CRITICAL ISSUE: Mark-compact processes not performing effectively close to heap capacity

I encountered an error and I'm seeking a brief explanation to help me understand what needs to be fixed.

This error occurs during the compilation of TypeScript.



<--- Last few GCs --->

[1791:0x5533880]    72626 ms: Scavenge (reduce) 2042.8 (2082.2) -> 2042.1 (2082.5) MB, 10.0 / 0.0 ms  (average mu = 0.287, current mu = 0.243) allocation failure 
[1791:0x5533880]    74247 ms: Mark-sweep (reduce) 2043.0 (2082.5) -> 2037.5 (2082.5) MB, 1617.4 / 0.0 ms  (average mu = 0.225, current mu = 0.159) allocation failure scavenge might not succeed


<--- JS stacktrace --->

FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out of memory
 1: 0xb09c10 node::Abort() [/opt/hostedtoolcache/node/16.15.0/x64/bin/node]
 2: 0xa1c193 node::FatalError(char const*, char const*) [/opt/hostedtoolcache/node/16.15.0/x64/bin/node]
 3: 0xcf8dbe v8::Utils::ReportOOMFailure(v8::internal::Isolate*, char const*, bool) [/opt/hostedtoolcache/node/16.15.0/x64/bin/node]
 4: 0xcf9137 v8::internal::V8::FatalProcessOutOfMemory(v8::internal::Isolate*, char const*, bool) [/opt/hostedtoolcache/node/16.15.0/x64/bin/node]
 5: 0xeb09d5  [/opt/hostedtoolcache/node/16.15.0/x64/bin/node]
 6: 0xeb14b6  [/opt/hostedtoolcache/node/16.15.0/x64/bin/node]
 7: 0xebf9de  [/opt/hostedtoolcache/node/16.15.0/x64/bin/node]
 8: 0xec0420 v8::internal::Heap::CollectGarbage(v8::internal::AllocationSpace, v8::internal::GarbageCollectionReason, v8::GCCallbackFlags) [/opt/hostedtoolcache/node/16.15.0/x64/bin/node]
 9: 0xec339e v8::internal::Heap::AllocateRawWithRetryOrFailSlowPath(int, v8::internal::AllocationType, v8::internal::AllocationOrigin, v8::internal::AllocationAlignment) [/opt/hostedtoolcache/node/16.15.0/x64/bin/node]
10: 0xe848da v8::internal::Factory::NewFillerObject(int, bool, v8::internal::AllocationType, v8::internal::AllocationOrigin) [/opt/hostedtoolcache/node/16.15.0/x64/bin/node]
11: 0x11fd626 v8::internal::Runtime_AllocateInYoungGeneration(int, unsigned long*, v8::internal::Isolate*) [/opt/hostedtoolcache/node/16.15.0/x64/bin/node]
12: 0x15f2099  [/opt/hostedtoolcache/node/16.15.0/x64/bin/node]

Node.js : 16.15.0 TypeScript : 4.2.4

javascripttypescriptv8typescript-compiler-api

Answer №1

Your memory usage has reached approximately 2GB, and the garbage collector is struggling to release any memory. An allocation request requires more memory than is currently available, leading to a situation where a crash becomes the only viable solution.

Potential Solution 1: reduce memory consumption. The method to achieve this will vary depending on the nature of your application:

  • Consider clearing or reducing the size of any caches in use
  • Work with smaller data chunks or handle fewer concurrent requests
  • Explore more memory-efficient ways to represent your data
  • Identify and correct any memory leaks within your code, where objects are being held unnecessarily
  • There may be several other options to consider as well.

Potential Solution 2: increase Node's memory allocation using --max-old-space-size=3000 (or specify a value higher than the current/default limit in megabytes).

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