Set the MetadataProvider timeout to InfiniteTimeSpan for LA (#10589)

* Use InfiniteTimeSpan for LA

* Update notes

* Update release_notes.md

Author: liliankasem

release_notes.md

@@ -4,3 +4,4 @@
 - My change description (#PR)
 -->
 - The base commit for the release branch is set to v4.636.0.
+- Set the MetadataProvider timeout to InfiniteTimeSpan for LogicApps

src/WebJobs.Script/Host/FunctionMetadataManager.cs

@@ -6,6 +6,7 @@
 using System.Collections.Generic;
 using System.Collections.Immutable;
 using System.Linq;
+using System.Threading;
 using System.Threading.Tasks;
 using Microsoft.Azure.WebJobs.Logging;
 using Microsoft.Azure.WebJobs.Script.Description;
@@ -34,6 +35,7 @@ public class FunctionMetadataManager : IFunctionMetadataManager
         private ImmutableArray<FunctionMetadata> _functionMetadataArray;
         private Dictionary<string, ICollection<string>> _functionErrors = new Dictionary<string, ICollection<string>>();
         private ConcurrentDictionary<string, FunctionMetadata> _functionMetadataMap = new ConcurrentDictionary<string, FunctionMetadata>(StringComparer.OrdinalIgnoreCase);
+        private TimeSpan _metadataProviderTimeout;
 
         public FunctionMetadataManager(IOptions<ScriptJobHostOptions> scriptOptions, IFunctionMetadataProvider functionMetadataProvider,
             IOptions<HttpWorkerOptions> httpWorkerOptions, IScriptHostManager scriptHostManager, ILoggerFactory loggerFactory,
@@ -46,6 +48,8 @@ public FunctionMetadataManager(IOptions<ScriptJobHostOptions> scriptOptions, IFu
             _isHttpWorker = httpWorkerOptions?.Value?.Description != null;
             _environment = environment;
 
+            _metadataProviderTimeout = _environment.IsLogicApp() ? Timeout.InfiniteTimeSpan : TimeSpan.FromSeconds(DefaultMetadataProviderTimeoutInSeconds);
+
             // Every time script host is re-initializing, we also need to re-initialize
             // services that change with the scope of the script host.
             scriptHostManager.ActiveHostChanged += (s, e) =>
@@ -225,7 +229,7 @@ private void AddMetadataFromCustomProviders(IEnumerable<IFunctionProvider> funct
             foreach (var functionProvider in functionProviders)
             {
                 var getFunctionMetadataFromProviderTask = functionProvider.GetFunctionMetadataAsync();
-                var delayTask = Task.Delay(TimeSpan.FromSeconds(MetadataProviderTimeoutInSeconds));
+                var delayTask = Task.Delay(_metadataProviderTimeout);
 
                 var completedTask = Task.WhenAny(getFunctionMetadataFromProviderTask, delayTask).ContinueWith(t =>
                 {
@@ -235,7 +239,7 @@ private void AddMetadataFromCustomProviders(IEnumerable<IFunctionProvider> funct
                     }
 
                     // Timeout case.
-                    throw new TimeoutException($"Timeout occurred while retrieving metadata from provider '{functionProvider.GetType().FullName}'. The operation exceeded the configured timeout of {MetadataProviderTimeoutInSeconds} seconds.");
+                    throw new TimeoutException($"Timeout occurred while retrieving metadata from provider '{functionProvider.GetType().FullName}'. The operation exceeded the configured timeout of {_metadataProviderTimeout.TotalSeconds} seconds.");
                 });
 
                 functionProviderTasks.Add(completedTask);