Cassandra

Jonathan Ellis

Roadmap

Cassandra 0.3

Remove support

Range queries

Test suite

Workarounds for JDK bugs

Rudimentary multi-datacenter support

Cassandra 0.4

Branched May 18

Data file format change to support billions of rows per node instead of millions

API changes (no more colon delimiters)

Multi-table (keyspace) support

LRU key cache

fsync support

Web interface

CQL

Cassandra 0.5

Bootstrap

Load balancing Closely related to “bootstrap done right”

Merkle tree repair

Millions of columns per row This will require another data format change

Multiget

Callout support