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ScyllaDB is a drop-in replacement for Apache Cassandra 3.11, with additional features from Apache Cassandra 4.0. This page contains information about ScyllaDB compatibility with Apache Cassandra.
The tables on this page include information about ScyllaDB Open Source support for Apache Cassandra features. They do not include the ScyllaDB Enterprise-only features or ScyllaDB-specific features with no match in Apache Cassandra. See ScyllaDB Features for more information about ScyllaDB features.
- Available in ScyllaDB and compatible with Apache Cassandra.
- Not available in ScyllaDB.
NC - Available in ScyllaDB, but not compatible with Apache Cassandra.
Apache Cassandra Interface |
Version Supported by ScyllaDB |
Comments |
|---|---|---|
CQL |
Fully compatible with version 3.3.1, with additional features from later CQL versions (for example, Duration type).
Fully compatible with protocol v4, with additional features from v5.
|
More below |
Thrift |
Not supported anymore in ScyllaDB 6.0 |
deprecated in Apache Cassandra and got dropped in 4.0
deprecated in ScyllaDB 5.2 and got dropped in 6.0
|
SSTable format (all versions) |
3.11(mc / md / me), 2.2(la), 2.1.8 (ka) |
me - supported in ScyllaDB Open Source 5.1 and ScyllaDB Enterprise 2022.2.0 (and later)md - supported in ScyllaDB Open Source 4.3 and ScyllaDB Enterprise 2021.1.0 (and later) |
JMX |
3.11 |
More below |
Configuration (cassandra.yaml) |
3.11 |
|
Log |
NC |
|
Gossip and internal streaming |
NC |
|
SSL |
NC |
The tools are based on Apache Cassandra 3.11.
Nodetool Reference - ScyllaDB commands for managing ScyllaDB node or cluster using the command-line nodetool utility.
Tracing - a ScyllaDB tool for debugging and analyzing internal flows in the server.
SSTableloader - Bulk load the sstables found in the directory to a ScyllaDB cluster
ScyllaDB SStable - Validates and dumps the content of SStables, generates a histogram, dumps the content of the SStable index.
ScyllaDB Types - Examines raw values obtained from SStables, logs, coredumps, etc.
cassandra-stress A tool for benchmarking and load testing a ScyllaDB and Cassandra clusters.
sstablelevelreset - Reset level to 0 on a selected set of SSTables that use LeveledCompactionStrategy (LCS).
sstablerepairedset - Mark specific SSTables as repaired or unrepaired.
scyllatop - A terminal base top-like tool for scylladb collectd/prometheus metrics.
scylla_dev_mode_setup - run ScyllaDB in Developer Mode.
perftune - performance configuration.
Reading mutation fragments - dump the underlying mutation data from tables.
Maintenance socket - a Unix domain socket for full-permission CQL connection.
Maintenance mode - a mode for performing maintenance tasks on an offline ScyllaDB node.
Task manager - a tool for tracking long-running background operations.
Run each tool with -h, --help for full options description.
Options |
Support |
|---|---|
Any (Write Only) |
|
One |
|
Two |
|
Three |
|
Quorum |
|
All |
|
Local One |
|
Local Quorum |
|
Each Quorum (Write Only) |
|
SERIAL |
* |
LOCAL_SERIAL |
* |
* See ScyllaDB LWT.
Options |
Support |
|---|---|
PropertyFileSnitch |
|
Dynamic snitching |
|
CloudstackSnitch |
|
Options |
Support |
|---|---|
Murmur3Partitioner (default) |
|
RandomPartitioner |
|
OrderPreservingPartitioner |
|
ByteOrderedPartitioner |
|
CollatingOrderPreservingPartitioner |
Options |
Support |
|---|---|
Compression (see below) |
Options |
Support |
|---|---|
CQL Compression |
|
LZ4 |
|
Snappy |
|
Options |
Support |
|---|---|
Options |
Support |
|---|---|
Incremental Repair |
|
Options |
Support |
|---|---|
SimpleStrategy |
|
NetworkTopologyStrategy |
Options |
Support |
|---|---|
Role Based Access Control (RBAC) |
Options |
Support |
|---|---|
Feature |
Support |
|---|---|
Counters |
|
User Defined Types |
|
User Defined Functions |
* |
Time to live (TTL) |
|
Super Column |
|
vNode Enable |
Default |
vNode Disable |
|
Triggers |
|
Batch Requests |
Includes conditional updates |
* Experimental
Feature |
Support |
|---|---|
DURABLE_WRITES |
|
IF NOT EXISTS |
|
WITH REPLICATION |
(see below) |
Feature |
Support |
|---|---|
SimpleStrategy |
|
NetworkTopologyStrategy |
|
OldNetworkTopologyStrategy |
Feature |
Support |
|---|---|
Primary key column |
|
Compound primary key |
|
Composite partition key |
|
Clustering order |
|
Static column |
Feature |
Support |
|---|---|
bloom_filter_fp_chance |
|
caching |
(ignored) |
comment |
|
compaction |
|
compression |
|
default_time_to_live |
|
gc_grace_seconds |
|
index_interval |
|
max_index_interval |
|
memtable_flush_period_in_ms |
(ignored) |
min_index_interval |
|
populate_io_cache_on_flush |
|
replicate_on_write |
|
speculative_retry |
|
Feature |
Support |
|---|---|
SizeTieredCompactionStrategy (STCS) |
|
DateTieredCompactionStrategy (DTCS) |
* |
TimeWindowCompactionStrategy (TWCS) |
* No longer supported. Use TimeWindowCompactionStrategy (TWCS) instead.
Feature |
Support |
|---|---|
sstable_compression LZ4Compressor |
|
sstable_compression SnappyCompressor |
|
sstable_compression DeflateCompressor |
|
chunk_length_kb |
|
crc_check_chance |
Feature |
Support |
|---|---|
ALTER KEYSPACE |
|
ALTER TABLE |
|
ALTER TYPE |
|
ALTER USER |
|
ALTER ROLE |
Feature |
Support |
|---|---|
BATCH |
|
INSERT |
|
Prepared Statements |
|
SELECT |
|
TRUNCATE |
|
UPDATE |
|
USE |
Feature |
Support |
|---|---|
CREATE TRIGGER |
|
CREATE USER |
|
CREATE ROLE |
Feature |
Support |
|---|---|
DROP KEYSPACE |
|
DROP TABLE |
|
DROP TRIGGER |
|
DROP TYPE |
|
DROP USER |
|
DROP ROLE |
Feature |
Support |
|---|---|
GRANT PERMISSIONS |
|
GRANT ROLE |
|
LIST PERMISSIONS |
|
LIST USERS |
|
LIST ROLES |
|
REVOKE PERMISSIONS |
|
REVOKE ROLE |
Feature |
Support |
|---|---|
MATERIALIZED VIEW |
|
ALTER MATERIALIZED VIEW |
|
CREATE MATERIALIZED VIEW |
|
DROP MATERIALIZED VIEW |
Feature |
Support |
|---|---|
INDEX |
|
CREATE INDEX |
|
DROP INDEX |
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