Hello. We are running our NodeJs application which creates considerable memory pressure. We acquired a large server, however, NodeJs caps memory usage at 16GB regardless of settings (--max-old-space-size=30000). We tried different instances, with docker (AWS Linux) or without (Ubuntu 22), but the cap stays the same. It is a 64-bit version of Node (otherwise, it would have capped at ~4GB). We've tried Node versions 18.15, 18.19, 20.11. Interestingly, locally on a dev-machine (MacOS, 16GB RAM) it manages to occupy 18GB+ (although it takes nearly forever because of swapping) and doesn't crash.
The error we are observing on AWS server is
terminate called after throwing an instance of 'std::bad_alloc'
what(): std::bad_alloc
Any hint is appreciated that would point to a new direction in this investigation
Thank you for looking into this. I've created a test script that recreates the problem. There are no leaks (unless in V8). I intentionally use more than 16GB of memory inside the test script. It runs fine on a local machine under MacOS and fails on AWS as soon as 16GB is reached