您的for
週期會阻止事件循環。並且它不能去nextTick
並處理查詢結果,直到所有查詢發送到mongodb
。您需要使用異步方式批量插入數據。 類似這樣的:
var mongo = require('mongodb');
var Inserter = function (collection) {
this.collection = collection;
this.data = [];
this.maxThreads = 6;
this.currentThreads = 0;
this.batchSize = 5000;
this.queue = 0;
this.inserted = 0;
this.startTime = Date.now();
};
Inserter.prototype.add = function(data) {
this.data.push(data);
};
// Use force=true for last insert
Inserter.prototype.insert = function(force) {
var that = this;
if (this.data.length >= this.batchSize || force) {
if (this.currentThreads >= this.maxThreads) {
this.queue++;
return;
}
this.currentThreads++;
console.log('Threads: ' + this.currentThreads);
this.collection.insert(this.data.splice(0, this.batchSize), {safe:true}, function() {
that.inserted += that.batchSize;
var currentTime = Date.now();
var workTime = Math.round((currentTime - that.startTime)/1000)
console.log('Speed: ' + that.inserted/workTime + ' per sec');
that.currentThreads--;
if (that.queue > 0) {
that.queue--;
that.insert();
}
});
}
};
var db = new mongo.Db('test', new mongo.Server('localhost', 27017, {}), {native_parser:false});
db.open(function(err, db) {
db.collection('test', function(err, collection) {
var inserter = new Inserter(collection);
setInterval(function() {
for (var i = 0; i < 5000; i++) {
inserter.add({test:'test'});
}
inserter.insert();
}, 0);
});
});
你知道這不是批量插入嗎? – soulcheck
我不知道節點如何管理這個,但是你在這裏創建了100萬個閉包。這可能會有點沉重嗎? – Thilo