javascript - nodejs createWriteStream 嵌套在 for

Question

我需要生成大量的字符串值组合，数十亿行，并将它们全部写入一个大文件中的磁盘，而不会阻止进程。

目前，它一直有效，直到文件写入缓冲区被填满，对于少量单词列表，当我尝试使用大量记录时，输出文件仍然为空。

const fs = require('fs');

const words = fs.readFileSync('./1024words.txt').toString().split("\n");
//create array of 1024 words

let fileout
    , row = ''
    , wordA, wordB, wordC
    , totRows = Math.pow(words.length,3)*3  //combination of 3 words for 3 columns of output
    , count = 0;

for (let indexA = 0; indexA < words.length; indexA++) {
    wordA = words[ indexA ];

    fileout = fs.createWriteStream(`${wordA}.csv`); //new output file

    for (let indexB = 0; indexB < words.length; indexB++) {
        wordB = words[ indexB ];

        for (let indexC = 0; indexC < words.length; indexC++) {
            wordC = words[ indexC ];

            row = `${wordA} ${wordB} ${wordC}\n`;

            count++;

            process.stdout.write(`${count} of ${totRows} written: ${row}`);

            fileout.write(row);
        }
    }

    fileout.end();
    fileout.close();
}