Author: markt
Date: Wed Oct 28 15:30:49 2009
New Revision: 830589
URL: http://svn.apache.org/viewvc?rev=830589&view=rev
Log:
Ensure thread ratio calc is valid
Modified:
tomcat/trunk/java/org/apache/coyote/http11/Http11Processor.java
Modified: tomcat/trunk/java/org/apache/coyote/http11/Http11Processor.java
URL:
http://svn.apache.org/viewvc/tomcat/trunk/java/org/apache/coyote/http11/Http11Processor.java?rev=830589&r1=830588&r2=830589&view=diff
==============================================================================
--- tomcat/trunk/java/org/apache/coyote/http11/Http11Processor.java (original)
+++ tomcat/trunk/java/org/apache/coyote/http11/Http11Processor.java Wed Oct 28
15:30:49 2009
@@ -171,8 +171,16 @@
int soTimeout = endpoint.getSoTimeout();
- int threadRatio = (endpoint.getCurrentThreadsBusy() * 100)
- / endpoint.getMaxThreads();
+ int threadRatio = -1;
+ // These may return zero or negative values
+ // Only calculate a thread ratio when both are >0 to ensure we get a
+ // sensible result
+ if (endpoint.getCurrentThreadsBusy() >0 &&
+ endpoint.getMaxThreads() >0) {
+ threadRatio = (endpoint.getCurrentThreadsBusy() * 100)
+ / endpoint.getMaxThreads();
+ }
+ // Disable keep-alive if we are running low on threads
if (threadRatio > 75) {
keepAliveLeft = 1;
}
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