Re: SOP for WebDNA talk - MSNBot Crashing
This WebDNA talk-list message is from 2004
It keeps the original formatting.
numero = 57816
interpreted = N
texte = On 5/13/04 3:13 PM, "Alain Russell"
wrote: > I don't mean to cause trouble here but I can't remember the lsat time I > saw WebDNA crash .. not even under heavy load .. > The first thing I would look for here is some bad code .. code that > expects a cart to be passed, eg - what happens if you call the page > with no cart= ? > > I just don't buy the webDNA crashing line anymore .. > > Alain > > > On 14/05/2004, at 6:59 AM, Paul Uttermohlen wrote: > Oh. You believe that webcat can be crashed, just that it doesn't crash on its own. I sent a sample crash log to Scott last week. He confirmed that crash was real and it was related to shopping carts. As he suggested, I cleared out the shopping carts folder which included thousands of shopping carts created by MSNBot. After restarting and filtering out traffic from MSNBot the crashing stopped. The crashing is definitely related to the MSNBot traffic. MSNBot is a beta crawler and they are actively developing it. I initially filtered out the MSNBot traffic based on the cart number MSN was sending in their requests. The first 16 numbers were the same... All the time. But the numbers were hundreds of characters long. Numerous sets of random numbers were appended to the end of a normal cart number. I filtered out all file requests where the cart value was longer than 25 characters. MSNBot started sending requests with cart values that contained spaces, dashes, slashes, letters, and the one I liked the most and saved was a flipped "R" in a box. No normal traffic crashes webcatalog on this server. Why should traffic from MSNBot crash it? Normal traffic does not create a cart for each hit. Normal carts do not result in filenames that are hundreds of characters long. I suspect that a fix in webdna could stop this crashing. Paul ________________________________________________________ Paul Uttermohlen http://www.Anoweb.com/ http://www.Uttermohlen.com/ Paul@Anoweb.com Columbus, Ohio 43026 614-529-8963 _______________________________________________________ ------------------------------------------------------------- This message is sent to you because you are subscribed to the mailing list . To unsubscribe, E-mail to: To switch to the DIGEST mode, E-mail to Web Archive of this list is at: http://webdna.smithmicro.com/
Associated Messages, from the most recent to the oldest:
On 5/13/04 3:13 PM, "Alain Russell" wrote: > I don't mean to cause trouble here but I can't remember the lsat time I > saw WebDNA crash .. not even under heavy load .. > The first thing I would look for here is some bad code .. code that > expects a cart to be passed, eg - what happens if you call the page > with no cart= ? > > I just don't buy the webDNA crashing line anymore .. > > Alain > > > On 14/05/2004, at 6:59 AM, Paul Uttermohlen wrote: > Oh. You believe that webcat can be crashed, just that it doesn't crash on its own. I sent a sample crash log to Scott last week. He confirmed that crash was real and it was related to shopping carts. As he suggested, I cleared out the shopping carts folder which included thousands of shopping carts created by MSNBot. After restarting and filtering out traffic from MSNBot the crashing stopped. The crashing is definitely related to the MSNBot traffic. MSNBot is a beta crawler and they are actively developing it. I initially filtered out the MSNBot traffic based on the cart number MSN was sending in their requests. The first 16 numbers were the same... All the time. But the numbers were hundreds of characters long. Numerous sets of random numbers were appended to the end of a normal cart number. I filtered out all file requests where the cart value was longer than 25 characters. MSNBot started sending requests with cart values that contained spaces, dashes, slashes, letters, and the one I liked the most and saved was a flipped "R" in a box. No normal traffic crashes webcatalog on this server. Why should traffic from MSNBot crash it? Normal traffic does not create a cart for each hit. Normal carts do not result in filenames that are hundreds of characters long. I suspect that a fix in webdna could stop this crashing. Paul ________________________________________________________ Paul Uttermohlen http://www.Anoweb.com/ http://www.Uttermohlen.com/ Paul@Anoweb.com Columbus, Ohio 43026 614-529-8963 _______________________________________________________ ------------------------------------------------------------- This message is sent to you because you are subscribed to the mailing list . To unsubscribe, E-mail to: To switch to the DIGEST mode, E-mail to Web Archive of this list is at: http://webdna.smithmicro.com/
Paul Uttermohlen
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