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From Ram Ganesh <>
Subject RE: [DISCUSS]API request throttling
Date Thu, 20 Dec 2012 09:23:18 GMT
How do we characterize the behaviour for a UI/self-service portal user? A single UI screen
can result anywhere from 1 to N API requests. Would it not lead CloudStack to some inconsistent
state? What if the UI configuration spans time duration window?


> -----Original Message-----
> From: Min Chen []
> Sent: 20 December 2012 00:19	
> To:
> Subject: [DISCUSS]API request throttling
> Hi all,
> Currently, the legitimate users of CloudStack can occasionally hammer
> the server with heavy API requests that cause undesirable results, like
> killing the server, performance issues for other CloudStack users.
> Also, it may become a mechanism for certain malicious users to do
> malicious attacks to CloudStack service to cause cloud outage. To
> prevent certain things happen, we would like to introduce  API request
> throttling feature to limit number of APIs that can be placed by each
> account within certain time duration and will block API requests if the
> account is over the limit so that he/she have to retry later. The
> detailed FS can be found at
> ttling.
> Please let me know any comments and suggestions.
> Thanks
> -min

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