一次node文件操作过多排查过程总结

for(var i=0; i<200000; i++) {
    fq.readFile('./somefile.txt', {encoding: 'utf8'}, function(err, somefile) {
        console.log("data from somefile.txt without crashing!", somefile);
    });
}

var FileQueue = require('filequeue');
var fq = new FileQueue(100);

// additional instances will attempt to use the same instance (and therefore the same maxfiles)

var FileQueue2 = require('filequeue');
var fq2 = new FileQueue2(100);

console.log(fq === fq2); // => true

// you can force a new instance of filequeue with the `newQueue` parameter

var fq3 = new FileQueue(100, true);

console.log(fq === fq3); // => false

var FileQueue = require('filequeue');
var fq = new FileQueue(100); // 限制每次打开的文件数量

for(var i=0; i<200000; i++) {
    fq.readFile('./demo.txt', {encoding: 'utf8'}, function(err, somefile) {
        console.log("data from somefile.txt without crashing!", somefile);
    });
}