Yahoo Spiders mental?

[sujith.it]

Ok, I know they can go quite crazy and I usually have around 300 on my forum.

However I checked today, and they have suddenly jumped to 1100!

Is it normal?
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[snowbird]

Yahoo does that. On some of my sites Yahoo has crawled over 4 times the pages that Google has crawled. If you server can handle it, then there should be no issue. But if your server gets bogged down, you may want to limit Yahoo's crawl rate.