修復 too many connection 問題

scripts/ultimate-kill.js

@@ -0,0 +1,93 @@
+// =====================================================
+// 終極連線清理腳本
+// =====================================================
+
+const mysql = require('mysql2/promise');
+
+async function ultimateKill() {
+  console.log('💀 執行終極連線清理腳本...');
+  
+  let connection = null;
+  
+  try {
+    // 建立連線
+    connection = await mysql.createConnection({
+      host: process.env.DB_HOST || '122.100.99.161',
+      port: parseInt(process.env.DB_PORT || '43306'),
+      user: process.env.DB_USER || 'A999',
+      password: process.env.DB_PASSWORD || '1023',
+      database: process.env.DB_NAME || 'db_AI_Platform',
+      charset: 'utf8mb4',
+      timezone: '+08:00',
+    });
+
+    console.log('✅ 已連接到資料庫');
+
+    // 獲取所有連線
+    const [connections] = await connection.execute(`
+      SELECT ID, USER, HOST, DB, COMMAND, TIME, STATE, INFO
+      FROM information_schema.PROCESSLIST 
+      WHERE USER = ?
+      ORDER BY TIME DESC
+    `, [process.env.DB_USER || 'A999']);
+
+    console.log(`🔍 找到 ${connections.length} 個連線需要清理`);
+
+    // 顯示連線詳情
+    connections.forEach((conn, index) => {
+      console.log(`${index + 1}. ID: ${conn.ID}, 用戶: ${conn.USER}, 時間: ${conn.TIME}s, 狀態: ${conn.STATE}`);
+    });
+
+    // 殺死所有連線（除了當前連線）
+    let killedCount = 0;
+    for (const conn of connections) {
+      if (conn.ID !== connection.threadId) {
+        try {
+          await connection.execute(`KILL ${conn.ID}`);
+          console.log(`💀 已殺死連線 ${conn.ID}`);
+          killedCount++;
+        } catch (error) {
+          console.log(`⚠️ 無法殺死連線 ${conn.ID}: ${error.message}`);
+        }
+      }
+    }
+
+    console.log(`✅ 已殺死 ${killedCount} 個連線`);
+
+    // 等待連線關閉
+    console.log('⏳ 等待連線完全關閉...');
+    await new Promise(resolve => setTimeout(resolve, 3000));
+
+    // 檢查最終狀態
+    const [finalConnections] = await connection.execute(`
+      SELECT COUNT(*) as count FROM information_schema.PROCESSLIST 
+      WHERE USER = ?
+    `, [process.env.DB_USER || 'A999']);
+
+    const remainingConnections = finalConnections[0].count;
+    console.log(`📊 清理後剩餘連線: ${remainingConnections}`);
+
+    if (remainingConnections <= 1) {
+      console.log('🎉 連線清理成功！');
+    } else {
+      console.warn(`⚠️ 仍有 ${remainingConnections - 1} 個連線未清理`);
+    }
+
+  } catch (error) {
+    console.error('❌ 終極清理失敗:', error);
+  } finally {
+    if (connection) {
+      await connection.end();
+      console.log('🔌 連線已關閉');
+    }
+  }
+}
+
+// 執行清理
+ultimateKill().then(() => {
+  console.log('✅ 腳本執行完成');
+  process.exit(0);
+}).catch((error) => {
+  console.error('❌ 腳本執行失敗:', error);
+  process.exit(1);
+});