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Intent log
- A mechanism to make computer operations more resilient in the event of failures. Intent logs are used in database software, transaction managers, and some file systems. Before performing an operation, a record of the intent to perform it is written, usually to some relatively permanent medium such as a hard disk drive. After the operation is performed, another record is written. If a failure occurs, then when the system is recovering, it can use the intent log to detect what operations were still in process during the failure, and use the intent log to help recover from the failure, usually by either undoing a partially completed operation, or by redoing one that might need to be completed. ← Wikipedia
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