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Apache Cassandra vs ScyllaDB

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Apache Cassandra vs ScyllaDB
FactApache CassandraScyllaDB
LanguageJavaC++
LicenceApache-2.0Other
Stars10k16k
Latestcassandra-5.0.9scylla-2026.3.2
Last push2026-10-052026-10-06
Release cadencetoo few releasestoo few releases
Active contributors45 commit authors on the default branch in the last 90 days38+ commit authors on the default branch in the last 90 days
Flagsnonenone
  • ScyllaDB replaces Apache Cassandra. Alternatives to Apache Cassandra →

    Drop-inSpeaks CQL, reads Cassandra SSTables and works with the same drivers and nodetool; triggers, Java UDFs and SAI indexes are missing.

  • Both replace Amazon DynamoDB. Alternatives to Amazon DynamoDB →

    PartialApache CassandraPartitioned wide-column tables with tunable consistency through CQL, not the DynamoDB API.

    PartialScyllaDBThe Alternator API serves DynamoDB requests, without transactions, PartiQL or the on-demand backup calls.

  • Both replace Amazon Keyspaces. Alternatives to Amazon Keyspaces →

    Drop-inApache CassandraKeyspaces implements Cassandra's CQL API, so drivers and queries carry over; IAM authentication becomes Cassandra roles.

    Drop-inScyllaDBSpeaks the Cassandra CQL API that Keyspaces implements; IAM authentication becomes ScyllaDB roles.