mylogger.js

@@ -57,9 +57,12 @@ module.exports = class MyLogger {
   async init() {
     const {conf} = this;
     this.debug('MyLogger', 'Initializing.');
+    this.onErrorListener = err => this.onError(err);
 
     // DB connection
+
     const db = this.db = await mysql.createConnection(conf.dstDb);
+    db.on('error', this.onErrorListener);
 
     await this.modelLoader.loadSchema();
     await this.showDb.loadSchema();
@@ -132,6 +135,8 @@ module.exports = class MyLogger {
     this.running = false;
     this.debug('MyLogger', 'Ending.');
   
+    this.db.off('error', this.onErrorListener);
+
     clearInterval(this.flushInterval);
     clearInterval(this.pingInterval);
     clearInterval(this.flushTimeout);
@@ -201,6 +206,7 @@ module.exports = class MyLogger {
       zongji.once('error',  onError);
       zongji.start(zongjiOpts);
     });
+    zongji.on('error', this.onErrorListener);
     this.zongji = zongji;
     this.debug('Zongji', 'Started.');
   }
@@ -214,6 +220,7 @@ module.exports = class MyLogger {
     this.zongji = null;
 
     zongji.off('binlog', this.onBinlogListener);
+    zongji.off('error', this.onErrorListener);
 
     // FIXME: Cannot call Zongji.stop(), it doesn't wait to end connection
     zongji.connection.destroy(() => {
@@ -243,7 +250,7 @@ module.exports = class MyLogger {
     }
   }
 
-  async handleError(err) {
+  async onError(err) {
     if (!this.isOk) return;
     this.isOk = false;
     console.log(`Error: ${err.code}: ${err.message}`);
@@ -252,19 +259,19 @@ module.exports = class MyLogger {
       await this.end(true);
     } catch(e) {}
 
-    // FIXME: Error of mysql2/promise
-    if (err.message === `Can't add new command when connection is in closed state`)
+    switch (err.code) {
+      case 'PROTOCOL_CONNECTION_LOST':
+      case 'ECONNRESET':
+      console.log('Trying to restart process.');
       await this.tryRestart();
-    else
-      switch (err.code) {
-        case 'PROTOCOL_CONNECTION_LOST':
-        case 'ECONNRESET':
-        console.log('Trying to restart process.');
-        await this.tryRestart();
-        break;
-      default:
-        process.exit();
-      }
+      break;
+    default:
+      process.exit();
+    }
+  }
+
+  handleError(err) {
+    console.error(err);
   }
 
   async onBinlog(evt) {
@@ -485,7 +492,6 @@ module.exports = class MyLogger {
     const isDelete = action == 'delete';
     const isUpdate = action == 'update';
     const created = new Date(evt.timestamp);
-    const showId = tableInfo.conf.showId;
 
     for (const change of changes) {
       let newI, oldI;
@@ -508,7 +514,7 @@ module.exports = class MyLogger {
           oldI = change.instance;
           break;
       }
-      const summaryId = showId ? row[showId] : null;
+      const summaryId = row[tableInfo.conf.showId];
       const modelId = row[tableInfo.idName];
       const modelValue = change.modelValue ?? null;
       const oldInstance = oldI ? JSON.stringify(oldI) : null;

package.json

@@ -1,6 +1,6 @@
 {
   "name": "mylogger",
-  "version": "1.1.5",
+  "version": "1.1.4",
   "author": "Verdnatura Levante SL",
   "description": "MySQL and MariaDB logger using binary log",
   "license": "GPL-3.0",