Rationale for a child-process

Author: Neamar

lib/helpers/child-process.js

@@ -1,5 +1,13 @@
 "use strict";
-
+/*
+ * A new process is spawned with this file for each task.
+ * Inter process comunication is used to send and receive message from the parent process regarding the task.
+ * This let us finely control the behavior of the hydration function.
+ * If it happens to get stuck in a subprocess or in an HTTP blackhole,
+ * the master process can simply kill the child and resume its normal operation.
+ * Without the sub-process isolation, we get stuck quite fast and get leaks everywhere.
+ */
+ 
 var crypto = require('crypto');
 var async = require("async");
 var fs = require('fs');