Merge r1836638 from trunk:

add 2 conditional logging examples

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1836640 13f79535-47bb-0310-9956-ffa450edef68

diff --git a/docs/manual/expr.xml b/docs/manual/expr.xml
index 04f07e224144d6bb3fa10156053dd10496cd631b..339d8657d43868b4db316433e5ef2f19dd4f288a 100644 (file)
--- a/docs/manual/expr.xml
+++ b/docs/manual/expr.xml
@@ -627,6 +627,10 @@ Header set foo-checksum "expr=%{md5:foo}"
 # This delays the evaluation of the condition clause compared to <If>
 Header always set CustomHeader my-value "expr=%{REQUEST_URI} =~ m#^/special_path\.php$#"
 
+# Conditional logging
+CustomLog logs/access-errors.log common “expr=%{REQUEST_STATUS} >= 400”
+CustomLog logs/access-errors-specific.log common “expr=%{REQUEST_STATUS} -in {'405','410'}"
+
     </highlight>
 </section>