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Software watchdog self-restoring method

A technology of software watchdog and recovery method, applied in the direction of instrument, error detection/correction, calculation, etc., can solve problems such as lack of reliability guarantee, and achieve the effect of reliability guarantee and reliability.

Active Publication Date: 2008-10-29
MAIPU COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technical problem to be solved by the present invention is to provide a software watchdog self-recovery method for the lack of self-reliability guarantee of the current software watchdog

Method used

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  • Software watchdog self-restoring method
  • Software watchdog self-restoring method

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Embodiment Construction

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Abstract

The invention provides a software watchdog self-recovery method, which relates to the software watchdog monitoring technique, in particular to the self-recovery method of the software watchdog. Aiming at the problem that the current software watchdog lacks the guarantee of the self-reliability, the invention discloses the self-recovery method for the software watchdog. The software watchdog self-recovery method of the invention comprises the steps as follows: a. a mother watchdog is arranged; b. the mother watchdog creates a son watchdog and monitors the son watchdog at certain times; c. the son watchdog monitors the system process and the mother watchdog at certain times; d. the son watchdog detects that whether the mother watchdog is normal or not; if so, the step c is returned; if not, the son watchdog is updated as a mother watchdog and the step b is returned; e. the mother watchdog detects whether the son watchdog quits normally; if so, the mother watchdog also quits; if not, the step b is returned. The invention has the beneficial effects of ensuring the software watchdog to be quickly recovered when being in unusual situation and ensuring the reliability of the software watchdog.

Description

Software watchdog self-recovery method technical field The invention relates to a software watchdog monitoring technology, in particular to a self-recovery method of the software watchdog. Background technique In a multi-process server system that requires high reliability assurance, a software watchdog is generally set to monitor each server process to ensure that the server process can recover itself when an exception occurs. Generally, the software watchdog is realized through the process, such as the Chinese Patent Publication No. CN1547125, published on November 17, 2004, and a software watchdog is disclosed in "A Method for Implementing a Watchdog Based on Shared Memory". The watchdog checks the running status of the monitored server process and the request sent by the user at regular intervals, and performs corresponding actions according to the detection result. However, the reliability of the software watchdog itself is not considered in the prior art. Once the s...

Claims

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Application Information

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IPC IPC(8): G06F11/00
Inventor 程常清
Owner MAIPU COMM TECH CO LTD