row-level cache
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Key: CASSANDRA-678
URL: https://issues.apache.org/jira/browse/CASSANDRA-678
Project: Cassandra
Issue Type: New Feature
Components: Core
Reporter: Jonathan Ellis
Assignee: Jonathan Ellis
Priority: Minor
Fix For: 0.9
We have a key cache but that doesn't help mitigate the expensive
deserialization of the actual data to return.
Adding a row-level cache should be fairly simple using a
ConcurrentLinkedHashMap<String [key], ColumnFamily> structure. (We will only
cache whole rows at a time, since already know how to query on those in-memory.
This limits us to CFs full of narrow rows but that is a common enough use case
to be worth tackling if it can be done simply enough.)
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