v6.8.0

index.js

@@ -1,7 +1,6 @@
 var path = require('path');
 var crypto = require('crypto');
 var EventEmitter = require('events').EventEmitter;
-var domain = require('sc-domain');
 var uuid = require('uuid');
 var fork = require('child_process').fork;
 var os = require('os');
@@ -49,18 +48,18 @@ var SocketCluster = function (options) {
     'EADDRINUSE': 'Failed to bind to a port because it was already used by another process.'
   };
 
-  self._errorDomain = domain.create();
-  self._errorDomain.on('error', function (err) {
-    self.errorHandler(err, {
+  self.on('error', function (error) {
+    self.emitFail(error, {
       type: 'Master',
       pid: process.pid
     });
   });
 
-  self._errorDomain.add(self);
-
-  self._errorDomain.run(function () {
+  // Capture any errors that are thrown during initialization.
+  new Promise(function () {
     self._init(options);
+  }).catch(function (error) {
+    self.emit('error', error);
   });
 };
 
@@ -309,7 +308,7 @@ SocketCluster.prototype._init = function (options) {
   }
 
   process.stdin.on('error', function (err) {
-    self.warningHandler(err, {
+    self.emitWarning(err, {
       type: 'Master',
       pid: process.pid
     });
@@ -397,7 +396,6 @@ SocketCluster.prototype._convertValueToUnknownError = function (err, origin) {
   if (!(err instanceof Error)) {
     if (err && typeof err == 'object') {
       if (err.message || err.stack) {
-        // TODO 2
         err = scErrors.hydrateError(err, true);
       } else {
         // If err has neither a stack nor a message property
@@ -433,7 +431,7 @@ SocketCluster.prototype._convertValueToUnknownError = function (err, origin) {
   return err;
 };
 
-SocketCluster.prototype.errorHandler = function (err, origin) {
+SocketCluster.prototype.emitFail = function (err, origin) {
   err = this._convertValueToUnknownError(err, origin);
 
   var annotation = this._errorAnnotations[err.code];
@@ -446,7 +444,7 @@ SocketCluster.prototype.errorHandler = function (err, origin) {
   this._logObject(err, 'Error');
 };
 
-SocketCluster.prototype.warningHandler = function (warning, origin) {
+SocketCluster.prototype.emitWarning = function (warning, origin) {
   warning = this._convertValueToUnknownError(warning, origin);
 
   this.emit(this.EVENT_WARNING, warning);
@@ -457,28 +455,28 @@ SocketCluster.prototype.warningHandler = function (warning, origin) {
 };
 
 SocketCluster.prototype._workerClusterErrorHandler = function (pid, error) {
-  this.errorHandler(error, {
+  this.emitFail(error, {
     type: 'WorkerCluster',
     pid: pid
   });
 };
 
 SocketCluster.prototype._workerErrorHandler = function (workerPid, error) {
-  this.errorHandler(error, {
+  this.emitFail(error, {
     type: 'Worker',
     pid: workerPid
   });
 };
 
 SocketCluster.prototype._brokerEngineErrorHandler = function (pid, error) {
-  this.errorHandler(error, {
+  this.emitFail(error, {
     type: 'BrokerEngine',
     pid: pid
   });
 };
 
 SocketCluster.prototype._brokerErrorHandler = function (brokerPid, error) {
-  this.errorHandler(error, {
+  this.emitFail(error, {
     type: 'Broker',
     pid: brokerPid
   });
@@ -489,7 +487,7 @@ SocketCluster.prototype._workerWarningHandler = function (workerPid, warning) {
     type: 'Worker',
     pid: workerPid
   };
-  this.warningHandler(warning, origin);
+  this.emitWarning(warning, origin);
 };
 
 SocketCluster.prototype._workerClusterReadyHandler = function () {
@@ -509,7 +507,7 @@ SocketCluster.prototype._workerClusterReadyHandler = function () {
 
         var warning = new ProcessExitError(warningMessage);
 
-        self.warningHandler(warning, {
+        self.emitWarning(warning, {
           type: 'Master',
           pid: process.pid
         });
@@ -571,7 +569,7 @@ SocketCluster.prototype._handleWorkerClusterExit = function (errorCode, signal)
     this.log(message);
   } else {
     var error = new ProcessExitError(message, errorCode);
-    this.errorHandler(error, {
+    this.emitFail(error, {
       type: 'WorkerCluster',
       pid: wcPid
     });

kubernetes/socketcluster-deployment.yaml

@@ -11,7 +11,7 @@ spec:
     spec:
       containers:
       - name: socketcluster
-        image: socketcluster/socketcluster:v6.7.1
+        image: socketcluster/socketcluster:v6.8.0
         ports:
         - containerPort: 8000
         env:

lib/scworker.js

@@ -1,7 +1,6 @@
 var socketClusterServer = require('socketcluster-server');
 var EventEmitter = require('events').EventEmitter;
 var crypto = require('crypto');
-var domain = require('sc-domain');
 var uuid = require('uuid');
 var http = require('http');
 var https = require('https');
@@ -31,15 +30,7 @@ var SCWorker = function (options) {
   this.type = 'worker';
   self._pendingResponseHandlers = {};
 
-  this._errorDomain = domain.create();
-  this._errorDomain.on('error', function () {
-    self.errorHandler.apply(self, arguments);
-  });
-
-  this.start = this._errorDomain.bind(this._start);
-  this._errorDomain.run(function () {
-    self._init(options);
-  });
+  this._init(options);
 };
 
 SCWorker.prototype = Object.create(EventEmitter.prototype);
@@ -77,9 +68,9 @@ SCWorker.prototype._init = function (options) {
     try {
       process.setuid(this.options.downgradeToUser);
     } catch (err) {
-      this._errorDomain.emit('error', new InvalidActionError('Could not downgrade to user "' + this.options.downgradeToUser +
+      throw new InvalidActionError('Could not downgrade to user "' + this.options.downgradeToUser +
         '" - Either this user does not exist or the current process does not have the permission' +
-        ' to switch to it.'));
+        ' to switch to it'); // TODO 2 test this
     }
   }
 
@@ -106,10 +97,10 @@ SCWorker.prototype._init = function (options) {
     } else {
       error = err;
     }
-    self._errorDomain.emit('error', error);
+    self.emitError(error);
   });
   this.brokerEngineClient.on('warning', function (warning) {
-    self.warningHandler(warning);
+    self.emitWarning(warning);
   });
   this.exchange = this.global = this.brokerEngineClient.exchange();
 
@@ -128,15 +119,14 @@ SCWorker.prototype._init = function (options) {
 
   this.httpServer.exchange = this.httpServer.global = this.exchange;
 
-  var httpServerErrorDomain = domain.create();
-  httpServerErrorDomain.add(this.httpServer);
-  httpServerErrorDomain.on('error', function (err) {
+  this.httpServer.on('error', function (err) {
+    var error;
     if (typeof err == 'string') {
       error = new HTTPServerError(err);
     } else {
       error = err;
     }
-    self._errorDomain.emit('error', error);
+    self.emitError(error);
   });
 
   var secure = this.options.protocol == 'https' ? 1 : 0;
@@ -172,6 +162,9 @@ SCWorker.prototype._init = function (options) {
   this.setAuthEngine(new AuthEngine());
   this.codec = this.scServer.codec;
 
+  this._socketPath = this.scServer.getPath();
+  this._socketPathRegex = new RegExp('^' + this._socketPath);
+
   this.scServer.on('_connection', function (socket) {
     // The connection event counts as a WS request
     self._wsRequestCount++;
@@ -181,15 +174,12 @@ SCWorker.prototype._init = function (options) {
     self.emit(self.EVENT_CONNECTION, socket);
   });
 
-  this.scServer.on('warning', function () {
-    self.warningHandler.apply(self, arguments);
+  this.scServer.on('warning', function (warning) {
+    self.emitWarning(warning);
+  });
+  this.scServer.on('error', function (error) {
+    self.emitError(error);
   });
-
-  this._socketPath = this.scServer.getPath();
-  this._socketPathRegex = new RegExp('^' + this._socketPath);
-
-  this._errorDomain.add(this.scServer);
-
   this.scServer.on('ready', function () {
     self.emit(self.EVENT_READY);
   });
@@ -257,7 +247,7 @@ SCWorker.prototype._startServer = function () {
   }
 };
 
-SCWorker.prototype._start = function () {
+SCWorker.prototype.start = function () {
   var self = this;
 
   this._httpRequestCount = 0;
@@ -335,7 +325,7 @@ SCWorker.prototype._calculateStatus = function () {
       message += 'usage of ' + memoryUsage.heapUsed + ' exceeded ';
       message += 'the killWorkerMemoryThreshold of ' + memThreshold;
       var warning = new ResourceLimitError(message);
-      this.warningHandler(warning);
+      this.emitWarning(warning);
       process.exit();
     }
   }
@@ -415,11 +405,11 @@ SCWorker.prototype.handleMasterMessage = function (message) {
   });
 };
 
-SCWorker.prototype.errorHandler = function (err) {
+SCWorker.prototype.emitError = function (err) {
   this.emit(this.EVENT_ERROR, err);
 };
 
-SCWorker.prototype.warningHandler = function (warning) {
+SCWorker.prototype.emitWarning = function (warning) {
   this.emit(this.EVENT_WARNING, warning);
 };