https://github.com/OpenHFT/Chronicle-Map/issues/265 added max bloat factor

src/main/java/net/openhft/chronicle/map/ChronicleMap.java

@@ -237,5 +237,23 @@ public interface ChronicleMap<K, V> extends ConcurrentMap<K, V>,
     default int remainingAutoResizes() {
         throw new UnsupportedOperationException("todo");
     }
+
+
+    /**
+     * The maximum number of times, the chronicle map is allowed to grow in size beyond
+     * the configured number of entries.
+     * <p>
+     * <p>The default maximum bloat factor factor is {@code 1.0} - i. e. "no bloat is expected".
+     * <p>
+     * <p>It is strongly advised not to configure {@code maxBloatFactor} to more than {@code 10.0},
+     * almost certainly, you either should configure {@code ChronicleHash}es completely differently,
+     * or this data store doesn't fit to your case.
+     *
+     * @return maxBloatFactor the maximum number ot times, the chronicle map is alowed to be resized
+     */
+    default double maxBloatFactor() {
+        throw new UnsupportedOperationException("todo");
+    }
+
 }
 

src/main/java/net/openhft/chronicle/map/VanillaChronicleMap.java

@@ -280,6 +280,11 @@ public class VanillaChronicleMap<K, V, R>
         return (int) (maxTiers() - tiersUsed());
     }
 
+    @Override
+    public double maxBloatFactor() {
+        return maxBloatFactor;
+    }
+
     @Override
     public short percentageFreeSpace() {
         throwExceptionIfClosed();