In disaster scenarios, Hadoop administrators often rely on ____ to ensure minimal data loss and downtime.
- Checkpoints
- Checksums
- Journaling
- Mirroring
In disaster scenarios, Hadoop administrators often rely on Journaling to ensure minimal data loss and downtime. Journaling involves recording changes to the file system in a reliable and persistent journal, providing a log of transactions. This log can be used for recovery purposes, ensuring data consistency and integrity.
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