Update abi and min/max confusion.

1 files changed, 1 insertions, 1 deletions

diff --git a/messagebus/src/main/java/com/yahoo/messagebus/DynamicThrottlePolicy.java b/messagebus/src/main/java/com/yahoo/messagebus/DynamicThrottlePolicy.java
index 13e90b9a65d..76d3bc07d2b 100644
--- a/messagebus/src/main/java/com/yahoo/messagebus/DynamicThrottlePolicy.java
+++ b/messagebus/src/main/java/com/yahoo/messagebus/DynamicThrottlePolicy.java
@@ -114,7 +114,7 @@ public class DynamicThrottlePolicy extends StaticThrottlePolicy {
             }
             double efficiency = throughput*period/windowSize;
             if (efficiency < efficiencyThreshold) {
-                windowSize = Math.max(windowSize * windowSizeBackOff, windowSize - decrementFactor * windowSizeIncrement);
+                windowSize = Math.min(windowSize * windowSizeBackOff, windowSize - decrementFactor * windowSizeIncrement);
                 localMaxThroughput = 0;
             } else {
                 windowSize += weight*windowSizeIncrement;