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  #1  
Old March 23rd, 2005, 11:31 AM
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65.214.44.138 crashed my site twice

last night the ask bot came to my site and hit it about 600 times in about 10 seconds. It basically brought my site down. Has anyone experienced this or know why this would of happenned?

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  #2  
Old March 23rd, 2005, 02:35 PM
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I'd disabled AJ (through robots.txt) more time ago A lot of bandwidth each month (10G+) but 1-10 visitors

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  #3  
Old March 23rd, 2005, 06:02 PM
mick.sawyer mick.sawyer is offline
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Use you robots file to slow it down a bit

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  #4  
Old March 24th, 2005, 08:05 AM
TheWebJunkie TheWebJunkie is offline
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Aj visted my site alot in the past 2 days also, but not enough to take it down.

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Old March 27th, 2005, 05:51 AM
IrishCoffee IrishCoffee is offline
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Quote:
Originally Posted by mick.sawyer
Use you robots file to slow it down a bit

I've been looking for this info for some time now. How can you do that?

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  #6  
Old March 27th, 2005, 05:59 AM
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http://sp.ask.com/docs/about/tech_crawling.html

More to the point, have these lines of text in your robots.txt file in the root of your domain:

User-agent: Teoma
Disallow: /

Note that Teoma/Ask Jeeves obey the Allow: command (to override previously disallowed pages to be spidered after all)

Also note that this wil stop Teoma/AskJeeves spidering ANY of your pages. If you don't want that, then use other rules, or don't use this.

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  #7  
Old March 27th, 2005, 06:06 AM
IrishCoffee IrishCoffee is offline
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Quote:
Q: Can I control the crawler request rate from Teoma spider to my site?

A: Yes. We support the "Crawl-Delay" robots.txt directive. Using this directive you may specify the minimum delay between two successive requests from our spider to your site.

I think this is what I've been looking for.

q1. What should be the minimum delay?

q2. Is there any example of robots.txt for this particular directive?

q2.2. Is there any example of robots.txt for Ask/Teoma?

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  #8  
Old March 27th, 2005, 06:11 AM
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In that case:

User-agent: Teoma
Crawl-delay: 300
#value in seconds

...might be in order. Use the value you think seems fair.

In fact you might want to have this for all bots:

User-agent: *
Crawl-delay: 20

Most don't obey that rule, but Yahoo's Slurp - for example - does.

Only use it if you're having bandwidth problems though...




Furthermore, you might want to wait till LowLevel chimes in. He knows a lot more about robots.txt than I do

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  #9  
Old March 27th, 2005, 06:18 AM
IrishCoffee IrishCoffee is offline
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q1. robots.txt is not case sensitive right?

q2.
Quote:
User-agent: Teoma
Crawl-delay: 300
#value in seconds

300 seconds seems awfully long. Also bandwidth is not a problem to me, but how fast do Google and Yahoo crawl? I'd like to set the number so that Ask/Teomo crawls slightly more slowly that these two.

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  #10  
Old March 27th, 2005, 06:27 AM
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Hehe - don't ask ME how quickly Gbot crawls. I'm not the average player here

When Gbot DOES come to visit, it hits my pages every three seconds on average. Sometimes more than one file a second.

But if you set the crawl delay to 1 second, you may end up with AJ/Teoma visiting your pages every second. What good will that do?

I'd devide my average site update interval by the number of my pages, and divide by two again, and use that. Unless that's greater than 300 (which in my case it probably is - LOL).

Anyway, bot frequencies can be found in your bare logs. Lots of info in there, but even more non-info....

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  #11  
Old March 27th, 2005, 06:36 AM
IrishCoffee IrishCoffee is offline
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Quote:
Originally Posted by Wit
When Gbot DOES come to visit, it hits my pages every three seconds on average. Sometimes more than one file a second.

But if you set the crawl delay to 1 second, you may end up with AJ/Teoma visiting your pages every second. What good will that do?

3 seconds sounds reasonable to me. Ask/Teoma did cause some problem, but Google never did. Neither did Yahoo. So, I'm guessing that, as long as I let Ask/Teoma to slow down to the point that it crawls slightly more slowly than Google and Yahoo, I think the problem will be resolved.

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  #12  
Old March 27th, 2005, 08:50 AM
subsoft subsoft is offline
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Quote:
Originally Posted by TheWebJunkie
Aj visted my site alot in the past 2 days also, but not enough to take it down.


Same here

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  #13  
Old March 30th, 2005, 05:24 PM
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I had a crawler crash my site like that once. Turned out to be my fault, since I had an error in my .htaccess file that resulted in a recursive redirect. I would check your server logs and see if the same URL is being requested over and over, and if so then you might have a similar problem.

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  #14  
Old March 30th, 2005, 05:48 PM
IrishCoffee IrishCoffee is offline
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Quote:
Originally Posted by rgeimer
I would check your server logs and see if the same URL is being requested over and over, and if so then you might have a similar problem.

How can you find this?

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  #15  
Old March 30th, 2005, 10:01 PM
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Irish...contact your hosting company, or read your hosting company's FAQs about where your log files are. If the host doesn't provide you with a log analysis tool, then you can always pick up an inexpensive one like bothunter.

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