Methods and systems to achieve complete redundancy for a subscriber data point system

A system comprising:

• a processor,
• a network interface, and
• a memory storing instructions executed by the processor to perform actions including:
• scheduling a first computing device to perform an operation on subscriber data stored in a first database at a first time point;
• scheduling a second computing device to perform the operation on a replica of the subscriber data stored in a second database at a second time point, the second time point being delayed a preset time period from the first time point;
• upon detecting that the first computing device starts performing the operation, causing the first computing device to:
• set a flag in the first database, and
• replicate the flag to the second database,
• upon detecting that the second computing device starts performing the operation, causing the second computing device to check a status of the flag;
• upon determining that the status of the flag is set,
• causing the second computing device to terminate the operation, and reset the status of the flag in the second database, and
• causing the first computing device to complete the operation;
• and upon determining that the status of the flag is not set,
• causing the second computing device to complete the operation.

A computer-readable storage medium storing computer-readable instructions, that when executed by a processor, cause the processor to perform actions comprising:

• scheduling a first computing device to perform an operation on subscriber data stored in a first database at a first time point;
• scheduling a second computing device to perform the operation on a replica of the subscriber data stored in a second database at a second time point, the second time point being delayed a preset time period from the first time point;
• upon detecting that the first computing device starts performing the operation, causing the first computing device to:
• set a flag in the first database, and
• replicate the flag to the second database,
• upon detecting that the second computing device starts performing the operation, causing the second computing device to check a status of the flag;
• upon determining that the status of the flag is set,
• causing the second computing device to terminate the operation, and reset the status of the flag in the second database, and
• causing the first computing device to complete the operation;
• and upon determining that the status of the flag is not set,
• causing the second computing device to complete the operation.