Grokking the Advanced System Design Interview

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Mock Interview: Chubby

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Quiz

How does Chubby ensure fault tolerance and reliability of data?

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Fault tolerance in Chubby is achieved through data replication and maintaining a transaction log for the master.For recovery in case of failure, all database transactions are stored in a transaction log. As this transaction log can become very large over time, every few hours, the master of each Chubby cell writes a snapshot of its database to a GFS server in a different building for fault tolerance.

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