Cluster and control method for magnetic disk heartbeat of cluster

A control method and cluster technology, applied in the field of computer networks, can solve the problems of being vulnerable to hacker attacks, the cluster cannot work normally, the limited available length of serial cables, etc.

Active Publication Date: 2013-04-17
CHINA STANDARD SOFTWARE
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Problems solved by technology

However, the serial cable is limited by the available length, so the distance between two nodes in the cluster must be very short, and the serial cable corresponds to the serial port heartbeat
[0006] 2. Ethernet connection: using this method can eliminate the length limitation of the serial cable, and can synchronize the file system among the nodes through this connection, thereby reducing the bandwidth occupation of the normal communication connection, and the Ethe

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  • Cluster and control method for magnetic disk heartbeat of cluster
  • Cluster and control method for magnetic disk heartbeat of cluster
  • Cluster and control method for magnetic disk heartbeat of cluster

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[0033]The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention. It should be noted that, as long as there is no conflict, each embodiment and each feature in each embodiment of the present invention can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.

[0034] In addition, the steps shown in the flow diagrams of the figures may be performed in a computer system, such as a set of computer-executable instructions, and, although a logical order is shown in the flow diagrams, in some cases, the sequence may be different. The steps shown or described are performed in the order herein.

[0035] figure 1 is a schematic flowchart of a method for controlling disk he...

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Abstract

The invention discloses a control method for magnetic disk heartbeat of a cluster. The control method comprises the following steps of: alternately executing, by any node of the cluster, one of magnetic disk heartbeat, network heartbeat or serial port heartbeat or performing at least one network heartbeat process and one serial port heartbeat process between two magnetic disk heartbeat processes when a communication heartbeat mark is yes; performing magnetic disk heartbeat when the communication heartbeat mark is no; setting the communication heartbeat mark to be no when no node can detect the network heartbeat or the serial port heartbeat; determining, by any node, one of sectors unused by other nodes to be a sector to be used and determining other sectors except for the sector to be used by any node to be the sectors to be used by other nodes; and transmitting the heartbeat to the other nodes by any node by writing data into the sector to be used and acquiring heartbeat information of other nodes by reading other sectors. When network connection fails and/or a serial cable fails, the cluster can still work normally since the magnetic disk heartbeat is independently controlled, so that cluster fissure is prevented.

Description

technical field [0001] The invention relates to the field of computer networks, in particular to a control method for a cluster and its disk heartbeat. Background technique [0002] High-availability cluster is a relatively common type of cluster. When hardware and software systems fail, the data running in the cluster system is not easy to lose, and can resume normal operation in the shortest possible time. [0003] The hierarchical structure of the high-availability cluster is as follows from bottom to top: Messageing and Infrastructure Layer, Membership Layer, Resource Allocation Layer, and Resource Layer. Among them, the information infrastructure layer is a very important sublayer for transmitting heartbeat information. The so-called heartbeat transmission means that each node will regularly notify other nodes of its own heartbeat information. If a node has not detected it within 3-5 heartbeat cycles, it will be considered that the node is down. [0004] In the prior ...

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Application Information

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IPC IPC(8): H04L12/24H04L29/08G06F3/06
Inventor 魏子然
Owner CHINA STANDARD SOFTWARE
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