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From cove...@apache.org
Subject svn commit: r814313 - in /httpd/httpd/branches/2.2.x/docs/manual/mod: mod_mem_cache.html.en mod_mem_cache.xml
Date Sun, 13 Sep 2009 13:44:15 GMT
Author: covener
Date: Sun Sep 13 13:44:15 2009
New Revision: 814313

URL: http://svn.apache.org/viewvc?rev=814313&view=rev
Log:
Provide a hint to those stuck with mod_mem_cache about coping with the per-process limitation.
Add detail about another deficiency relative to disk_cache [1 variant at a time].

PR 47783 
Reported By: Stoehr Sukachevin


Modified:
    httpd/httpd/branches/2.2.x/docs/manual/mod/mod_mem_cache.html.en
    httpd/httpd/branches/2.2.x/docs/manual/mod/mod_mem_cache.xml

Modified: httpd/httpd/branches/2.2.x/docs/manual/mod/mod_mem_cache.html.en
URL: http://svn.apache.org/viewvc/httpd/httpd/branches/2.2.x/docs/manual/mod/mod_mem_cache.html.en?rev=814313&r1=814312&r2=814313&view=diff
==============================================================================
--- httpd/httpd/branches/2.2.x/docs/manual/mod/mod_mem_cache.html.en (original)
+++ httpd/httpd/branches/2.2.x/docs/manual/mod/mod_mem_cache.html.en Sun Sep 13 13:44:15 2009
@@ -42,7 +42,11 @@
     
     <div class="note"><h3>Note</h3>In most cases <code class="module"><a
href="../mod/mod_disk_cache.html">mod_disk_cache</a></code>
     should be the preferred choice. This is explained further in the <a href="../caching.html#inmemory">Caching
Guide</a>.  In particular,
-    this module's cache is <em>per-process</em>.</div>
+    this module's cache is <em>per-process</em>, which can be partially
+    mitigated by configuring threaded MPMS to use fewer child processes
+    via configuration of larger values for <code class="directive"><a href="../mod/mpm_common.html#threadsperchild">ThreadsPerChild</a></code>.
 This module's cache is 
+    also limited to storing a single variant (see HTTP Vary: header) of each 
+    resource in the cache.</div>
 </div>
 <div id="quickview"><h3 class="directives">Directives</h3>
 <ul id="toc">

Modified: httpd/httpd/branches/2.2.x/docs/manual/mod/mod_mem_cache.xml
URL: http://svn.apache.org/viewvc/httpd/httpd/branches/2.2.x/docs/manual/mod/mod_mem_cache.xml?rev=814313&r1=814312&r2=814313&view=diff
==============================================================================
--- httpd/httpd/branches/2.2.x/docs/manual/mod/mod_mem_cache.xml (original)
+++ httpd/httpd/branches/2.2.x/docs/manual/mod/mod_mem_cache.xml Sun Sep 13 13:44:15 2009
@@ -45,7 +45,12 @@
     <note><title>Note</title>In most cases <module>mod_disk_cache</module>
     should be the preferred choice. This is explained further in the <a
     href="../caching.html#inmemory">Caching Guide</a>.  In particular,
-    this module's cache is <em>per-process</em>.</note>
+    this module's cache is <em>per-process</em>, which can be partially
+    mitigated by configuring threaded MPMS to use fewer child processes
+    via configuration of larger values for <directive 
+    module="mpm_common">ThreadsPerChild</directive>.  This module's cache is 
+    also limited to storing a single variant (see HTTP Vary: header) of each 
+    resource in the cache.</note>
 </summary>
 <seealso><module>mod_cache</module></seealso>
 <seealso><module>mod_disk_cache</module></seealso>



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