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Change the CacheRoot processing to check for a required

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value at config time. This saves a lot of wasted processing
if the mod_disk_cache module is loaded but no CacheRoot
was provided. This fix also adds code to log an error
and avoid useless pallocs and procesing when the computed
cache file name cannot be opened. This also updates the
docs accordingly.  [Paul J. Reder]


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@97291 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Paul J. Reder
2002-10-24 18:56:18 +00:00
parent ccb3fa0ac7
commit 4d41fa588f
1 changed files with 10 additions and 5 deletions
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15
docs/manual/mod/mod_disk_cache.xml
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@@ -24,14 +24,19 @@ This module is experimental. Documentation is still under development...
<directivesynopsis>
<name>CacheRoot</name>
<description>The directory to store cache files</description>
<description>The directory root under which cache files are stored</description>
<syntax>CacheRoot <em>directory</em></syntax>
<default>none</default>
<contextlist><context>server config</context></contextlist>
<usage>
<p>The <directive>CacheRoot</directive> directive defines the name of the directory
on the disk to contain cache files. What is happening if not set ?</p>
on the disk to contain cache files. If the mod_disk_cache module has been loaded
or compiled in to the Apache server, this directive <em>must</em> be defined. Failing to
provide a value for <directive>CacheRoot</directive> will result in a configuration
file processing error. The <directive>CacheDirLevels</directive> and
<directive>CacheDirLength</directive> directives define the structure of the directories
under the specified root directory.</p>
<example>
CacheRoot c:/cacheroot <br />
@@ -47,14 +52,14 @@ This module is experimental. Documentation is still under development...
<contextlist><context>server config</context></contextlist>
<usage>
<p>The <directive>MCacheSize</directive> directive sets the desired disk space
<p>The <directive>CacheSize</directive> directive sets the desired disk space
usage of the cache, in KBytes (1024-byte units). This directive does not put a
hard limit on the size of the cache. The garbage collector will delete files
until the usage is at or below the settings. Always use a value that is lower
than the available disk space.</p>
<example>
MCacheSize 5000000 <br />
CacheSize 5000000 <br />
</example>
</usage>
</directivesynopsis>
@@ -256,4 +261,4 @@ The <directive>CacheGcMemUsage</directive> directive is currently <em>not</em> i
</usage>
</directivesynopsis>
</modulesynopsis>
</modulesynopsis>