Question

查看任务管理器我看到我的node.js进程的内存使用量不断增加 - 因此内存泄漏。我正在通过递归实现一个循环，这可能是原因吗？

以下代码执行以下操作：

通过生成器函数从平面文件中提取大约64KB到batch变量
批次由行组成 - 每行迭代地从64kb批处理中检索
每行都有x个转换应用
每批通过网络发送

batch变量是否可能等到递归链解析后再被GC清理？

await (async function nextBatch() {
    const batch = batches.next();
    const payload = [];
    if (batch.done) return;
    const values = batch.value;

    await asyncForEach(values, async(item) => {
        await asyncForEach(transformations, async(t) => {
            item = await t.transform.call(t, item);
        });
        if (item !== {} && item) payload.push(item);
    });

    const loadResult = await load.batch(payload);

    await nextBatch();
})();

我收到以下错误：

<--- Last few GCs --->

[21760:0000020D47008EF0]   935709 ms: Mark-sweep 1406.7 (1472.4) -> 1406.5 (1444.4) MB, 380.6 / 0.0 ms  (+ 0.0 ms in 0 steps since start of marking, biggest step 0.0 ms, walltime since start of marking 381 ms) last resort GC in old space requested
[21760:0000020D47008EF0]   936051 ms: Mark-sweep 1406.5 (1444.4) -> 1406.5 (1444.4) MB, 341.2 / 0.0 ms  last resort GC in old space requested


<--- JS stacktrace --->

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

Security context: 000002D779C25EE1 <JSObject>
    2: new constructor(aka Parser) [C:\MSc\Thesis\netl\node_modules\csv-parse\lib\index.js:167] [bytecode=000002935CBD0F09 offset=452](this=0000014FD4695319 <Parser map = 000001D4E8BB1749>,/* anonymous */=0000034EC0F9C829 <Object map = 000001D4E8BAB341>)
    5: /* anonymous */ [C:\MSc\Thesis\netl\node_modules\csv-parse\lib\sync.js:20] [bytecode=000002935CBD0599 offset=114](this=0000011FD4F8BF9...

FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - JavaScript heap out of memory
 1: node_module_register
 2: v8::internal::FatalProcessOutOfMemory
 3: v8::internal::FatalProcessOutOfMemory
 4: v8::internal::Factory::SetClassFunctionInstanceDescriptor
 5: v8::internal::Factory::NewFunction
 6: v8::internal::Factory::NewFunctionFromSharedFunctionInfo
 7: v8::internal::Factory::NewFunctionFromSharedFunctionInfo
 8: v8::internal::compiler::Pipeline::AllocateRegistersForTesting
 9: 00000362273847A1

在清理功能范围的变量之前，GC是否等待递归链解析？

0 个答案: