tjfontaine/node-gcore

A module to induce core files from inside a node process

node-gcore

A small module to induce core files from inside a node process.

The more memory the process is using, the longer this will take, and for consistency reasons the method should be synchronous.

Usage

• gcore(filename)
  • Will SYNCHRONOUSLY produce a corefile with the name filename
  • Returns true/false if it was able create a core file

var gcore = require('gcore').gcore;
var result = gcore("corefile");

Caveats

• Currently only for Linux based platforms, but trivial to add SmartOS and probably others.

node-gcore's Issues

Not compatible with LLDB 3.8+

This project uses google coredumper, which is unmaintained since 2008.

I tried to use coredumps generated by this project with lldb 3.8 with llnode (https://github.com/nodejs/llnode), and because of compatibility issues, lldb crashes when trying to load the coredump.

See issue here: nodejs/llnode#61

I also assume than, since google coredumper seems unmaintained, compatibility issues will only grow in numbers. For instance: http://stackoverflow.com/questions/38314020/google-coredumper-returns-operation-not-permitted

As of now, I couldn't find a better solution than using gdb's gcore utility: http://man7.org/linux/man-pages/man1/gcore.1.html