Anomaly recovery method for virtual machine in distributed environment

A virtual machine abnormity recovering method in distributed environment, comprising the following steps:

• (A1) running an independent computing assembly on each physical machine on which a virtual machine resides, wherein the computing assembly periodically reports the current running state of the corresponding physical machine to a state database;
• (A2) periodically polling the state database by a highly available controller so as to check the running state of all the physical machines in a physical machine group under the control of the highly available controller;
• and
• (A3) ending this checking process if the running states of all the physical machines in the physical machine group are normal;
• ending this checking process and sending an alarm by way of log if the running states of a plurality of the physical machines in the physical machine group are abnormal;
• and executing subsequent abnormity processing operation if the running state of only one physical machine in the physical machine group is abnormal so as to ensure that virtual machines on the physical machine whose running state is abnormal continues running normally.