Node.js应用不断崩溃-内存

Question

I have a Node.js app that is basically the boilerplate that CONSTANTLY crashes due to this error:

an instance of the app crashed: out of memory

I have no idea how this app could crash with 256mb of memory. It does almost nothing server side beside respond to http requests and I am wondering how this could be. Garbage collection problem?

app.js

 require('newrelic'); //monitoring var express = require('express');//middleware var app = express(); var cfenv = require('cfenv');// Cloud Foundry library var appEnv = cfenv.getAppEnv(); app.use(express.static(__dirname + '/public')); app.listen(appEnv.port, appEnv.bind, function() { console.log("server starting on " + appEnv.url); }); 

UPDATE This appears to be the issue . Can't do anything at this point but remove the service. :(

Answer 1

when running an app in a low memory environment, it can happen that garbage collection is not triggered early enough. You can invoke it manully and see if that helps.

Add --expose-gc to the start command of your app - eg:

node --expose-gc myapp.js

Then in your code do this periodically:

Global.gc()

In order to monitor the memory consumption of your app you can do a cf curl:

cf curl /v2/apps/<your app guid>