Load balancing method, load balancer and system thereof

A load balancer and load balancing technology, applied in the computer field, can solve the problems of single server overload, session loss load, other servers being idle, etc., to achieve the effect of solving session loss and load imbalance, and achieving load balancing
CN103607356AInactive Publication Date: 2014-02-26BEIJING QIHOO TECH CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING QIHOO TECH CO LTD
Publication Date
2014-02-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a load balancing method, a load balancer and a system thereof. The method comprises: when a request form a client is received, a session Id is obtained from the request; and a server corresponding to the session Id is searched in a session list and the request is sent to the server, wherein a server address corresponding to the session Id is preserved in the session list. According to the technical scheme, the session Id is obtained in the request from the client and the corresponding server is determined by using the session Id, thereby ensuring that no interruption occurs during the session process. Moreover, load balancing is realized; and thus problems that session may be lost or the load is not balanced in the prior art can be solved and the beneficial effect of load balancing realization on the premise of session keeping is realized.
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Description

technical field

[0001] The invention relates to the technical field of computers, in particular to a load balancing method, a load balancer and a system. Background technique

[0002] After the introduction of cluster technology, load balancing, as the core of cluster technology, has received extensive attention and research. Load balancing must not only ensure that the load between back-end servers is equal, but also correctly allocate requests for the same session in scenarios that require session retention. to the corresponding backend server to ensure that the session between the client and the backend server is not lost.

[0003] LVS (Linux Virtual Server, Linux Virtual Server) is an open source load balancing technology. By inserting the call method at the detection point (HOOK) point of Netfilter (Network Screening System), the IP (Internet Protocol, the protocol for interconnection between networks) ) layer realizes the transparent forwarding of data packets. LVS m...

Claims

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