Predicting failure reoccurrence in a high availability system

A computer program product comprising:

• a computer-readable, tangible storage device;
• and
• a computer-readable program code stored in the computer-readable, tangible storage device, the computer-readable program code containing instructions that are executed by a central processing unit (CPU) of a computer system to implement a method of predicting a reoccurrence of a failure of a critical high availability (HA) component, the method comprising the steps of:
• the computer system determining a real-time failover is happening based on a failure of a HA system;
• the computer system determining an actual amount of time taken by an event occurring during the failover;
• the computer system receiving a reference amount of time that the event occurring during the failover is expected to take;
• the computer system determining the actual amount of time is not equal to the reference amount of time within a predefined tolerance;
• based on the actual amount of time being not equal to the reference amount of time, the computer system predicting the failure will reoccur unless a fault is repaired;
• the computer system identifying critical HA components participating in the event, the critical HA components included in the HA system;
• and
• the computer system determining a critical HA component included in the identified critical HA components has failed based on the fault and invoking self-healing to repair the fault in the critical HA component by performing a branch based decision making process on the identified critical HA components.

A computer system comprising:

• a central processing unit (CPU);
• a memory coupled to the CPU;
• and
• a computer readable storage medium coupled to the CPU, the computer readable storage medium containing instructions that are executed by the CPU via the memory to implement a method of predicting a reoccurrence of a failure of a critical high availability (HA) component, the method comprising:
• the computer system determining a real-time failover is happening based on a failure of a HA system;
• the computer system determining an actual amount of time taken by an event occurring during the failover;
• the computer system receiving a reference amount of time that the event occurring during the failover is expected to take;
• the computer system determining the actual amount of time is not equal to the reference amount of time within a predefined tolerance;
• based on the actual amount of time being not equal to the reference amount of time, the computer system predicting the failure will reoccur unless a fault is repaired;
• the computer system identifying critical HA components participating in the event, the critical HA components included in the HA system;
• and
• the computer system determining a critical HA component included in the identified critical HA components has failed based on the fault and invoking self-healing to repair the fault in the critical HA component by performing a branch based decision making process on the identified critical HA components.