Don't update the search cache if an update is already in progress

cabinetoffice · Feb 7, 2025 · c693b95 · c693b95
1 parent 8fdc188
commit c693b95
Showing 1 changed file with 16 additions and 3 deletions.
diff --git a/GenderPayGap.WebUI/Search/SearchCacheUpdaterService.cs b/GenderPayGap.WebUI/Search/SearchCacheUpdaterService.cs
@@ -27,18 +27,31 @@ public Task StartAsync(CancellationToken stoppingToken)
 
         private void DoWork(object state)
         {
+            if (updateInProgress)
+            {
+                CustomLogger.Information("Cache update postponed - another update is already in progress (SearchRepository.StartCacheUpdateThread)");
+                return;
+            }
+
+            updateInProgress = true;
             CustomLogger.Information("Starting cache update (SearchRepository.StartCacheUpdateThread)");
 
             try
             {
                 SearchRepository.LoadSearchDataIntoCache();
+
+                CustomLogger.Information("Finished cache update (SearchRepository.StartCacheUpdateThread)");
             }
             catch (Exception ex)
             {
-                CustomLogger.Error($"Error during cache update (SearchRepository.StartCacheUpdateThread): {ex.Message} {ex.StackTrace}", ex);
+                CustomLogger.Error(
+                    $"Error during cache update (SearchRepository.StartCacheUpdateThread): {ex.Message} {ex.StackTrace}",
+                    ex);
+            }
+            finally
+            {
+                updateInProgress = false;
             }
-
-            CustomLogger.Information("Finished cache update (SearchRepository.StartCacheUpdateThread)");
         }
 
         public Task StopAsync(CancellationToken stoppingToken)