Feature/unified storage search dual reader (#108291)

* Add UnifiedStorageSearchDualReaderEnabled feature flag

Signed-off-by: Maicon Costa <maiconscosta@gmail.com>

* Refactor UniSearch Dual Reader

Signed-off-by: Maicon Costa <maiconscosta@gmail.com>

* Run make gen-feature-toggles

Signed-off-by: Maicon Costa <maiconscosta@gmail.com>

* fix: unit tests search_client

Signed-off-by: Bruno Abrantes <bruno@brunoabrantes.com>

* feat: cancels shadow search requests after 500ms

Signed-off-by: Bruno Abrantes <bruno@brunoabrantes.com>

---------

Signed-off-by: Maicon Costa <maiconscosta@gmail.com>
Signed-off-by: Bruno Abrantes <bruno@brunoabrantes.com>
Co-authored-by: Will Assis <william@williamassis.com>
Co-authored-by: Bruno Abrantes <bruno@brunoabrantes.com>

pkg/services/featuremgmt/registry.go

@@ -1819,6 +1819,14 @@ var (
 			Expression:        "false",
 			RequiresRestart:   true,
 		},
+		{
+			Name:              "unifiedStorageSearchDualReaderEnabled",
+			Description:       "Enable dual reader for unified storage search",
+			Stage:             FeatureStageExperimental,
+			Owner:             grafanaSearchAndStorageSquad,
+			HideFromAdminPage: true,
+			HideFromDocs:      true,
+		},
 	}
 )
 

pkg/services/featuremgmt/toggles_gen.csv

@@ -235,3 +235,4 @@ enablePluginImporter,experimental,@grafana/plugins-platform-backend,false,false,
 otelLogsFormatting,experimental,@grafana/observability-logs,false,false,true
 alertingNotificationHistory,experimental,@grafana/alerting-squad,false,false,false
 pluginAssetProvider,experimental,@grafana/plugins-platform-backend,false,true,false
+unifiedStorageSearchDualReaderEnabled,experimental,@grafana/search-and-storage,false,false,false

pkg/services/featuremgmt/toggles_gen.go

@@ -950,4 +950,8 @@ const (
 	// FlagPluginAssetProvider
 	// Allows decoupled core plugins to load from the Grafana CDN
 	FlagPluginAssetProvider = "pluginAssetProvider"
+
+	// FlagUnifiedStorageSearchDualReaderEnabled
+	// Enable dual reader for unified storage search
+	FlagUnifiedStorageSearchDualReaderEnabled = "unifiedStorageSearchDualReaderEnabled"
 )

pkg/services/featuremgmt/toggles_gen.json

@@ -2450,6 +2450,22 @@
         "requiresRestart": true
       }
     },
+    {
+      "metadata": {
+        "name": "pluginAssetProvider",
+        "resourceVersion": "1752486584712",
+        "creationTimestamp": "2025-07-14T09:49:44Z"
+      },
+      "spec": {
+        "description": "Allows decoupled core plugins to load from the Grafana CDN",
+        "stage": "experimental",
+        "codeowner": "@grafana/plugins-platform-backend",
+        "requiresRestart": true,
+        "hideFromAdminPage": true,
+        "hideFromDocs": true,
+        "expression": "false"
+      }
+    },
     {
       "metadata": {
         "name": "pluginLoadingRefactor",
@@ -2467,22 +2483,6 @@
         "expression": "false"
       }
     },
-    {
-      "metadata": {
-        "name": "pluginAssetProvider",
-        "resourceVersion": "1752486584712",
-        "creationTimestamp": "2025-07-14T09:49:44Z"
-      },
-      "spec": {
-        "description": "Allows decoupled core plugins to load from the Grafana CDN",
-        "stage": "experimental",
-        "codeowner": "@grafana/plugins-platform-backend",
-        "requiresRestart": true,
-        "hideFromAdminPage": true,
-        "hideFromDocs": true,
-        "expression": "false"
-      }
-    },
     {
       "metadata": {
         "name": "pluginProxyPreserveTrailingSlash",
@@ -3350,6 +3350,20 @@
         "hideFromDocs": true
       }
     },
+    {
+      "metadata": {
+        "name": "unifiedStorageSearchDualReaderEnabled",
+        "resourceVersion": "1752500336818",
+        "creationTimestamp": "2025-07-14T13:38:56Z"
+      },
+      "spec": {
+        "description": "Enable dual reader for unified storage search",
+        "stage": "experimental",
+        "codeowner": "@grafana/search-and-storage",
+        "hideFromAdminPage": true,
+        "hideFromDocs": true
+      }
+    },
     {
       "metadata": {
         "name": "unifiedStorageSearchPermissionFiltering",
@@ -3436,4 +3450,4 @@
       }
     }
   ]
-}
+}