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Posted to commits@uima.apache.org by cw...@apache.org on 2014/07/08 17:04:45 UTC

svn commit: r1608823 - /uima/sandbox/uima-ducc/trunk/uima-ducc-agent/src/main/java/org/apache/uima/ducc/agent/processors/LinuxProcessMetricsProcessor.java

Author: cwiklik
Date: Tue Jul  8 15:04:45 2014
New Revision: 1608823

URL: http://svn.apache.org/r1608823
Log:
UIMA-3937 fix division by zero exception

Modified:
    uima/sandbox/uima-ducc/trunk/uima-ducc-agent/src/main/java/org/apache/uima/ducc/agent/processors/LinuxProcessMetricsProcessor.java

Modified: uima/sandbox/uima-ducc/trunk/uima-ducc-agent/src/main/java/org/apache/uima/ducc/agent/processors/LinuxProcessMetricsProcessor.java
URL: http://svn.apache.org/viewvc/uima/sandbox/uima-ducc/trunk/uima-ducc-agent/src/main/java/org/apache/uima/ducc/agent/processors/LinuxProcessMetricsProcessor.java?rev=1608823&r1=1608822&r2=1608823&view=diff
==============================================================================
--- uima/sandbox/uima-ducc/trunk/uima-ducc-agent/src/main/java/org/apache/uima/ducc/agent/processors/LinuxProcessMetricsProcessor.java (original)
+++ uima/sandbox/uima-ducc/trunk/uima-ducc-agent/src/main/java/org/apache/uima/ducc/agent/processors/LinuxProcessMetricsProcessor.java Tue Jul  8 15:04:45 2014
@@ -282,9 +282,11 @@ public class LinuxProcessMetricsProcesso
             }
             // normalize time in running state into seconds
             long timeSinceRunningInSeconds = (System.currentTimeMillis() - clockAtStartOfRun)/1000;
-            //  normalize cpu % usage to report in seconds. Also subtract how much cpu was
-            //  used during initialization
-            percentCPU = 100* ( totalCpuUsage - totalCpuInitUsage )/timeSinceRunningInSeconds;
+            if ( timeSinceRunningInSeconds > 0) { // prevent division by zero
+                //  normalize cpu % usage to report in seconds. Also subtract how much cpu was
+                //  used during initialization
+                percentCPU = 100* ( totalCpuUsage - totalCpuInitUsage )/timeSinceRunningInSeconds;
+            }
             
             // Publish cumulative CPU usage
             process.setCpuTime(percentCPU);