Cassandra Chunk Cache

Question

I cannot find good documentation regarding 'Chunk Cache' in Cassandra.

I see some stats in 'nodetool info' but I cannot find reference online.

Could someone explain how this cache works and how (if possible) to configure it?

Thanks!

Answer 1

It is a cache of chunks of SSTables for speeding up read operations. You configure this by changing file_cache_size_in_mb in cassandra.yaml. You can read more about the implementation in CASSANDRA-5863