Mechanisms for handling writes in distributed database system

Abstract

Techniques are disclosed for processing record writes in a database system having a log owner and one or more log tailers. The log owner maintains a transaction log, and the log tailers replay the transaction log to recreate a state of the log owner. A log tailer may receive a write request to perform a record write operation to write a base record to a database as part of a database transaction. The log tailer may determine additional records to write as a result of having to write the base record. The log tailer buffers the base record and additional records in a memory buffer and issues them as a single batch to the log owner to update the transaction log. The log owner may update the transaction log and return a response to the log tailer that indicates whether the log owner successfully updated the transaction log.