発端
npm run buildコマンドを実行すると、
スワップ領域が約2GBあり、ほぼ使われていなかったので問題無さそうだけど下記エラーが表示された。
FATAL ERROR: Reached heap limit Allocation failed - JavaScript heap out of memory
----- Native stack trace -----
1: 0xe36196 node::OOMErrorHandler(char const*, v8::OOMDetails const&) [node]
2: 0x123f4a0 v8::Utils::ReportOOMFailure(v8::internal::Isolate*, char const*, v8::OOMDetails const&) [node]
3: 0x123f777 v8::internal::V8::FatalProcessOutOfMemory(v8::internal::Isolate*, char const*, v8::OOMDetails const&) [node]
4: 0x146d1a5 [node]
5: 0x1486a19 v8::internal::Heap::CollectGarbage(v8::internal::AllocationSpace, v8::internal::GarbageCollectionReason, v8::GCCallbackFlags) [node]
6: 0x145b0e8 v8::internal::HeapAllocator::AllocateRawWithLightRetrySlowPath(int, v8::internal::AllocationType, v8::internal::AllocationOrigin, v8::internal::AllocationAlignment) [node]
7: 0x145c015 v8::internal::HeapAllocator::AllocateRawWithRetryOrFailSlowPath(int, v8::internal::AllocationType, v8::internal::AllocationOrigin, v8::internal::AllocationAlignment) [node]
8: 0x1434cee v8::internal::Factory::NewFillerObject(int, v8::internal::AllocationAlignment, v8::internal::AllocationType, v8::internal::AllocationOrigin) [node]
9: 0x18962ec v8::internal::Runtime_AllocateInYoungGeneration(int, unsigned long*, v8::internal::Isolate*) [node]
10: 0x1df2476 [node]
中止 (コアダンプ)
下記コマンドでNode.jsのヒープメモリ制限を確認すると、結果は396MBだった。
node -e 'console.log(Math.floor(v8.getHeapStatistics().heap_size_limit/1024/1024))'
解決
下記コマンドを実行し、一時的にメモリを約1GB（スワップ領域の半分）使うよう設定したら、無事ビルドできた。
NODE_OPTIONS="--max-old-space-size=1024" npm run build