title: how to increase nodejs default memory?
body: <p>On Server startup exporting 2GB(Approximately) data from mongodb to redis,then getting error as <code>FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - process out of memory</code>. </p>
  
  <p>Then started server with this command <code>node --max-old-space-size=4076 server.js</code> and works fine. But needs to configure in nodejs applicaton so that node server always starts with 4gb memory. Please help me how to fix this?
  Thanks.</p>