节点：致命错误：调用和重试上次分配失败-JavaScript堆内存不足

我正在生成一个大对象，并试图将它们安全地保存到一个

.json

文件中。但是，即使使用流式处理，对象似乎正在缓存堆，并且从未被释放

这就是我调用的函数：

saveObjectAsJSON (o: any, filename: string) {
    const content = JSON.stringify(o);
    const wstream = fs.createWriteStream(filename);
    wstream.write(content);
    wstream.end();
}

它适用于较小的对象，但我现在正在生成一个相当大的对象（外部级别大约有100万个对象）。这是否达到节点的容量和能力？我应该使用Mongo或其他东西来存储/检索它们吗

错误跟踪：

<--- Last few GCs --->

[6583:0x102801e00]   474566 ms: Mark-sweep 2948.9 (4039.7) -> 2948.8 (4024.7) MB, 6035.6 / 0.0 ms  allocation failure GC in old space requested
[6583:0x102801e00]   480764 ms: Mark-sweep 2948.8 (4024.7) -> 2948.8 (3993.7) MB, 6198.0 / 0.0 ms  last resort GC in old space requested
[6583:0x102801e00]   487025 ms: Mark-sweep 2948.8 (3993.7) -> 2948.8 (3963.7) MB, 6260.8 / 0.0 ms  last resort GC in old space requested
<--- JS stacktrace --->

==== JS stack trace =========================================

Security context: 0x934a4ba5529 <JSObject>
    1: fromString(aka fromString) [buffer.js:336] [bytecode=0x9340cbd6b51 offset=161](this=0x934c6e822d1 <undefined>,string=0x9350da7d189 <Very long string[936824012]>,encoding=0x934a4bb6419 <String[4]: utf8>)
    2: from [buffer.js:189] [bytecode=0x9340cbd6611 offset=14](this=0x934616bd3b1 <JSFunction Buffer (sfi = 0x934e8b83821)>,value=0x9350da7d189 <Very long string[936824012]>,encodingOrOffse...

FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - JavaScript heap out of memory
 1: node::Abort() [/usr/local/bin/node]
 2: node::FatalTryCatch::~FatalTryCatch() [/usr/local/bin/node]
 3: v8::internal::V8::FatalProcessOutOfMemory(char const*, bool) [/usr/local/bin/node]
 4: v8::internal::Factory::NewRawOneByteString(int, v8::internal::PretenureFlag) [/usr/local/bin/node]
 5: v8::internal::String::SlowFlatten(v8::internal::Handle<v8::internal::ConsString>, v8::internal::PretenureFlag) [/usr/local/bin/node]
 6: v8::String::WriteUtf8(char*, int, int*, int) const [/usr/local/bin/node]
 7: node::StringBytes::Write(v8::Isolate*, char*, unsigned long, v8::Local<v8::Value>, node::encoding, int*) [/usr/local/bin/node]
 8: node::Buffer::New(v8::Isolate*, v8::Local<v8::String>, node::encoding) [/usr/local/bin/node]
 9: node::Buffer::(anonymous namespace)::CreateFromString(v8::FunctionCallbackInfo<v8::Value> const&) [/usr/local/bin/node]
10: v8::internal::FunctionCallbackArguments::Call(void (*)(v8::FunctionCallbackInfo<v8::Value> const&)) [/usr/local/bin/node]
11: v8::internal::MaybeHandle<v8::internal::Object> v8::internal::(anonymous namespace)::HandleApiCallHelper<false>(v8::internal::Isolate*, v8::internal::Handle<v8::internal::HeapObject>, v8::internal::Handle<v8::internal::HeapObject>, v8::internal::Handle<v8::internal::FunctionTemplateInfo>, v8::internal::Handle<v8::internal::Object>, v8::internal::BuiltinArguments) [/usr/local/bin/node]
12: v8::internal::Builtin_Impl_HandleApiCall(v8::internal::BuiltinArguments, v8::internal::Isolate*) [/usr/local/bin/node]
13: 0x39ffa47042fd
14: 0x39ffa47bd196

[6583:0x102801e00]474566毫秒：标记扫描2948.9（4039.7）->2948.8（4024.7）MB，6035.6/0.0毫秒请求的旧空间中的GC分配失败
[6583:0x102801e00]480764毫秒：标记扫描2948.8（4024.7）->2948.8（3993.7）MB，6198.0/0.0毫秒请求旧空间中的最后一次GC
[6583:0x102801e00]487025毫秒：标记扫描2948.8（3993.7）->2948.8（3963.7）MB，6260.8/0.0毫秒请求的旧空间中的最后一次GC
==JS堆栈跟踪=========================================
安全上下文：0x934a4ba5529
1:fromString（又称fromString）[buffer.js:336][bytecode=0x9340cbd6b51 offset=161]（this=0x934c6e822d1，string=0x9350da7d189，encoding=0x934a4bb6419）
2:from[buffer.js:189][bytecode=0x9340cbd6611 offset=14]（this=0x934616bd3b1，value=0x9350da7d189，encodingOrOffse。。。
致命错误：调用和重试上次分配失败-JavaScript堆内存不足
1:node:：Abort（）[/usr/local/bin/node]
2:node:：FatalTryCatch:：~FatalTryCatch（）[/usr/local/bin/node]
3:v8:：internal:：v8:：FatalProcessOutOfMemory（char const*，bool）[/usr/local/bin/node]
4:v8:：internal:：Factory:：NewRawOneByteString（int，v8:：internal:：PreforeFlag）[/usr/local/bin/node]
5:v8:：internal:：String:：SlowFlatten（v8:：internal:：Handle，v8:：internal:：PreforeFlag）[/usr/local/bin/node]
6:v8:：String:：WriteUtf8（char*，int，int*，int）常量[/usr/local/bin/node]
7:node:：StringBytes:：Write（v8:：Isolate*，char*，无符号长，v8:：Local，node:：encoding，int*）[/usr/Local/bin/node]
8:node:：Buffer:：New（v8:：Isolate*，v8:：Local，node:：encoding）[/usr/Local/bin/node]
9:node:：Buffer:：（匿名命名空间）：：CreateFromString（v8:：FunctionCallbackInfo const&）[/usr/local/bin/node]
10:v8:：internal:：FunctionCallbackArguments:：Call（void（*）（v8:：FunctionCallbackInfo const&）[/usr/local/bin/node]
11:v8:：internal:：MaybeHandle v8:：internal:：（匿名命名空间）：：HandLeapIcalHelper（v8:：internal:：Isolate*，v8:：internal:：Handle，v8:：internal:：Handle，v8:：internal:：BuiltinArguments）[/usr/local/bin/node]
12:v8:：internal:：Builtin_Impl_HandleapCall（v8:：internal:：BuiltinaGuments，v8:：internal:：Isolate*）[/usr/local/bin/node]
13:0x39ffa47042fd
14:0x39ffa47bd196

外部级别大约有100万个对象

，需要数据库或键值store@JonasW.这只是为系统的另一部分生成一些测试数据；它只需要运行一次，仅此而已。如果可以对其进行优化以完成，但运行时间很长（甚至数小时），这是很好的.但也许Node作为一种语言在这方面做得不够好？也许你应该使用一个json序列化程序来输出一个流？听起来不错，我会查出来的。谢谢。