Do not Initialize language workers at application level (#3874)

Author: pragnagopa

src/WebJobs.Script/Rpc/RpcInitializationService.cs

@@ -43,7 +43,8 @@ public async Task StartAsync(CancellationToken cancellationToken)
             }
             _logger.LogInformation("Starting Rpc Initialization Service.");
             await InitializeRpcServerAsync();
-            await InitializeChannelsAsync();
+            // TODO: pgopa Uncomment following after addressing issue https://github.com/Azure/azure-functions-host/issues/3872
+            // await InitializeChannelsAsync();
         }
 
         public async Task StopAsync(CancellationToken cancellationToken)

test/WebJobs.Script.Tests.Integration/Rpc/LanguageWorkerChannelManagerEndToEndTests.cs

@@ -19,7 +19,7 @@ public LanguageWorkerChannelManagerEndToEndTests(TestFixture fixture)
 
         public TestFixture Fixture { get; set; }
 
-        [Fact]
+        [Fact(Skip = "https://github.com/Azure/azure-functions-host/issues/3872")]
         public void InitializeAsync_DoNotInitialize_JavaWorker_ProxiesOnly()
         {
             var javaChannel = _languageWorkerChannelManager.GetChannel(LanguageWorkerConstants.JavaLanguageWorkerName);

test/WebJobs.Script.Tests.Integration/ScriptHostEndToEnd/NodeContentTests.cs

@@ -132,7 +132,7 @@ public async Task ObjectXml()
             Assert.Equal(str, content);
         }
 
-        [Fact]
+        [Fact(Skip = "https://github.com/Azure/azure-functions-host/issues/3872")]
         public void InitializeAsync_WorkerRuntime_Node_DoNotInitialize_JavaWorker()
         {
             var javaChannel = _languageWorkerChannelManager.GetChannel(LanguageWorkerConstants.JavaLanguageWorkerName);