Node detection method and shared storage device

A shared storage, node detection technology, applied in digital data information retrieval, special data processing applications, instruments, etc., can solve the problems of heartbeat I/O unresponsive, wrong detection results, etc., to avoid read and write operations, save I/O The effect of O resources

Active Publication Date: 2019-01-04
NEW H3C CLOUD TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As the number of nodes in the cluster increases, the load on the shared file system will increase exponentially. When the storage of the shared file system is busy, the heartbeat I / O may not respond, resulting in wrong detection results.

Method used

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  • Node detection method and shared storage device
  • Node detection method and shared storage device
  • Node detection method and shared storage device

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Embodiment Construction

[0021] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0022] Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art w...

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Abstract

The embodiment of the present application provides a node detection method and a shared storage device which are communicatively connected with a target node and can be read and written by the targetnode. The shared memory device detects the connectivity between the device and the target node according to a preset detection period; if the detection result is disconnected, the shared memory deviceis determined that the target node cannot read or write the shared memory device; if the detection result is connected, a simulated read / write operation is performed on a preset address in the sharedmemory device, and it is judged whether the target node can read / write the shared memory device according to the result of executing the simulated read / write operation. As such, frequent read and write operation of the target node can be avoided, thereby saving I / O resources of the target node.

Description

technical field [0001] The present application relates to the technical field of shared storage, and in particular, to a node detection method and a shared storage device. Background technique [0002] A shared file system refers to a cluster composed of multiple nodes. Multiple nodes can access the same storage space, read and write files on any node, and access the file on other nodes. Nodes negotiate read and write permissions through distributed locks. . [0003] In some application scenarios, the nodes of the shared file system determine whether other nodes are online through the read-write heartbeat mechanism. Each node writes data at the corresponding fixed address according to its own node number, and reads the data written by other nodes to determine whether other nodes are online. Whether the node is online. In this way, each node needs to perform a large number of read and write (I / O) operations frequently, occupying a large amount of I / O resources. As the numb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06G06F16/176
CPCG06F3/061G06F3/0614G06F3/0638G06F3/067
Inventor 钟晋明
Owner NEW H3C CLOUD TECH CO LTD
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