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From "Shapira, Yoav" <>
Subject RE: how to block
Date Thu, 06 Feb 2003 18:16:17 GMT
Google is your friend:

Yoav Shapira
Millennium ChemInformatics

>-----Original Message-----
>From: Bing Zhang []
>Sent: Thursday, February 06, 2003 1:10 PM
>To: 'Tomcat Users List'
>Cc: Dan Yin; Jimmy Wu; Daniel Ruiz
>Subject: how to block
>Hi all:
>	I have one problem right now, which many people here on the list
>should have already experienced.
>	For example, some post from browser take some time on the server
>side(servlet code) to process.  Often times impatient user will click
>multiple times on the "submit" button, Or "malicious" user will hold
>key to request it million times.  What's going to happen on the server
>is:  multiple threads onto the same servlet would be launched and
>would be used up, like connections, and CPU processing time.
>      So what's a general approach to prevent this ??  No matter the
>solution is on the client side (HTML/JavaScript), the server
>side(servlet/JSP), or combined.  Can you guys pass some experience,
>thoughts on this ??
>	Thank you so much.
>	Bing
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