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What do you understand by Commit log in Cassandra?
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Answer / Priyanka Jaiswal
The commit log, also known as the memtable, is a volatile data structure in Apache Cassandra that temporarily stores write operations until they are persisted to stable storage (SSTables). When the memtable reaches a predefined threshold (size or number of cells), it is flushed to disk and converted into an SSTable. The commit log plays a crucial role in maintaining data durability, as writes remain durable once written to both the commit log and an SSTable.
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