Merge pull request #529 from harlentan/patch-1

fix worker will die if the master exit

lib/appenders/multiprocess.js

@@ -121,6 +121,11 @@ function workerAppender(config) {
     socket.on('timeout', socket.end.bind(socket));
     // don't bother listening for 'error', 'close' gets called after that anyway
     socket.on('close', createSocket);
+    socket.on('error', (e) => {
+      debug('connection error', e);
+      canWrite = false;
+      emptyBuffer();
+    });
   }
 
   createSocket();