except that the list of requests currently being served is omitted.
.TP
.BI graceful
-Gracefully restarts the Apache daemon by sending it a SIGWINCH. If
+Gracefully restarts the Apache daemon by sending it a SIGUSR1. If
the daemon is not running, it is started. This differs from a
normal restart in that currently open connections are not aborted.
A side effect is that old log files will not be closed immediately.
This command automatically checks the configuration files via
.BI configtest
before initiating the restart to make sure Apache doesn't die.
+On certain platforms that do not allow SIGUSR1 to be used for a graceful
+restart, an alternative signal may be used (such as SIGWINCH). graceful
+will send the right signal for your platform.
.TP
.BI configtest
Run a configuration file syntax test. It parses the configuration
requests currently being served is omitted.
<strong>graceful </strong>Gracefully restarts the Apache daemon by sending
- it a SIGWINCH. If the daemon is not running, it
+ it a SIGUSR1. If the daemon is not running, it
is started. This differs from a normal restart
in that currently open connections are not
aborted. A side effect is that old log files
log files are closed before processing them.
This command automatically checks the configura-
tion files via <strong>configtest </strong>before initiating the
- restart to make sure Apache doesn't die.
+ restart to make sure Apache doesn't die. <i>On
+ certain platforms that do not allow USR1 to be
+ used for a graceful restart, an alternative
+ signal may be used (such as WINCH). apachectl
+ graceful will send the right signal for your
+ platform.</i>
<strong>configtest </strong>Run a configuration file syntax test. It parses
the configuration files and either reports <strong>Syn-</strong>
<H3>Graceful Restart</H3>
-<p><strong>Signal:</strong> WINCH<br>
+<p><strong>Signal:</strong> USR1<br>
<code>apachectl graceful</code></p>
-<P>The <CODE>WINCH</CODE> signal causes the parent process to <EM>advise</EM>
+<P>The <CODE>USR1</CODE> signal causes the parent process to <EM>advise</EM>
the children to exit after their current request (or to exit immediately
if they're not serving anything). The parent re-reads its configuration
files and re-opens its log files. As each child dies off the parent
replaces it with a child from the new <EM>generation</EM> of the
configuration, which begins serving new requests immediately.</p>
+<I>On certain platforms that do not allow USR1 to be used for a graceful
+restart, an alternative signal may be used (such as WINCH). apachectl
+graceful will send the right signal for your platform.</I>
+
<P>This code is designed to always respect the <A
HREF="mod/mpm_common.html#maxclients">MaxClients</A>, <A
HREF="mod/prefork.html#minspareservers">MinSpareServers</A>, and <A
restart was given.
<P>At present there is no way for a log rotation script using
-<CODE>WINCH</CODE> to know for certain that all children writing the
+<CODE>USR1</CODE> to know for certain that all children writing the
pre-restart log have finished. We suggest that you use a suitable delay
-after sending the <CODE>WINCH</CODE> signal before you do anything with the
+after sending the <CODE>USR1</CODE> signal before you do anything with the
old log. For example if most of your hits take less than 10 minutes to
complete for users on low bandwidth links then you could wait 15 minutes
before doing anything with the old log.
<H3>Graceful Restart</H3>
-<p><strong>Signal:</strong> WINCH<br>
+<p><strong>Signal:</strong> USR1<br>
<code>apachectl graceful</code></p>
-<P>The <CODE>WINCH</CODE> signal causes the parent process to <EM>advise</EM>
+<P>The <CODE>USR1</CODE> signal causes the parent process to <EM>advise</EM>
the children to exit after their current request (or to exit immediately
if they're not serving anything). The parent re-reads its configuration
files and re-opens its log files. As each child dies off the parent
replaces it with a child from the new <EM>generation</EM> of the
configuration, which begins serving new requests immediately.</p>
+<I>On certain platforms that do not allow USR1 to be used for a graceful
+restart, an alternative signal may be used (such as WINCH). apachectl
+graceful will send the right signal for your platform.</I>
+
<P>This code is designed to always respect the <A
HREF="mod/mpm_common.html#maxclients">MaxClients</A>, <A
HREF="mod/prefork.html#minspareservers">MinSpareServers</A>, and <A
restart was given.
<P>At present there is no way for a log rotation script using
-<CODE>WINCH</CODE> to know for certain that all children writing the
+<CODE>USR1</CODE> to know for certain that all children writing the
pre-restart log have finished. We suggest that you use a suitable delay
-after sending the <CODE>WINCH</CODE> signal before you do anything with the
+after sending the <CODE>USR1</CODE> signal before you do anything with the
old log. For example if most of your hits take less than 10 minutes to
complete for users on low bandwidth links then you could wait 15 minutes
before doing anything with the old log.
<UL>
-<li>Graceful restarts of the server are now executed by signaling the
-parent process with <code>WINCH</code> rather than
-<code>USR1</code>.</li>
-
<li>The <code>httpd</code> command line option <code>-S</code>
which was used for printing the virtual host configuration has
been replaced by <code>-t -D DUMP_VHOSTS</code>.</li>
<UL>
-<li>Le redémarrage en douceur du serveur est maintenant traité en envoyant
-au processus père le signal <code>WINCH</code> à la place du
-signal <code>USR1</code>.</li>
-
<li>L'option <code>-S</code> du programme <code>httpd</code>
qui servait à afficher la configuration des hôtes virtuels est
remplacé par <code>-t -D DUMP_VHOSTS</code>.</li>
projects / apache / commitdiff