node-example-heapdump
MIT License
Stars
14
Ecosystems:
JavaScript
Heap Snapshot exercise
Prepare
Before you try the exercises, please run
npm install
Note, some of the dependencies there are pinned to old versions so that they produce the memory leak you are here to find.
Getting a heap snapshot
- Run
npm start - Open http://localhost:8080
- Now try implementing getting a heap snapshot through a http request and prove a leak exists.
Finding a real issue
Now let's look at a real case of a memory leak. Still a pretty naive one, but one that at least looks realistically.
- Run
npm run real - Open http://localhost:8080
- Get two heap snapshots
- Find the leak, trace it to a properly named object that you can find, locate the code responsible for leaking (or at least the file).
Spoilers
If you're ready to give up, try again and then look at spoilers.txt