Memtable Pluggability and Alternate Memtables in Cassandra - CEP-11 and CEP-19

Explore the impact of Memtable Pluggability and Alternate Memtables on Cassandra's performance in this 37-minute conference talk by Branimir Lambov from DataStax and Shylaja Kokoori from Intel. Dive into CEP-11, which introduces an interface for alternative memtable implementations, including a sharded memtable proof-of-concept. Learn about CEP-19's new byte order-based memtable implementation with a custom in-memory trie, offering a more compact indexing structure for off-heap storage and faster lookups and insertions. Discover how these improvements significantly boost Cassandra's write throughput and reduce latencies. Examine the persistent memory memtable option, which utilizes an Adaptive Radix Tree allocated on persistent memory, eliminating the need for disk flushing and revolutionizing storage system performance. Gain insights into how these advancements translate into extraordinary speedups for Cassandra operations.