Synchronizing state in large-scale distribution systems

An apparatus for synchronized data replacement, comprising:

• at least one processor;
• at least one memory coupled with the at least one processor;
• and
• instructions stored in the at least one memory and executable by the at least one processor to cause the apparatus to perform operations comprising:
• receiving, from a data source, a dataset replacement indication that is distributed to a plurality of processing clients, the dataset replacement indication indicating an upcoming synchronized data replacement in which each processing client of the plurality of processing clients are to synchronously replace a first synchronized dataset with a second synchronized dataset and a request period during which each processing client of the plurality of processing clients are to request, at randomized times within the request period, the second synchronized dataset;
• based at least in part on the dataset replacement indication and at a first randomized time within the request period, transmitting, to the data source, a query requesting the second synchronized dataset that is to replace the first synchronized dataset;
• receiving, based at least in part on transmitting the query, a response from the data source comprising the second synchronized dataset and an indication of an expiration time for the first synchronized dataset, the expiration time indicating when the plurality of processing clients are to synchronously replace the first synchronized dataset with the second synchronized dataset;
• storing, at a first processing client prior to the expiration time for the first synchronized dataset and based at least in part on receiving the response, the second synchronized dataset and the indication of the expiration time for the first synchronized dataset;
• and
• replacing , at the first processing client and in response to the expiration time for the first synchronized dataset occurring, the first synchronized dataset with the second synchronized dataset.

A non-transitory computer-readable medium storing instructions that, when executable by at least one processor, causes the at least one processor to perform operations comprising:

• receiving, from a data source, a dataset replacement indication that is distributed to a plurality of processing clients, the dataset replacement indication indicating an upcoming synchronized data replacement in which each processing client of the plurality of processing clients are to synchronously replace a first synchronized dataset with a second synchronized dataset and a request period during which each processing client of the plurality of processing clients are to request, at randomized times within the request period, the second synchronized dataset;
• based at least in part on the dataset replacement indication and at a first randomized time within the request period, transmitting, to the data source, a query requesting the second synchronized dataset that is to replace the first synchronized dataset;
• receiving, based at least in part on transmitting the query, a response from the data source comprising the second synchronized dataset and an indication of an expiration time for the first synchronized dataset, the expiration time indicating when the plurality of processing clients are to synchronously replace the first synchronized dataset with the second synchronized dataset;
• storing, at a first processing client prior to the expiration time for the first synchronized dataset and based at least in part on receiving the response, the second synchronized dataset and the indication of the expiration time for the first synchronized dataset;
• and
• replacing, at the first processing client and in response to the expiration time for the first synchronized dataset occurring, the first synchronized dataset with the second synchronized dataset.