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PROVIDING CONSISTENT DATABASE RECOVERY AFTER DATABASE FAILURE FOR DISTRIBUTED DATABASES WITH NON-DURABLE STORAGE LEVERAGING BACKGROUND SYNCHRONIZATION POINT
PROVIDING CONSISTENT DATABASE RECOVERY AFTER DATABASE FAILURE FOR DISTRIBUTED DATABASES WITH NON-DURABLE STORAGE LEVERAGING BACKGROUND SYNCHRONIZATION POINT
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机译:利用非持久存储利用背景同步点为分布式数据库在数据库故障后提供一致的数据库恢复
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摘要
An approach for consistent database recovery for distributed database systems uses "synchronization points". A synchronization point is a global timestamp for which across all nodes of a distributed database system, the nodes have stored change records for any transaction occurring at and before the synchronization point in persistent logs. Each node may employ asynchronous flushing. However, on a periodic basis, each node coordinates to establish a synchronization point, which may entail ensuring change records for transactions that committed at or before the synchronization point are stored in persistent logs. In effect, a synchronization point represents that any transaction committed at or before the synchronization point has been durably committed.
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