[Logs UI] Process long running requests in logs overview (#70791)

Author: Alejandro Fernández

x-pack/plugins/infra/public/utils/logs_overview_fetchers.ts

@@ -6,6 +6,7 @@
 
 import { encode } from 'rison-node';
 import { i18n } from '@kbn/i18n';
+import { SearchResponse } from 'src/plugins/data/public';
 import { DEFAULT_SOURCE_ID } from '../../common/constants';
 import { InfraClientCoreSetup, InfraClientStartDeps } from '../types';
 import {
@@ -89,9 +90,10 @@ async function fetchLogsOverview(
   params: FetchDataParams,
   dataPlugin: InfraClientStartDeps['data']
 ): Promise<StatsAndSeries> {
-  const esSearcher = dataPlugin.search.getSearchStrategy('es');
   return new Promise((resolve, reject) => {
-    esSearcher
+    let esResponse: SearchResponse = {};
+
+    dataPlugin.search
       .search({
         params: {
           index: logParams.index,
@@ -103,14 +105,15 @@ async function fetchLogsOverview(
         },
       })
       .subscribe(
-        (response) => {
-          if (response.rawResponse.aggregations) {
-            resolve(processLogsOverviewAggregations(response.rawResponse.aggregations));
+        (response) => (esResponse = response.rawResponse),
+        (error) => reject(error),
+        () => {
+          if (esResponse.aggregations) {
+            resolve(processLogsOverviewAggregations(esResponse.aggregations));
           } else {
             resolve({ stats: {}, series: {} });
           }
-        },
-        (error) => reject(error)
+        }
       );
   });
 }