What role does the Log Manager play in DB2's architecture?
- Manages database connections
- Optimizes database performance
- Processes SQL queries
- Records database changes
The Log Manager in DB2's architecture is responsible for recording database changes in the transaction log. It captures all modifications made to the database, including inserts, updates, and deletes, in a sequential manner. This transaction log serves as a critical resource for recovering the database in case of failures or crashes, as it allows for the reconstruction of database changes up to a specific point in time. Additionally, the log manager aids in ensuring data durability and maintaining the ACID properties of transactions.
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