[svnbook commit] r3182 - trunk/src/en/book
cmpilato
noreply at red-bean.com
Mon Jun 30 12:27:22 CDT 2008
Author: cmpilato
Date: Mon Jun 30 12:27:22 2008
New Revision: 3182
Log:
Add a blurb about not going crazy with large properties or property sets.
Suggested by: Karl Heinz Marbaise
Modified:
trunk/src/en/book/ch03-advanced-topics.xml
Modified: trunk/src/en/book/ch03-advanced-topics.xml
==============================================================================
--- trunk/src/en/book/ch03-advanced-topics.xml (original)
+++ trunk/src/en/book/ch03-advanced-topics.xml Mon Jun 30 12:27:22 2008
@@ -396,6 +396,17 @@
information that your site needs to display without having to
read an index file or play path manipulation games.</para>
+ <note>
+ <para>While Subversion places few restrictions on the names
+ and values you use for properties, it has not been designed
+ to optimally carry large property values or large sets of
+ properties on a given file or directory. Subversion
+ commonly holds all the property names and values associated
+ with a single item in memory at the same time, which can
+ cause detrimental performance or failed operations when
+ extremely large property sets are used.</para>
+ </note>
+
<para>Custom revision properties are also frequently used. One
common such use is a property whose value contains an issue
tracker ID with which the revision is associated, perhaps
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