> + +<dt><code><var>logfile</var></code></dt> + +<dd><p>The path plus basename of the logfile. If <var>logfile</var> +includes any '%' characters, it is treated as a format string for +<code>strftime(3)</code>. Otherwise, the suffix +<var>.nnnnnnnnnn</var> is automatically added and is the time in +seconds (unless the -t option is used). Both formats compute the +start time from the beginning of the current period. For example, +if a rotation time of 86400 is specified, the hour, minute, and +second fields created from the <code>strftime(3)</code> format will +all be zero, referring to the beginning of the current 24-hour +period (midnight).</p> +<p>When using <code>strftime(3)</code> filename formatting, +be sure the log file format has enough granularity to produce +a different file name each time the logs are rotated. Otherwise +rotation will overwrite the same file instead of starting a new +one. For example, if <var>logfile</var> was +<code>/var/log/errorlog.%Y-%m-%d</code> with log rotation at 5 +megabytes, but 5 megabytes was reached twice in the same day, the +same log file name would be produced and log rotation would keep +writing to the same file.</p> +<p>If the logfile is not an absolute +path, it is relative to <code>rotatelogs</code>' working directory, +which is the <code class="directive"><a href="../mod/core.html#serverroot">ServerRoot</a></code> when +<code>rotatelogs</code> is run by the server. +</p> +</dd> + +<dt><code><var>rotationtime</var></code></dt> + +<dd>The time between log file rotations in seconds. The rotation +occurs at the beginning of this interval. For example, if the +rotation time is 3600, the log file will be rotated at the beginning +of every hour; if the rotation time is 86400, the log file will be +rotated every night at midnight. (If no data is logged during an +interval, no file will be created.)</dd> + +<dt><code><var>filesize</var>(B|K|M|G)</code></dt> + +<dd>The maximum file size in followed by exactly one of the letters +<code>B</code> (Bytes), <code>K</code> (KBytes), <code>M</code> (MBytes) +or <code>G</code> (GBytes). +<p> +When time and size are specified, the size must be given after the time. +Rotation will occur whenever either time or size limits are reached. +</p> +</dd> + +<dt><code><var>offset</var></code></dt> + +<dd>The number of minutes offset from UTC. If omitted, zero is +assumed and UTC is used. For example, to use local time in the zone +UTC -5 hours, specify a value of <code>-300</code> for this argument. +In most cases, <code>-l</code> should be used instead of specifying +an offset.</dd> + +</dl> +</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="section"> +<h2><a name="examples" id="examples">Examples</a></h2> + +<div class="example"><pre class="prettyprint lang-config">CustomLog "|bin/rotatelogs /var/log/logfile 86400" common</pre> +</div> + + <p>This creates the files /var/log/logfile.nnnn where nnnn is + the system time at which the log nominally starts (this time + will always be a multiple of the rotation time, so you can + synchronize cron scripts with it). At the end of each rotation + time (here after 24 hours) a new log is started.</p> + +<div class="example"><pre class="prettyprint lang-config">CustomLog "|bin/rotatelogs -l /var/log/logfile.%Y.%m.%d 86400" common</pre> +</div> + + <p>This creates the files /var/log/logfile.yyyy.mm.dd where + yyyy is the year, mm is the month, and dd is the day of the month. + Logging will switch to a new file every day at midnight, local time.</p> + +<div class="example"><pre class="prettyprint lang-config">CustomLog "|bin/rotatelogs /var/log/logfile 5M" common</pre> +</div> + + <p>This configuration will rotate the logfile whenever it reaches + a size of 5 megabytes.</p> + +<div class="example"><pre class="prettyprint lang-config">ErrorLog "|bin/rotatelogs /var/log/errorlog.%Y-%m-%d-%H_%M_%S 5M"</pre> +</div> + <p>This configuration will rotate the error logfile whenever it + reaches a size of 5 megabytes, and the suffix to the logfile name + will be created of the form + <code>errorlog.YYYY-mm-dd-HH_MM_SS</code>.</p> + +<div class="example"><pre class="prettyprint lang-config">CustomLog "|bin/rotatelogs -t /var/log/logfile 86400" common</pre> +</div> + + <p>This creates the file <code>/var/log/logfile</code>, truncating the file at + startup and then truncating the file once per day. It is expected + in this scenario that a separate process (such as tail) would + process the file in real time.</p> + +<div class="example"><pre class="prettyprint lang-config">CustomLog "|bin/rotatelogs -T /var/log/logfile.%d 86400" common</pre> +</div> + +<p>If the server is started (or restarted) on the first of the month, this +appends to <code>/var/log/logfile.01</code>. When a log entry is written on the +second of the month, <code>/var/log/logfile.02</code> is truncated and new entries +will be added to the top. This example keeps approximately 1 months worth of +logs without external maintenance.</p> + +</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="section"> +<h2><a name="portability" id="portability">Portability</a></h2> + +<p>The following logfile format string substitutions should be +supported by all <code>strftime(3)</code> implementations, see +the <code>strftime(3)</code> man page for library-specific +extensions.</p> + +<table class="bordered"><tr><td><code>%A</code></td><td>full weekday name (localized)</td></tr> +<tr class="odd"><td><code>%a</code></td><td>3-character weekday name (localized)</td></tr> +<tr><td><code>%B</code></td><td>full month name (localized)</td></tr> +<tr class="odd"><td><code>%b</code></td><td>3-character month name (localized)</td></tr> +<tr><td><code>%c</code></td><td>date and time (localized)</td></tr> +<tr class="odd"><td><code>%d</code></td><td>2-digit day of month</td></tr> +<tr><td><code>%H</code></td><td>2-digit hour (24 hour clock)</td></tr> +<tr class="odd"><td><code>%I</code></td><td>2-digit hour (12 hour clock)</td></tr> +<tr><td><code>%j</code></td><td>3-digit day of year</td></tr> +<tr class="odd"><td><code>%M</code></td><td>2-digit minute</td></tr> +<tr><td><code>%m</code></td><td>2-digit month</td></tr> +<tr class="odd"><td><code>%p</code></td><td>am/pm of 12 hour clock (localized)</td></tr> +<tr><td><code>%S</code></td><td>2-digit second</td></tr> +<tr class="odd"><td><code>%U</code></td><td>2-digit week of year +(Sunday first day of week)</td></tr> +<tr><td><code>%W</code></td><td>2-digit week of year +(Monday first day of week)</td></tr> +<tr class="odd"><td><code>%w</code></td><td>1-digit weekday +(Sunday first day of week)</td></tr> +<tr><td><code>%X</code></td><td>time (localized)</td></tr> +<tr class="odd"><td><code>%x</code></td><td>date (localized)</td></tr> +<tr><td><code>%Y</code></td><td>4-digit year</td></tr> +<tr class="odd"><td><code>%y</code></td><td>2-digit year</td></tr> +<tr><td><code>%Z</code></td><td>time zone name</td></tr> +<tr class="odd"><td><code>%%</code></td><td>literal `%'</td></tr> +</table> + +</div></div> +<div class="bottomlang"> +<p><span>Available Languages: </span><a href="../en/programs/rotatelogs.html" title="English"> en </a> | +<a href="../fr/programs/rotatelogs.html" hreflang="fr" rel="alternate" title="Français"> fr </a> | +<a href="../ko/programs/rotatelogs.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> | +<a href="../tr/programs/rotatelogs.html" hreflang="tr" rel="alternate" title="Türkçe"> tr </a></p> +</div><div class="top"><a href="#page-header"><img src="../images/up.gif" alt="top" /></a></div><div class="section"><h2><a id="comments_section" name="comments_section">Comments</a></h2><div class="warning"><strong>Notice:</strong><br />This is not a Q&A section. Comments placed here should be pointed towards suggestions on improving the documentation or server, and may be removed by our moderators if they are either implemented or considered invalid/off-topic. Questions on how to manage the Apache HTTP Server should be directed at either our IRC channel, #httpd, on Libera.chat, or sent to our <a href="https://httpd.apache.org/lists.html">mailing lists</a>.</div> +<script type="text/javascript"><!--//--><![CDATA[//><!-- +var comments_shortname = 'httpd'; +var comments_identifier = 'http://httpd.apache.org/docs/2.4/programs/rotatelogs.html'; +(function(w, d) { + if (w.location.hostname.toLowerCase() == "httpd.apache.org") { + d.write('<div id="comments_thread"><\/div>'); + var s = d.createElement('script'); + s.type = 'text/javascript'; + s.async = true; + s.src = 'https://comments.apache.org/show_comments.lua?site=' + comments_shortname + '&page=' + comments_identifier; + (d.getElementsByTagName('head')[0] || d.getElementsByTagName('body')[0]).appendChild(s); + } + else { + d.write('<div id="comments_thread">Comments are disabled for this page at the moment.<\/div>'); + } +})(window, document); +//--><!]]></script></div><div id="footer"> +<p class="apache">Copyright 2023 The Apache Software Foundation.<br />Licensed under the <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>.</p> +<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="http://wiki.apache.org/httpd/FAQ">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p></div><script type="text/javascript"><!--//--><![CDATA[//><!-- +if (typeof(prettyPrint) !== 'undefined') { + prettyPrint(); +} +//--><!]]></script> +</body></html>
\ No newline at end of file |