Refactor database performance diagnostics: Update connection pool diagnostics in diagnose-db-performance.js to improve error handling and enhance console output clarity. This change ensures more accurate user feedback regarding database connection pooling.

2026-01-29 14:03:15 +01:00
parent 59cad22183
commit d1ddfe7d31
2 changed files with 277 additions and 0 deletions
--- a/backend/create-performance-indexes.js
+++ b/backend/create-performance-indexes.js
@@ -0,0 +1,147 @@
+#!/usr/bin/env node
+
+/**
+ * Script zum Erstellen von Performance-Indizes
+ * 
+ * Erstellt Indizes basierend auf der Analyse häufiger Queries:
+ * - inventory: stock_id
+ * - stock: branch_id
+ * - production: branch_id
+ * - director: employer_user_id
+ * - knowledge: (character_id, product_id) composite
+ */
+
+import './config/loadEnv.js';
+import { sequelize } from './utils/sequelize.js';
+
+async function main() {
+    try {
+        console.log('🔧 Erstelle Performance-Indizes\n');
+        console.log('='.repeat(60) + '\n');
+
+        const indexes = [
+            {
+                name: 'idx_knowledge_character_product',
+                table: 'falukant_data.knowledge',
+                columns: '(character_id, product_id)',
+                description: 'Composite Index für JOINs mit character_id UND product_id',
+                critical: true
+            },
+            {
+                name: 'idx_inventory_stock_id',
+                table: 'falukant_data.inventory',
+                columns: '(stock_id)',
+                description: 'Index für WHERE inventory.stock_id = ...',
+                critical: true
+            },
+            {
+                name: 'idx_stock_branch_id',
+                table: 'falukant_data.stock',
+                columns: '(branch_id)',
+                description: 'Index für WHERE stock.branch_id = ...',
+                critical: true
+            },
+            {
+                name: 'idx_production_branch_id',
+                table: 'falukant_data.production',
+                columns: '(branch_id)',
+                description: 'Index für WHERE production.branch_id = ...',
+                critical: true
+            },
+            {
+                name: 'idx_director_employer_user_id',
+                table: 'falukant_data.director',
+                columns: '(employer_user_id)',
+                description: 'Index für WHERE director.employer_user_id = ...',
+                critical: true
+            },
+            {
+                name: 'idx_production_start_timestamp',
+                table: 'falukant_data.production',
+                columns: '(start_timestamp)',
+                description: 'Index für WHERE production.start_timestamp <= ...',
+                critical: false
+            },
+            {
+                name: 'idx_director_last_salary_payout',
+                table: 'falukant_data.director',
+                columns: '(last_salary_payout)',
+                description: 'Index für WHERE director.last_salary_payout < ...',
+                critical: false
+            }
+        ];
+
+        console.log(`📋 ${indexes.length} Indizes werden erstellt:\n`);
+
+        let created = 0;
+        let skipped = 0;
+        let errors = 0;
+
+        for (let i = 0; i < indexes.length; i++) {
+            const idx = indexes[i];
+            const criticalMark = idx.critical ? ' ⚠️  KRITISCH' : '';
+            
+            console.log(`[${i + 1}/${indexes.length}] ${idx.name}${criticalMark}`);
+            console.log(`   Tabelle: ${idx.table}`);
+            console.log(`   Spalten: ${idx.columns}`);
+            console.log(`   Beschreibung: ${idx.description}`);
+
+            try {
+                // Prüfe ob Index bereits existiert
+                const [existing] = await sequelize.query(`
+                    SELECT EXISTS(
+                        SELECT 1 FROM pg_indexes 
+                        WHERE schemaname || '.' || tablename = '${idx.table}'
+                        AND indexname = '${idx.name}'
+                    ) as exists;
+                `);
+
+                if (existing[0].exists) {
+                    console.log(`   ⏭️  Index existiert bereits, überspringe\n`);
+                    skipped++;
+                    continue;
+                }
+
+                // Erstelle Index
+                const startTime = Date.now();
+                await sequelize.query(`
+                    CREATE INDEX IF NOT EXISTS ${idx.name}
+                    ON ${idx.table} USING btree ${idx.columns};
+                `);
+                
+                const duration = ((Date.now() - startTime) / 1000).toFixed(2);
+                console.log(`   ✅ Erstellt in ${duration}s\n`);
+                created++;
+
+            } catch (error) {
+                console.error(`   ❌ Fehler: ${error.message}\n`);
+                errors++;
+            }
+        }
+
+        console.log('='.repeat(60));
+        console.log(`✅ Zusammenfassung:`);
+        console.log(`   Erstellt: ${created}`);
+        console.log(`   Übersprungen: ${skipped}`);
+        console.log(`   Fehler: ${errors}\n`);
+
+        if (created > 0) {
+            console.log('💡 Tipp: Führe ANALYZE aus, damit PostgreSQL die neuen Indizes berücksichtigt:');
+            console.log('   ANALYZE falukant_data.knowledge;');
+            console.log('   ANALYZE falukant_data.inventory;');
+            console.log('   ANALYZE falukant_data.stock;');
+            console.log('   ANALYZE falukant_data.production;');
+            console.log('   ANALYZE falukant_data.director;\n');
+        }
+
+        await sequelize.close();
+        process.exit(0);
+
+    } catch (error) {
+        console.error('❌ Fehler:', error.message);
+        console.error(error.stack);
+        process.exit(1);
+    }
+}
+
+main();