Finished feature DBOARD3-242-debugging.

inventory_provider/static/update.html

@@ -57,6 +57,20 @@
           </table>
         </div>
 
+        <div class="container p-3 my-3 border" ng-show="failed.length">
+          <table class="table table-striped" summary="failed tasks">
+            <tr>
+              <th>
+                  <button ng-click="show_failed=!show_failed">{{show_failed ? "hide" : "show"}}</button>
+              </th>
+              <th scope="col">failed tasks</th>
+            </tr>
+            <tr ng-if="show_failed" ng-repeat="description in failed">
+              <td colspan="2">{{ description }}</td>
+            </tr>
+          </table>
+        </div>
+
         <div class="container p-3 my-3 border" ng-show="pending.length">
           <table class="table table-striped" summary="pending tasks">
             <tr>

inventory_provider/static/update.js

@@ -17,6 +17,7 @@ myApp.controller('update', function($scope, $http, $timeout) {
     $scope.show_warnings = true;
     $scope.show_errors = true;
     $scope.show_pending = true;
+    $scope.show_failed = true;
 
     $scope.check_status = function() {
 
@@ -32,6 +33,8 @@ myApp.controller('update', function($scope, $http, $timeout) {
                 $scope.latch_error = rsp.data.latch.failure;
                 if (!$scope.latch_pending) {
                     $scope.update_request_status = "";
+                } else {
+                    $scope.update_request_status = "update is running";
                 }
                 $timeout($scope.check_status, 5000);
             },

inventory_provider/tasks/worker.py

@@ -618,6 +618,8 @@ def _wait_for_tasks(task_ids, update_callback=lambda s: None):
 @log_task_entry_and_exit
 def refresh_finalizer(self, pending_task_ids_json):
 
+    # TODO: if more types of errors appear, use a finally block
+
     input_schema = {
         "$schema": "http://json-schema.org/draft-07/schema#",
         "type": "array",
@@ -635,7 +637,8 @@ def refresh_finalizer(self, pending_task_ids_json):
 
     except (jsonschema.ValidationError,
             json.JSONDecodeError,
-            InventoryTaskError) as e:
+            InventoryTaskError,
+            RedisError) as e:
         update_latch_status(InventoryTask.config, failure=True)
         raise e