Initializing JS/TS librarys spin endless. Logs says out of memory. How can I increase it?

[diegosucaria]

Title says almost everything... I'm working with a microservices project and there is a lot of them, so when I open the project, the message "Initializing JS/TS Language features" spins forever.

I enabled debug logs and I see "Javascript heap out of memory"

I think this could be the reason, but the question is, where can I increase js memory?

I'm running on a 16gb vm, so there is enough memory, but I cannot find the setting to allow code-server, vscode to use it.

Any ideas?

0: ExitFrame [pc: 0x13cf019]
Security context: 0x260754c008d1 <JSObject>
    1: g(aka g) [0x2e2dceae5951] [/var/lib/code-server/extensions/ecmel.vscode-html-css-0.2.3/dist/extension.js:~127] [pc=0x2b5995ae7f0f](this=0x154acbf404b1 <undefined>,0x1220d9324531 <String[86]: /root/projects/ui/frontend/node_modules/tailwindcss/dist/utilities.min.css>,0x093779e2f161 <JSArray[20639]>)
    2: /* anonymous */ [0x34437c9a1f71] [/var/...


[2020-09-18 16:08:30.498] [remoteagent] [error] Extension host stderr FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out of memory

[2020-09-18 16:08:30.498] [remoteagent] [error] Extension host stderr  1: 0xa093f0 node::Abort() [/usr/lib/code-server3/lib/node]

[2020-09-18 16:08:30.499] [remoteagent] [error] Extension host stderr  2: 0xa097fc node::OnFatalError(char const*, char const*) [/usr/lib/code-server3/lib/node]

[2020-09-18 16:08:30.500] [remoteagent] [error] Extension host stderr  3: 0xb842ae v8::Utils::ReportOOMFailure(v8::internal::Isolate*, char const*, bool) [/usr/lib/code-server3/lib/node]

[2020-09-18 16:08:30.500] [remoteagent] [error] Extension host stderr  4: 0xb84629 v8::internal::V8::FatalProcessOutOfMemory(v8::internal::Isolate*, char const*, bool) [/usr/lib/code-server3/lib/node]

[2020-09-18 16:08:30.501] [remoteagent] [error] Extension host stderr  5: 0xd30fe5  [/usr/lib/code-server3/lib/node]

[2020-09-18 16:08:30.502] [remoteagent] [error] Extension host stderr  6: 0xd31676 v8::internal::Heap::RecomputeLimits(v8::internal::GarbageCollector) [/usr/lib/code-server3/lib/node]

[2020-09-18 16:08:30.502] [remoteagent] [error] Extension host stderr  7: 0xd3def5 v8::internal::Heap::PerformGarbageCollection(v8::internal::GarbageCollector, v8::GCCallbackFlags) [/usr/lib/code-server3/lib/node]

[2020-09-18 16:08:30.503] [remoteagent] [error] Extension host stderr  8: 0xd3eda5 v8::internal::Heap::CollectGarbage(v8::internal::AllocationSpace, v8::internal::GarbageCollectionReason, v8::GCCallbackFlags) [/usr/lib/code-server3/lib/node]

[2020-09-18 16:08:30.504] [remoteagent] [error] Extension host stderr  9: 0xd4185c v8::internal::Heap::AllocateRawWithRetryOrFail(int, v8::internal::AllocationType, v8::internal::AllocationOrigin, v8::internal::AllocationAlignment) [/usr/lib/code-server3/lib/node]

[2020-09-18 16:08:30.505] [remoteagent] [error] Extension host stderr 10: 0xd0e5ce v8::internal::Factory::NewMap(v8::internal::InstanceType, int, v8::internal::ElementsKind, int) [/usr/lib/code-server3/lib/node]

[2020-09-18 16:08:30.505] [remoteagent] [error] Extension host stderr 11: 0xf0510b v8::internal::Map::RawCopy(v8::internal::Isolate*, v8::internal::Handle<v8::internal::Map>, int, int) [/usr/lib/code-server3/lib/node]

[2020-09-18 16:08:30.506] [remoteagent] [error] Extension host stderr 12: 0xf05834 v8::internal::Map::CopyDropDescriptors(v8::internal::Isolate*, v8::internal::Handle<v8::internal::Map>) [/usr/lib/code-server3/lib/node]

[2020-09-18 16:08:30.507] [remoteagent] [error] Extension host stderr 13: 0xf05aa3 v8::internal::Map::CopyReplaceDescriptors(v8::internal::Isolate*, v8::internal::Handle<v8::internal::Map>, v8::internal::Handle<v8::internal::DescriptorArray>, v8::internal::Handle<v8::internal::LayoutDescriptor>, v8::internal::TransitionFlag, v8::internal::MaybeHandle<v8::internal::Name>, char const*, v8::internal::SimpleTransitionFlag) [/usr/lib/code-server3/lib/node]

[2020-09-18 16:08:30.508] [remoteagent] [error] Extension host stderr 14: 0xf062ea v8::internal::Map::CopyAddDescriptor(v8::internal::Isolate*, v8::internal::Handle<v8::internal::Map>, v8::internal::Descriptor*, v8::internal::TransitionFlag) [/usr/lib/code-server3/lib/node]

Also, CPU is at ~200%

[code-asher]

You can increase the memory Node is allowed to use by setting --max_old_space_size in NODE_OPTIONS. For example:

NODE_OPTIONS=--max_old_space_size=4096 code-server

The default is 2048.

[diegosucaria]

Yes, I've set the environment variable in the systemd service as follows:

...
Environment=NODE_OPTIONS=--max-old-space-size=8192
ExecStart=/usr/local/bin/code-server3 --log debug ...
Restart=always
...

But I still have the same problem

[code-asher]

I'm not 100% sure but you might need underscores instead of dashes.

The reason being we look for --max_old_space_size specifically and if it's not set we set it ourselves. So my theory is that when both are set as they would be in this case Node might be preferring the underscore version which would still be set to 2048.

Really though we shouldn't be trying to set the default at all and just let Node choose its own default.

[diegosucaria]

That worked!!!!! Now it starts and works fine!!

Thanksss!!!

For some reason, sadly, node is failing to choose its own default.

[code-asher]

Awesome!!! I'll see about removing our faulty default handling. Node's default is only around 2GB though so either way you'll probably need to keep the flag even after we fix it.