Harden jira_usage counters

Return -1 for fallback, and 0 when no data exists

changelogs/unreleased/212398-harden-optimie-jira-usage-data.yml

+---
+title: Harden jira usage data
+merge_request: 27973
+author:
+type: performance

lib/gitlab/usage_data.rb

@@ -202,7 +202,7 @@ module Gitlab
         results = {
           projects_jira_server_active: 0,
           projects_jira_cloud_active: 0,
-          projects_jira_active: -1
+          projects_jira_active: 0
         }
 
         Service.active
@@ -217,14 +217,12 @@ module Gitlab
 
           results[:projects_jira_server_active] += counts[:server].count if counts[:server]
           results[:projects_jira_cloud_active] += counts[:cloud].count if counts[:cloud]
-          if results[:projects_jira_active] == -1
-            results[:projects_jira_active] = services.size
-          else
-            results[:projects_jira_active] += services.size
-          end
+          results[:projects_jira_active] += services.size
         end
 
         results
+      rescue ActiveRecord::StatementInvalid
+        { projects_jira_server_active: -1, projects_jira_cloud_active: -1, projects_jira_active: -1 }
       end
       # rubocop: enable CodeReuse/ActiveRecord
 

spec/lib/gitlab/usage_data_spec.rb

@@ -85,6 +85,13 @@ describe Gitlab::UsageData, :aggregate_failures do
 
         expect { subject }.not_to raise_error
       end
+
+      it 'jira usage works when queries time out' do
+        allow_any_instance_of(ActiveRecord::Relation)
+          .to receive(:find_in_batches).and_raise(ActiveRecord::StatementInvalid.new(''))
+
+        expect { described_class.jira_usage }.not_to raise_error
+      end
     end
 
     describe '#usage_data_counters' do