My ISP called and said my nutch crawler is chewing up 20mbits on a line he's only supposed to be using 10. Is there an easy way to tinker with how much bandwidth we're using at once? I know we can change the number of open threads the crawler has, but it seems to me this won't make a huge difference. If I chop the number of open threads in half, it'll just download half the pages, twice as fast? I stand to be corrected on this.

Any other thoughts? doesn't have to be correct or elegant as long as it works. Failing a reasonable solution in nutch, is there some sort of linux level tool that will easily allow me to throttle how much bandwidth the crawl is using at once?

Thanks.




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