LOG RECORD MANAGEMENT

摘要

A database system may maintain a plurality of log records at a distributed storage system. Each of the plurality of log records may be associated with a respective change to a data page. The plurality of log records may be transformed (e.g., cropped, prune, reduce, fused, deleted, merged, added, etc.).

主权项

1. A system, comprising:
a plurality of storage nodes, each of which comprises at least one processor and a memory, wherein the plurality of storage nodes is configured to collectively implement a distributed log-structured storage system of a database service configured to:
receive a plurality of log records, from one or more database engine head nodes of the database service, wherein each of the plurality of log records is associated with a respective change to data stored by the database service and is further associated with a respective log sequence identifier;store the plurality of log records among the plurality of storage nodes; andtransform the plurality of log records, wherein the plurality of log records include two or more log sections as operands for said transforming.