decentraland / builder-server / 27349142186

71%

master: 71%

Pull #805

github

fix: cap V8 heap explicitly to prevent OOM under Node 24

Node 24 ships libuv >= 1.45, which (unlike the libuv 1.44 in Node 18)
correctly reads cgroup v2 memory limits. As a result Node now sizes the
default old-space heap to ~50% of the container limit instead of falling
back to host physical memory, leaving the service's working set above the
new, smaller ceiling and triggering "Reached heap limit" OOM crashes.

Set --max-old-space-size=1536 (~75% of the 2 GB container) so V8's heap
ceiling is deterministic and independent of auto-detection, while leaving
headroom for off-heap memory.

Also drop the --inspect="0.0.0.0:9229" flag, which exposed the V8
debugger (a remote-code-execution vector) on all network interfaces in
production.

1375 of 2151 branches covered (63.92%)

Branch coverage included in aggregate %.

3257 of 4343 relevant lines covered (74.99%)

41.75 hits per line