changed after resetStat activePeak default value.

src/main/java/com/alibaba/druid/pool/DruidDataSource.java

@@ -377,7 +377,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
             notEmptySignalCount = 0L;
             notEmptyWaitNanos = 0;
 
-            activePeak = 0;
+            activePeak = activeCount;
             activePeakTime = 0;
             poolingPeak = 0;
             createTimespan = 0;