Update MaxQueuePollingInterval default for Flex Consumption apps

src/WebJobs.Extensions.DurableTask/Options/AzureStorageOptions.cs

@@ -18,6 +18,7 @@ public class AzureStorageOptions
         private const int MaxTaskHubNameSize = 45;
         private const int MinTaskHubNameSize = 3;
         private const string TaskHubPadding = "Hub";
+        private TimeSpan maxQueuePollingInterval;
 
         /// <summary>
         /// Gets or sets the name of the Azure Storage connection information used to manage the underlying Azure Storage resources.
@@ -162,7 +163,27 @@ public string TrackingStoreConnectionStringName
         /// Gets or sets the maximum queue polling interval.
         /// </summary>
         /// <value>Maximum interval for polling control and work-item queues.</value>
-        public TimeSpan MaxQueuePollingInterval { get; set; } = TimeSpan.FromSeconds(30);
+        public TimeSpan MaxQueuePollingInterval
+        {
+            get
+            {
+                if (string.Equals(Environment.GetEnvironmentVariable("WEBSITE_SKU"), "FlexConsumption", StringComparison.OrdinalIgnoreCase))
+                {
+                    this.maxQueuePollingInterval = TimeSpan.FromSeconds(1);
+                }
+                else
+                {
+                    this.maxQueuePollingInterval = TimeSpan.FromSeconds(30);
+                }
+
+                return this.maxQueuePollingInterval;
+            }
+
+            set
+            {
+                this.maxQueuePollingInterval = value;
+            }
+        }
 
         /// <summary>
         /// Determines whether or not to use the old partition management strategy, or the new