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Automatic startup of a cluster system after occurrence of a recoverable error

A technology that is put into operation and automatically put into operation, which is applied in the direction of fault handling, instrumentation, and response errors that are not based on redundancy, to achieve the effect of improving downtime

Inactive Publication Date: 2007-02-07
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] However, this manual measure is based on increased downtime (Downtime), which cannot be tolerated by a high-availability cluster

Method used

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  • Automatic startup of a cluster system after occurrence of a recoverable error
  • Automatic startup of a cluster system after occurrence of a recoverable error

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Embodiment Construction

[0035] Then show about figure 1 A prior art heavy known conventional cluster architecture.

[0036] In a preferred embodiment of the invention, the method is used in a cluster 10 supporting high availability applications. It is especially an active-standby-cluster. These typically include a pair of servers, also referred to herein as nodes. A first node 12 is defined as a master server, and certain tasks are assigned to it. A second node 14 is defined as the standby server. In this embodiment, the first node 12 is faulty and is therefore also referred to as a defective node, while the second node 14 is a good node. It is of course also within the scope of the invention for the node case where the second node fails and is considered defective.

[0037] The second node 14 is used in the event of a failure, that is to say when the master server (first or defective node 12) fails to take over its tasks and then no longer acts as a standby server but as a new master server ef...

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PUM

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Abstract

The invention relates to a method for the automatic startup of a cluster (10) after an error has occurred in a node (12, 14) of said cluster (10) that led to a reboot of the node (12, 14). The inventive method is characterized in that it automatically recognizes whether the error can be recovered and the cluster (10) can be automatically started up. The inventive method allows for the automatic return of the cluster (10) to its operation state after occurrence of an error, thereby reducing down-times of the system.

Description

[0001] This application is a divisional application of the following applications: International filing date: February 9, 2001; International application number: PCT / EP02 / 00657; National application number: 02804758.3; The system is automatically put into operation." technical field [0002] The invention relates to a method for putting into operation a cluster consisting of a plurality of nodes after a repairable failure, wherein in the event of a failure one node takes over the tasks of another node (12). [0003] In the field of high-availability systems, the invention ensures an automatic transition to the fault-free operating state of the cluster, in particular after the start-up of a defective node. Background technique [0004] In principle there are various sources of faults which can only be re-bootstrapped by the computer, since they are difficult to overcome. Furthermore, such bootstrapped systems require the use of manual instructions. If the time required for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/14G06F11/00G06F11/07
CPCG06F11/0793G06F11/1438G06F11/0709G06F11/202G06F11/0781
Inventor D·克劳斯J·布拉古拉
Owner SIEMENS AG