Node.js堆内存不足

今天，我运行了文件系统索引的脚本来刷新RAID文件索引，4h后它崩溃了，出现以下错误:

[md5:]  241613/241627 97.5%  
[md5:]  241614/241627 97.5%  
[md5:]  241625/241627 98.1%
Creating missing list... (79570 files missing)
Creating new files list... (241627 new files)

<--- Last few GCs --->

11629672 ms: Mark-sweep 1174.6 (1426.5) -> 1172.4 (1418.3) MB, 659.9 / 0 ms [allocation failure] [GC in old space requested].
11630371 ms: Mark-sweep 1172.4 (1418.3) -> 1172.4 (1411.3) MB, 698.9 / 0 ms [allocation failure] [GC in old space requested].
11631105 ms: Mark-sweep 1172.4 (1411.3) -> 1172.4 (1389.3) MB, 733.5 / 0 ms [last resort gc].
11631778 ms: Mark-sweep 1172.4 (1389.3) -> 1172.4 (1368.3) MB, 673.6 / 0 ms [last resort gc].


<--- JS stacktrace --->

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

Security context: 0x3d1d329c9e59 <JS Object>
1: SparseJoinWithSeparatorJS(aka SparseJoinWithSeparatorJS) [native array.js:~84] [pc=0x3629ef689ad0] (this=0x3d1d32904189 <undefined>,w=0x2b690ce91071 <JS Array[241627]>,L=241627,M=0x3d1d329b4a11 <JS Function ConvertToString (SharedFunctionInfo 0x3d1d3294ef79)>,N=0x7c953bf4d49 <String[4]\: ,\n  >)
2: Join(aka Join) [native array.js:143] [pc=0x3629ef616696] (this=0x3d1d32904189 <undefin...

FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - JavaScript heap out of memory
 1: node::Abort() [/usr/bin/node]
 2: 0xe2c5fc [/usr/bin/node]
 3: v8::Utils::ReportApiFailure(char const*, char const*) [/usr/bin/node]
 4: v8::internal::V8::FatalProcessOutOfMemory(char const*, bool) [/usr/bin/node]
 5: v8::internal::Factory::NewRawTwoByteString(int, v8::internal::PretenureFlag) [/usr/bin/node]
 6: v8::internal::Runtime_SparseJoinWithSeparator(int, v8::internal::Object**, v8::internal::Isolate*) [/usr/bin/node]
 7: 0x3629ef50961b

服务器配置16gb RAM和24gb SSD交换盘。我非常怀疑我的脚本内存超过了36gb。至少不应该是这样

脚本创建文件索引存储为对象数组与文件元数据(修改日期，权限等，没有大数据)

以下是完整的脚本代码: http://pastebin.com/mjaD76c3

我已经经历了奇怪的节点问题在过去与这个脚本迫使我eg。分割索引到多个文件作为节点是故障时，工作在这样的大文件字符串。对于庞大的数据集，有什么方法可以改善nodejs的内存管理吗?

当前回答

如果内存或RAM有限，则执行以下命令。

的发球 --源映射=假

它将能够启动应用程序。在我的例子中，它需要16gb内存。但我可以用8gb内存运行。

2021-06-08 16:18:01

其他回答

使用这个选项——优化大小。它将专注于使用更少的内存。

2021-05-02 01:15:52

如果内存或RAM有限，则执行以下命令。

的发球 --源映射=假

它将能够启动应用程序。在我的例子中，它需要16gb内存。但我可以用8gb内存运行。

2021-06-08 16:18:01

我将提到两种解决方案。

我的解决方案:在我的例子中，我将这个添加到我的环境变量:

export NODE_OPTIONS=--max_old_space_size=20480

但是即使我重新启动我的电脑，它仍然不能工作。我的项目文件夹在d:\ disk。所以我把我的项目移到c:\ disk，它工作了。

我队友的解决方案是:打包。Json配置也工作。

"start": "rimraf ./build && react-scripts --expose-gc --max_old_space_size=4096 start",

2021-08-10 13:09:05

你可以通过以下方法修复Node.js中的“堆出内存”错误。

Increase the amount of memory allocated to the Node.js process by using the --max-old-space-size flag when starting the application. For example, you can increase the limit to 4GB by running node --max-old-space-size=4096 index.js. Use a memory leak detection tool, such as the Node.js heap dump module, to identify and fix memory leaks in your application. You can also use the node inspector and use chrome://inspect to check memory usage. Optimize your code to reduce the amount of memory needed. This might involve reducing the size of data structures, reusing objects instead of creating new ones, or using more efficient algorithms. Use a garbage collector (GC) algorithm to manage memory automatically. Node.js uses the V8 engine's garbage collector by default, but you can also use other GC algorithms such as the Garbage Collection in Node.js Use a containerization technology like Docker which limits the amount of memory available to the container. Use a process manager like pm2 which allows to automatically restart the node application if it goes out of memory.

2023-01-12 16:00:59

如果你想更改节点(windows)的全局内存，请进入高级系统设置->环境变量->新用户变量

variable name = NODE_OPTIONS
variable value = --max-old-space-size=4096

2019-09-23 14:38:18

Node.js堆内存不足

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