Brokering persisted and unpersisted log records

A method for a broker component brokering log records, the method comprising:

• generating a plurality of log records, each of which corresponding to a write operation;
• for each of the plurality of log records, the write operation comprising:
• persisting the log record in a persistent log when the corresponding write operation is performed;
• receiving a request for a log record from a secondary computing system;
• determining, by the broker component, whether or not the requested log record has been persisted in a persistent log;
• when the log record is determined to have been persisted in the persistent log, responding, by the broker component, to the request for the log record by causing the requested log record to be provided to the secondary computing system, causing the secondary computing system to perform the write operation that has been performed by the computing system and has been persisted in the log record;
• and
• when the log record is not determined to have been persisted in the persistent log, preventing, by the broker component, the requested log record from being provided to the secondary computing system for at least so long as the broker component cannot confirm that the log record has been persisted in the persisted log, such that the secondary computing system is prevented from performing the write operation corresponding to the log record that has not been performed by the computing system or has not been persisted in the log record.

A computer program product comprising one or more computer-readable hardware storage devices having thereon computer-executable instructions that are structured such that, when executed by one or more processors of a computing system, configure the computing system to perform at least:

• generate a plurality of log records, each of which corresponding to a write operation;
• for each of the plurality of log records, the write operation comprising:
• persisting the log record in a persistent log when the corresponding write operation is performed;
• receiving a request for a log record from a secondary computing system;
• determining, by a broker component, whether or not the requested log record has been persisted in the persistent log;
• when the log record is determined to have been persisted in the persistent log, responding, by the broker component, to the request for the log record by causing the requested log record to be provided to the secondary computing system, causing the secondary computing system to perform the write operation that has been performed by the computing system and has been persisted in the log record;
• and
• if the log record is not determined to have been persisted in the persistent log, preventing, by the broker component, the requested log record from being provided to the secondary computing system for at least so long as the broker component cannot confirm that the log record has been persisted in the persisted log, such that the secondary computing system is prevented from performing the write operation corresponding to the log record that has not been performed by the computing system or has not been persisted in the log record.