Invention Grant
US08667120B2 Load control device and method thereof for controlling requests sent to a server
有权
负载控制装置及其方法,用于控制发送到服务器的请求
- Patent Title: Load control device and method thereof for controlling requests sent to a server
- Patent Title (中): 负载控制装置及其方法,用于控制发送到服务器的请求
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Application No.: US12298574Application Date: 2007-04-25
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Publication No.: US08667120B2Publication Date: 2014-03-04
- Inventor: Ryosuke Kurebayashi , Osamu Ishida , Satoru Ota , Tsunemasa Hayashi , Kazuaki Obana
- Applicant: Ryosuke Kurebayashi , Osamu Ishida , Satoru Ota , Tsunemasa Hayashi , Kazuaki Obana
- Applicant Address: JP
- Assignee: Nippon Telegraph and Telephone Corporation
- Current Assignee: Nippon Telegraph and Telephone Corporation
- Current Assignee Address: JP
- Agency: Kilpatrick Townsend & Stockton LLP
- Priority: JP2006-122196 20060426; JP2006-183392 20060703; JP2006-277864 20061011
- International Application: PCT/JP2007/058918 WO 20070425
- International Announcement: WO2007/125942 WO 20071108
- Main IPC: G06F15/16
- IPC: G06F15/16 ; G06F15/173 ; G06F15/177 ; H04L12/56 ; H04L12/24 ; H04L12/26

Abstract:
The number of response-waiting requests which are already sent to a server (4) but to which a response is not yet returned from the server (4) is limited. To limit this number, received requests are temporarily accumulated in a buffer if the number of response-waiting requests has reached a threshold and, until the number of response-waiting requests falls below the threshold, requests are not sent from the buffer. The execution status of the server (4) is monitored, and the threshold is increased when the response time from the server (4) to a request is within an allowable range, and the threshold is decreased when the response time exceeds the allowable range. In addition, TCP connections between a load control device (3) and clients (1-1, . . . , 1-n) are aggregated so that the number of simultaneous connections of TCP connections between the server (4) and the load control device (3) becomes equal to or smaller than the threshold of the number of response-waiting requests.
Public/Granted literature
- US20090077233A1 Load Control Device and Method Thereof Public/Granted day:2009-03-19
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