June 2015
Intermediate to advanced
1800 pages
70h 6m
English
book
Microsoft SQL Server 2014 Unleashed
by Ray Rankins, Paul Bertucci, Chris Gallelli, Alex T. Silverstein
Content preview from Microsoft SQL Server 2014 Unleashed
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Logging, Checkpoint, and Recovery for In-Memory OLTP
Any data modifications on durable, memory-optimized tables (those created with durability = schema_and_data) are logged in the database transaction log to guarantee recovery of the tables to a known state after a system shutdown or failure. However, logging for memory-optimized tables is done differently than for disk-based tables.
In addition to writing log records for durable memory-optimized tables to disk, In-Memory OTLP also invokes a checkpoint process to write data for the tables to durable storage as well. SQL Server writes these pieces of information using log streams and checkpoint streams.
Log streams contain the changes made by committed transactions logged as insertion and deletion ...
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