python爬虫 - 最近在用python分布式爬虫,使用的是scrapy框架,采用主从模式?
巴扎黑
巴扎黑 2017-04-17 15:59:45
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Master和sleeve之间需要协作通信,而实现协作通信需要用到jsonRPC,在网上看了一些这方面的内容,
一、需要安装jsonrpc-scrapy
二、在程序中导入相应的包
三、协作通信主要是通过http来实现
现在有一个master,多个sleeve,master相当于服务器,而sleeve相当于爬虫的节点,来实现具体的爬虫任务。
分布式实现涉及任务的调度,以及任务的分配,但整体还是不太清楚协作通信是如何实现的

巴扎黑
巴扎黑

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黄舟

I’ve been learning this recently, but I haven’t achieved distributed implementation yet.

Up to google搜索了一下,恰巧也用到了redis, I was also asked this question during the interview before.

Refer to these two blog posts, I hope it will be helpful to you. I feel that the first one is more referenceable.

A distributed web crawler implemented using scrapy, redis, and mongodb

How to get started with Python crawler?

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